Release v2.3.0

Pull translated strings from Transifex

.github/FUNDING.yml

@@ -9,4 +9,4 @@ community_bridge: # Replace with a single Community Bridge project-name e.g., cl
 liberapay: # Replace with a single Liberapay username
 issuehunt: # Replace with a single IssueHunt username
 otechie: # Replace with a single Otechie username
-custom: ['https://mempool.space/about'] # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
+custom: ['https://mempool.space/sponsor'] # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/ISSUE_TEMPLATE/00-bug-issue.md

@@ -1,7 +1,14 @@
+---
+name: 🐛 Bug Report
+about: Report bugs or other issues to us on GitHub
+---
+
 <!--
-   SUPPORT REQUESTS: This is for reporting bugs in Mempool.
-   If you have a support request, please join our Keybase group:
+   SUPPORT REQUESTS:
+   This is for reporting bugs in Mempool, not for support requests. 
+   If you have a support request, please join our Keybase or Matrix:
    https://keybase.io/team/mempool
+   https://matrix.to/#/#mempool:bitcoin.kyoto
 -->
 
 ### Description
@@ -14,11 +21,11 @@
 
 ### Steps to reproduce
 
-<!--if you can reliably reproduce the bug, list the steps here  -->
+<!-- if you can reliably reproduce the bug, list the steps here -->
 
 ### Expected behaviour
 
-<!--description of the expected behavior -->
+<!-- description of the expected behavior -->
 
 ### Actual behaviour
 
@@ -26,7 +33,7 @@
 
 ### Screenshots
 
-<!--Screenshots if gui related, drag and drop to add to the issue -->
+<!-- Screenshots if gui related, drag and drop to add to the issue -->
 
 #### Device or machine
 

.github/ISSUE_TEMPLATE/30-feature-request.md

@@ -0,0 +1,28 @@
+---
+name: ✨ Feature Request
+about: Request a feature or suggest other enhancements 💡
+---
+
+<!--
+   SUPPORT REQUESTS:
+   This is for requesting features in Mempool, not for support requests. 
+   If you have a support request, please join our Keybase or Matrix:
+   https://keybase.io/team/mempool
+   https://matrix.to/#/#mempool:bitcoin.kyoto
+-->
+
+### Description
+
+<!-- brief description of the feature request -->
+
+### Problem to be solved
+
+<!-- description of the the problem you're having -->
+
+### Proposed solution
+
+<!-- explain how you think we should solve the problem -->
+
+#### Additional info
+
+<!-- Additional information useful for implementing (e.g. docs, links, etc.) -->

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: false
+contact_links:
+  - name: 💬 Need help? Chat with us on Matrix
+    url: https://matrix.to/#/#mempool:bitcoin.kyoto
+    about: For support requests or general questions
+  - name: 💬 Need help? Chat with us on Keybase
+    url: https://keybase.io/team/mempool
+    about: For support requests or general questions

.github/workflows/cypress.yml

@@ -0,0 +1,80 @@
+name: Cypress Tests
+
+on: [push, pull_request]
+
+jobs:
+  cypress:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        containers: [1, 2, 3, 4, 5]
+        os: ["ubuntu-latest"]
+        browser: [chrome]
+    name: E2E tests on ${{ matrix.browser }} - ${{ matrix.os }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Setup node
+        uses: actions/setup-node@v2
+        with:
+          node-version: 16.10.0
+          cache: 'npm'
+          cache-dependency-path: frontend/package-lock.json
+      - name: ${{ matrix.browser }} browser tests (Mempool)
+        uses: cypress-io/github-action@v2
+        with:
+          working-directory: frontend
+          build: npm run config:defaults:mempool
+          start: npm run start:local-prod
+          wait-on: 'http://localhost:4200'
+          wait-on-timeout: 120
+          record: true
+          parallel: true
+          group: Tests on ${{ matrix.browser }} (Mempool)
+          browser: ${{ matrix.browser }}
+          ci-build-id: '${{ github.sha }}-${{ github.workflow }}-${{ github.event_name }}'
+        env:
+          CYPRESS_RECORD_KEY: ${{ secrets.CYPRESS_RECORD_KEY }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CYPRESS_PROJECT_ID: ${{ secrets.CYPRESS_PROJECT_ID }}
+
+      - name: ${{ matrix.browser }} browser tests (Liquid)
+        uses: cypress-io/github-action@v2
+        if: always()
+        with:
+          working-directory: frontend
+          build: npm run config:defaults:liquid
+          start: npm run start:local-prod
+          wait-on: 'http://localhost:4200'
+          wait-on-timeout: 120
+          record: true
+          parallel: true
+          spec: cypress/integration/liquid/liquid.spec.ts
+          group: Tests on ${{ matrix.browser }} (Liquid)
+          browser: ${{ matrix.browser }}
+          ci-build-id: '${{ github.sha }}-${{ github.workflow }}-${{ github.event_name }}'
+        env:
+          CYPRESS_RECORD_KEY: ${{ secrets.CYPRESS_RECORD_KEY }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CYPRESS_PROJECT_ID: ${{ secrets.CYPRESS_PROJECT_ID }}
+
+      - name: ${{ matrix.browser }} browser tests (Bisq)
+        uses: cypress-io/github-action@v2
+        if: always()
+        with:
+          working-directory: frontend
+          build: npm run config:defaults:bisq
+          start: npm run start:local-prod
+          wait-on: 'http://localhost:4200'
+          wait-on-timeout: 120
+          record: true
+          parallel: true
+          spec: cypress/integration/bisq/bisq.spec.ts
+          group: Tests on ${{ matrix.browser }} (Bisq)
+          browser: ${{ matrix.browser }}
+          ci-build-id: '${{ github.sha }}-${{ github.workflow }}-${{ github.event_name }}'
+        env:
+          CYPRESS_RECORD_KEY: ${{ secrets.CYPRESS_RECORD_KEY }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CYPRESS_PROJECT_ID: ${{ secrets.CYPRESS_PROJECT_ID }}

.github/workflows/on-tag.yml

@@ -27,6 +27,9 @@ jobs:
       - name: Show set environment variables
         run: |
           printf "      TAG: %s\n"  "$TAG"
+      
+      - name: Add SHORT_SHA env property with commit short sha
+        run: echo "SHORT_SHA=`echo ${GITHUB_SHA} | cut -c1-8`" >> $GITHUB_ENV
 
       - name: Login to Docker for building
         run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
@@ -64,14 +67,6 @@ jobs:
           --cache-to "type=local,dest=/tmp/.buildx-cache" \
           --platform linux/amd64,linux/arm64,linux/arm/v7 \
           --tag ${{ secrets.DOCKER_HUB_USER }}/${{ matrix.service }}:$TAG \
-          --output "type=registry" ./${{ matrix.service }}/
-
-      - name: Run Docker buildx for ${{ matrix.service }} against latest
-        run: |
-          docker buildx build \
-          --cache-from "type=local,src=/tmp/.buildx-cache" \
-          --cache-to "type=local,dest=/tmp/.buildx-cache" \
-          --platform linux/amd64,linux/arm64,linux/arm/v7 \
           --tag ${{ secrets.DOCKER_HUB_USER }}/${{ matrix.service }}:latest \
-          --output "type=registry" ./${{ matrix.service }}/
-
+          --output "type=registry" ./${{ matrix.service }}/ \
+          --build-arg commitHash=$SHORT_SHA

.nvmrc

@@ -0,0 +1 @@
+v16.10.0

.vscode/settings.json

@@ -0,0 +1,4 @@
+{
+  "editor.tabSize": 2,
+  "typescript.tsdk": "./backend/node_modules/typescript/lib"
+}

GNUmakefile

@@ -25,8 +25,7 @@ help:
 .PHONY: init
 init:
 	@echo ''
-	mkdir -p   $(DATA) $(DATA)/mysql $(DATA)/mysql/db-scripts $(DATA)/mysql/data 
-	install -v mariadb-structure.sql $(DATA)/mysql/db-scripts
+	mkdir -p   $(DATA) $(DATA)/mysql $(DATA)/mysql/data 
 	#REF: https://github.com/mempool/mempool/blob/master/docker/README.md
 	cat docker/docker-compose.yml > docker-compose.yml
 	cat backend/mempool-config.sample.json > backend/mempool-config.json

LICENSE

@@ -12,8 +12,13 @@ the terms of (at your option) either:
  Foundation, either version 3 of the License or any later version approved by a
  proxy statement published on <https://mempool.space/about>.
 
-However, these licenses do not grant you any rights to use the "mempool.space"
-trademarks or logos, or any other trademarks of Mempool Space K.K.
+However, this copyright license does not include an implied right or license to
+use our trademarks: The Mempool Open Source Project™, mempool.space™, the
+mempool Logo™, the mempool.space Vertical Logo™, the mempool.space Horizontal
+Logo™, the mempool Square Logo™, and the mempool Blocks logo™ are registered
+trademarks or trademarks of Mempool Space K.K in Japan, the United States,
+and/or other countries. See our full Trademark Policy and Guidelines for more
+details, published on <https://mempool.space/trademark-policy>.
 
 This program is distributed in the hope that it will be useful, but WITHOUT ANY
 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A

README.md

@@ -1,8 +1,8 @@
-# The Mempool Open Source Project
+# The Mempool Open Source Project™
 
 Mempool is the fully featured visualizer, explorer, and API service running on [mempool.space](https://mempool.space/), an open source project developed and operated for the benefit of the Bitcoin community, with a focus on the emerging transaction fee market to help our transition into a multi-layer ecosystem.
 
-![mempool](https://mempool.space/resources/screenshots/v2.1.0-dashboard.png)
+![mempool](https://mempool.space/resources/screenshots/v2.3.0-dashboard.png)
 
 ## Installation Methods
 
@@ -14,17 +14,249 @@ Mempool can be self-hosted on a wide variety of your own hardware, ranging from
 4) [Production installation on a powerful FreeBSD server](https://github.com/mempool/mempool/tree/master/production)
 5) [High Availability cluster using powerful FreeBSD servers](https://github.com/mempool/mempool/tree/master/production#high-availability)
 
+# Docker Installation
+
+The `docker` directory contains the Dockerfiles used to build and release the official images and a `docker-compose.yml` file that is intended for end users to run a Mempool instance with minimal effort.
+
+## bitcoind only configuration
+
+To run an instance with the default settings, use the following command:
+
+```bash
+$ docker-compose up
+```
+
+The default configuration will allow you to run Mempool using `bitcoind` as the backend, so address lookups will be disabled. It assumes you have added RPC credentials for the `mempool` user with a `mempool` password in your `bitcoin.conf` file:
+
+```
+rpcuser=mempool
+rpcpassword=mempool
+```
+
+If you want to use your current credentials, update them in the `docker-compose.yml` file:
+
+```
+  api:
+    environment:
+      MEMPOOL_BACKEND: "none"
+      RPC_HOST: "172.27.0.1"
+      RPC_PORT: "8332"
+      RPC_USER: "mempool"
+      RPC_PASS: "mempool"
+```
+
+Note: the IP in the example above refers to Docker's default gateway IP address so the container can hit the `bitcoind` instance running on the host machine. If your setup is different, update it accordingly.
+
+You can check if the instance is running by visiting http://localhost - the graphs will be populated as new transactions are detected.
+
+## bitcoind+electrum configuration
+
+In order to run with a `electrum` compatible server as the backend, in addition to the settings required for running with `bitcoind` above, you will need to make the following changes to the `docker-compose.yml` file:
+
+- Under the `api` service, change the value of the `MEMPOOL_BACKEND` key from `none` to `electrum`:
+
+```
+  api:
+    environment:
+      MEMPOOL_BACKEND: "none"
+```
+
+- Under the `api` service, set the `ELECTRUM_HOST` and `ELECTRUM_PORT` keys to your Docker host IP address and set `ELECTRUM_TLS_ENABLED` to `false`:
+
+```
+  api:
+    environment:
+      ELECTRUM_HOST: "172.27.0.1"
+      ELECTRUM_PORT: "50002"
+      ELECTRUM_TLS_ENABLED: "false"
+```
+
+You can update any of the backend settings in the `mempool-config.json` file using the following environment variables to override them under the same `api` `environment` section.
+
+JSON:
+```
+  "MEMPOOL": {
+    "NETWORK": "mainnet",
+    "BACKEND": "electrum",
+    "HTTP_PORT": 8999,
+    "SPAWN_CLUSTER_PROCS": 0,
+    "API_URL_PREFIX": "/api/v1/",
+    "POLL_RATE_MS": 2000,
+    "CACHE_DIR": "./cache",
+    "CLEAR_PROTECTION_MINUTES": 20,
+    "RECOMMENDED_FEE_PERCENTILE": 50,
+    "BLOCK_WEIGHT_UNITS": 4000000,
+    "INITIAL_BLOCKS_AMOUNT": 8,
+    "MEMPOOL_BLOCKS_AMOUNT": 8,
+    "PRICE_FEED_UPDATE_INTERVAL": 3600,
+    "USE_SECOND_NODE_FOR_MINFEE": false,
+    "EXTERNAL_ASSETS": []
+  },
+```
+
+docker-compose overrides::
+```
+      MEMPOOL_NETWORK: ""
+      MEMPOOL_BACKEND: ""
+      MEMPOOL_HTTP_PORT: ""
+      MEMPOOL_SPAWN_CLUSTER_PROCS: ""
+      MEMPOOL_API_URL_PREFIX: ""
+      MEMPOOL_POLL_RATE_MS: ""
+      MEMPOOL_CACHE_DIR: ""
+      MEMPOOL_CLEAR_PROTECTION_MINUTES: ""
+      MEMPOOL_RECOMMENDED_FEE_PERCENTILE: ""
+      MEMPOOL_BLOCK_WEIGHT_UNITS: ""
+      MEMPOOL_INITIAL_BLOCKS_AMOUNT: ""
+      MEMPOOL_MEMPOOL_BLOCKS_AMOUNT: ""
+      MEMPOOL_PRICE_FEED_UPDATE_INTERVAL: ""
+      MEMPOOL_USE_SECOND_NODE_FOR_MINFEE: ""
+      MEMPOOL_EXTERNAL_ASSETS: ""
+```
+
+JSON:
+```
+"CORE_RPC": {
+    "HOST": "127.0.0.1",
+    "PORT": 8332,
+    "USERNAME": "mempool",
+    "PASSWORD": "mempool"
+  },
+```
+docker-compose overrides:
+```
+      CORE_RPC_HOST: ""
+      CORE_RPC_PORT: ""
+      CORE_RPC_USERNAME: ""
+      CORE_RPC_PASSWORD: ""
+```
+
+JSON:
+```
+  "ELECTRUM": {
+    "HOST": "127.0.0.1",
+    "PORT": 50002,
+    "TLS_ENABLED": true
+  },
+```
+
+docker-compose overrides:
+```
+      ELECTRUM_HOST: ""
+      ELECTRUM_PORT: ""
+      ELECTRUM_TLS: ""
+```
+
+JSON:
+```
+  "ESPLORA": {
+    "REST_API_URL": "http://127.0.0.1:3000"
+  },
+```
+docker-compose overrides:
+```
+      ESPLORA_REST_API_URL: ""
+```
+
+JSON:
+```
+  "SECOND_CORE_RPC": {
+    "HOST": "127.0.0.1",
+    "PORT": 8332,
+    "USERNAME": "mempool",
+    "PASSWORD": "mempool"
+  },
+```
+
+docker-compose overrides:
+```
+      SECOND_CORE_RPC_HOST: ""
+      SECOND_CORE_RPC_PORT: ""
+      SECOND_CORE_RPC_USERNAME: ""
+      SECOND_CORE_RPC_PASSWORD: ""
+```
+
+JSON:
+```
+  "DATABASE": {
+    "ENABLED": true,
+    "HOST": "127.0.0.1",
+    "PORT": 3306,
+    "DATABASE": "mempool",
+    "USERNAME": "mempool",
+    "PASSWORD": "mempool"
+  },
+```
+
+docker-compose overrides:
+```
+      DATABASE_ENABLED: ""
+      DATABASE_HOST: ""
+      DATABASE_PORT: ""
+      DATABASE_DATABASE: ""
+      DATABASE_USERAME: ""
+      DATABASE_PASSWORD: ""
+```
+
+JSON:
+```
+  "SYSLOG": {
+    "ENABLED": true,
+    "HOST": "127.0.0.1",
+    "PORT": 514,
+    "MIN_PRIORITY": "info",
+    "FACILITY": "local7"
+  },
+```
+
+docker-compose overrides:
+```
+      SYSLOG_ENABLED: ""
+      SYSLOG_HOST: ""
+      SYSLOG_PORT: ""
+      SYSLOG_MIN_PRIORITY: ""
+      SYSLOG_FACILITY: ""
+```
+
+JSON:
+```
+  "STATISTICS": {
+    "ENABLED": true,
+    "TX_PER_SECOND_SAMPLE_PERIOD": 150
+  },
+```
+
+docker-compose overrides:
+```
+      STATISTICS_ENABLED: ""
+      STATISTICS_TX_PER_SECOND_SAMPLE_PERIOD: ""
+```
+
+JSON:
+```
+  "BISQ": {
+    "ENABLED": false,
+    "DATA_PATH": "/bisq/statsnode-data/btc_mainnet/db"
+  }
+```
+
+docker-compose overrides:
+```
+      BISQ_ENABLED: ""
+      BISQ_DATA_PATH: ""
+```
+
+
 # Manual Installation
 
 The following instructions are for a manual installation on Linux or FreeBSD. The file and directory paths may need to be changed to match your OS.
 
 ## Dependencies
 
-* Bitcoin Core (no pruning, txindex=1)
-* Electrum Server (romanz/electrs)
-* NodeJS (official stable LTS)
-* MariaDB (default config)
-* Nginx (use supplied nginx.conf and nginx-mempool.conf)
+* [Bitcoin](https://github.com/bitcoin/bitcoin)
+* [Electrum](https://github.com/romanz/electrs)
+* [NodeJS](https://github.com/nodejs/node)
+* [MariaDB](https://github.com/mariadb/server)
+* [Nginx](https://github.com/nginx/nginx)
 
 ## Mempool
 
@@ -41,7 +273,7 @@ Clone the mempool repo, and checkout the latest release tag:
 Enable RPC and txindex in `bitcoin.conf`:
 ```bash
   rpcuser=mempool
-  rpcpassword=71b61986da5b03a5694d7c7d5165ece5
+  rpcpassword=mempool
   txindex=1
 ```
 
@@ -54,7 +286,7 @@ Install MariaDB from OS package manager:
 
   # macOS
   brew install mariadb
-  brew services start mariadb
+  mysql.server start
 ```
 
 Create database and grant privileges:
@@ -69,18 +301,13 @@ Create database and grant privileges:
   Query OK, 0 rows affected (0.00 sec)
 ```
 
-From the mempool repo's top-level folder, import the database structure:
-```bash
-  mysql -u mempool -p mempool < mariadb-structure.sql
-```
-
 ## Mempool Backend
 Install mempool dependencies from npm and build the backend:
 
 ```bash
   # backend
   cd backend
-  npm install
+  npm install --prod
   npm run build
 ```
 
@@ -96,18 +323,18 @@ Edit `mempool-config.json` to add your Bitcoin Core node RPC credentials:
   "MEMPOOL": {
     "NETWORK": "mainnet",
     "BACKEND": "electrum",
-    "HTTP_PORT": 8999,
-    "API_URL_PREFIX": "/api/v1/",
-    "POLL_RATE_MS": 2000
+    "HTTP_PORT": 8999
   },
   "CORE_RPC": {
+    "HOST": "127.0.0.1",
+    "PORT": 8332,
     "USERNAME": "mempool",
-    "PASSWORD": "71b61986da5b03a5694d7c7d5165ece5"
+    "PASSWORD": "mempool"
   },
   "ELECTRUM": {
     "HOST": "127.0.0.1",
     "PORT": 50002,
-    "TLS_ENABLED": true,
+    "TLS_ENABLED": true
   },
   "DATABASE": {
     "ENABLED": true,
@@ -116,10 +343,6 @@ Edit `mempool-config.json` to add your Bitcoin Core node RPC credentials:
     "USERNAME": "mempool",
     "PASSWORD": "mempool",
     "DATABASE": "mempool"
-  },
-  "STATISTICS": {
-    "ENABLED": true,
-    "TX_PER_SECOND_SAMPLE_PERIOD": 150
   }
 }
 ```
@@ -160,14 +383,14 @@ Install mempool dependencies from npm and build the frontend static HTML/CSS/JS:
 ```bash
   # frontend
   cd frontend
-  npm install
+  npm install --prod
   npm run build
 ```
 
 Install the output into nginx webroot folder:
 
 ```bash
-  sudo rsync -av --delete dist/mempool/ /var/www/html/
+  sudo rsync -av --delete dist/ /var/www/
 ```
 
 ## nginx + certbot
@@ -176,10 +399,10 @@ Install the supplied nginx.conf and nginx-mempool.conf in /etc/nginx
 
 ```bash
   # install nginx and certbot
-  apt-get install -y nginx python-certbot-nginx
+  apt-get install -y nginx python3-certbot-nginx
 
   # install the mempool configuration for nginx
-  cp nginx.conf nginx-mempool.conf /etc/nginx/nginx.conf
+  cp nginx.conf nginx-mempool.conf /etc/nginx/
 
   # replace example.com with your domain name
   certbot --nginx -d example.com

backend/.gitignore

@@ -1,7 +1,10 @@
 # See http://help.github.com/ignore-files/ for more about ignoring files.
 
-# production config
-mempool-config.json
+# production config and external assets
+*.json
+!mempool-config.sample.json
+
+icons.json
 
 # compiled output
 /dist

backend/.vscode/settings.json

@@ -0,0 +1,4 @@
+{
+  "editor.tabSize": 2,
+  "typescript.tsdk": "../backend/node_modules/typescript/lib"
+}

backend/mempool-config.sample.json

@@ -8,7 +8,13 @@
     "POLL_RATE_MS": 2000,
     "CACHE_DIR": "./cache",
     "CLEAR_PROTECTION_MINUTES": 20,
-    "RECOMMENDED_FEE_PERCENTILE": 50
+    "RECOMMENDED_FEE_PERCENTILE": 50,
+    "BLOCK_WEIGHT_UNITS": 4000000,
+    "INITIAL_BLOCKS_AMOUNT": 8,
+    "MEMPOOL_BLOCKS_AMOUNT": 8,
+    "PRICE_FEED_UPDATE_INTERVAL": 3600,
+    "USE_SECOND_NODE_FOR_MINFEE": false,
+    "EXTERNAL_ASSETS": []
   },
   "CORE_RPC": {
     "HOST": "127.0.0.1",
@@ -24,8 +30,7 @@
   "ESPLORA": {
     "REST_API_URL": "http://127.0.0.1:3000"
   },
-  "CORE_RPC_MINFEE": {
-    "ENABLED": false,
+  "SECOND_CORE_RPC": {
     "HOST": "127.0.0.1",
     "PORT": 8332,
     "USERNAME": "mempool",
@@ -50,11 +55,7 @@
     "ENABLED": true,
     "TX_PER_SECOND_SAMPLE_PERIOD": 150
   },
-  "BISQ_BLOCKS": {
-    "ENABLED": false,
-    "DATA_PATH": "/bisq/statsnode-data/btc_mainnet/db/json"
-  },
-  "BISQ_MARKETS": {
+  "BISQ": {
     "ENABLED": false,
     "DATA_PATH": "/bisq/statsnode-data/btc_mainnet/db"
   }

backend/package-lock.json

@@ -1,32 +1,32 @@
 {
   "name": "mempool-backend",
-  "version": "2.0.0",
+  "version": "2.3.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "mempool-backend",
-      "version": "2.0.0",
+      "version": "2.3.0",
       "license": "GNU Affero General Public License v3.0",
       "dependencies": {
-        "@mempool/bitcoin": "^3.0.2",
+        "@mempool/bitcoin": "^3.0.3",
         "@mempool/electrum-client": "^1.1.7",
-        "axios": "^0.21.1",
-        "bitcoinjs-lib": "^5.2.0",
+        "@types/ws": "8.2.2",
+        "axios": "0.24.0",
+        "bitcoinjs-lib": "6.0.1",
         "crypto-js": "^4.0.0",
         "express": "^4.17.1",
         "locutus": "^2.0.12",
-        "mysql2": "2.2.5",
+        "mysql2": "2.3.3",
         "node-worker-threads-pool": "^1.4.3",
-        "ws": "^7.4.4"
+        "typescript": "4.4.4",
+        "ws": "8.3.0"
       },
       "devDependencies": {
         "@types/compression": "^1.0.1",
         "@types/express": "^4.17.2",
         "@types/locutus": "^0.0.6",
-        "@types/ws": "^6.0.4",
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-      "version": "2.0.14",
-      "resolved": "https://registry.npmjs.org/locutus/-/locutus-2.0.14.tgz",
-      "integrity": "sha512-0H1o1iHNEp3kJ5rW57bT/CAP5g6Qm0Zd817Wcx2+rOMTYyIJoc482Ja1v9dB6IUjwvWKcBNdYi7x2lRXtlJ3bA==",
-      "requires": {
-        "es6-promise": "^4.2.5"
-      }
+      "version": "2.0.15",
+      "resolved": "https://registry.npmjs.org/locutus/-/locutus-2.0.15.tgz",
+      "integrity": "sha512-2xWC4RkoAoCVXEb/stzEgG1TNgd+mrkLBj6TuEDNyUoKeQ2XzDTyJUC23sMiqbL6zJmJSP3w59OZo+zc4IBOmA=="
     },
     "long": {
       "version": "4.0.0",
@@ -2361,11 +2065,6 @@
       "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
       "integrity": "sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E="
     },
-    "merkle-lib": {
-      "version": "2.0.10",
-      "resolved": "https://registry.npmjs.org/merkle-lib/-/merkle-lib-2.0.10.tgz",
-      "integrity": "sha1-grjbrnXieneFOItz+ddyXQ9vMyY="
-    },
     "methods": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz",
@@ -2389,16 +2088,6 @@
         "mime-db": "1.45.0"
       }
     },
-    "minimalistic-assert": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz",
-      "integrity": "sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A=="
-    },
-    "minimalistic-crypto-utils": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz",
-      "integrity": "sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo="
-    },
     "minimatch": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
@@ -2429,13 +2118,13 @@
       "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
     },
     "mysql2": {
-      "version": "2.2.5",
-      "resolved": "https://registry.npmjs.org/mysql2/-/mysql2-2.2.5.tgz",
-      "integrity": "sha512-XRqPNxcZTpmFdXbJqb+/CtYVLCx14x1RTeNMD4954L331APu75IC74GDqnZMEt1kwaXy6TySo55rF2F3YJS78g==",
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/mysql2/-/mysql2-2.3.3.tgz",
+      "integrity": "sha512-wxJUev6LgMSgACDkb/InIFxDprRa6T95+VEoR+xPvtngtccNH2dGjEB/fVZ8yg1gWv1510c9CvXuJHi5zUm0ZA==",
       "requires": {
-        "denque": "^1.4.1",
+        "denque": "^2.0.1",
         "generate-function": "^2.3.1",
-        "iconv-lite": "^0.6.2",
+        "iconv-lite": "^0.6.3",
         "long": "^4.0.0",
         "lru-cache": "^6.0.0",
         "named-placeholders": "^1.1.2",
@@ -2444,9 +2133,9 @@
       },
       "dependencies": {
         "iconv-lite": {
-          "version": "0.6.2",
-          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.2.tgz",
-          "integrity": "sha512-2y91h5OpQlolefMPmUlivelittSWy0rP+oYVpn6A7GwVHNE8AWzoYOBNmlwks3LobaJxgHCYZAnyNo2GgpNRNQ==",
+          "version": "0.6.3",
+          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
+          "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
           "requires": {
             "safer-buffer": ">= 2.1.2 < 3.0.0"
           }
@@ -2477,11 +2166,6 @@
         }
       }
     },
-    "nan": {
-      "version": "2.14.2",
-      "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.2.tgz",
-      "integrity": "sha512-M2ufzIiINKCuDfBSAUr1vWQ+vuVcA9kqx8JJUsbQi6yf1uGRyb7HfpdfUr5qLXf3B/t8dPvcjhKMmlfnP47EzQ=="
-    },
     "negotiator": {
       "version": "0.6.2",
       "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
@@ -2521,9 +2205,9 @@
       "dev": true
     },
     "path-parse": {
-      "version": "1.0.6",
-      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
-      "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==",
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
       "dev": true
     },
     "path-to-regexp": {
@@ -2545,27 +2229,11 @@
       "resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz",
       "integrity": "sha1-8FKijacOYYkX7wqKw0wa5aaChrM="
     },
-    "pushdata-bitcoin": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/pushdata-bitcoin/-/pushdata-bitcoin-1.0.1.tgz",
-      "integrity": "sha1-FZMdPNlnreUiBvUjqnMxrvfUOvc=",
-      "requires": {
-        "bitcoin-ops": "^1.3.0"
-      }
-    },
     "qs": {
       "version": "6.7.0",
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.7.0.tgz",
       "integrity": "sha512-VCdBRNFTX1fyE7Nb6FYoURo/SPe62QCaAyzJvUjwRaIsc+NePBEniHlvxFmmX56+HZphIGtV0XeCirBtpDrTyQ=="
     },
-    "randombytes": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
-      "integrity": "sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==",
-      "requires": {
-        "safe-buffer": "^5.1.0"
-      }
-    },
     "range-parser": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz",
@@ -2717,18 +2385,6 @@
         "has-flag": "^3.0.0"
       }
     },
-    "tiny-secp256k1": {
-      "version": "1.1.6",
-      "resolved": "https://registry.npmjs.org/tiny-secp256k1/-/tiny-secp256k1-1.1.6.tgz",
-      "integrity": "sha512-FmqJZGduTyvsr2cF3375fqGHUovSwDi/QytexX1Se4BPuPZpTE5Ftp5fg+EFSuEf3lhZqgCRjEG3ydUQ/aNiwA==",
-      "requires": {
-        "bindings": "^1.3.0",
-        "bn.js": "^4.11.8",
-        "create-hmac": "^1.1.7",
-        "elliptic": "^6.4.0",
-        "nan": "^2.13.2"
-      }
-    },
     "toidentifier": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
@@ -2785,10 +2441,9 @@
       "integrity": "sha512-7uc1O8h1M1g0rArakJdf0uLRSSgFcYexrVoKo+bzJd32gd4gDy2L/Z+8/FjPnU9ydY3pEnVPtr9FyscYY60K1g=="
     },
     "typescript": {
-      "version": "4.2.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.3.tgz",
-      "integrity": "sha512-qOcYwxaByStAWrBf4x0fibwZvMRG+r4cQoTjbPtUlrWjBHbmCAww1i448U0GJ+3cNNEtebDteo/cHOR3xJ4wEw==",
-      "dev": true
+      "version": "4.4.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.4.4.tgz",
+      "integrity": "sha512-DqGhF5IKoBl8WNf8C1gu8q0xZSInh9j1kJJMqT3a94w1JzVaBU4EXOSMrz9yDqMT0xt3selp83fuFMQ0uzv6qA=="
     },
     "unpipe": {
       "version": "1.0.0",
@@ -2833,9 +2488,9 @@
       "dev": true
     },
     "ws": {
-      "version": "7.4.4",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.4.tgz",
-      "integrity": "sha512-Qm8k8ojNQIMx7S+Zp8u/uHOx7Qazv3Yv4q68MiWWWOJhiwG5W3x7iqmRtJo8xxrciZUY4vRxUTJCKuRnF28ZZw==",
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.3.0.tgz",
+      "integrity": "sha512-Gs5EZtpqZzLvmIM59w4igITU57lrtYVFneaa434VROv4thzJyV6UjIL3D42lslWlI+D4KzLYnxSwtfuiO79sNw==",
       "requires": {}
     },
     "yallist": {

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mempool-backend",
-  "version": "2.2.0-dev",
+  "version": "2.3.0",
   "description": "Bitcoin mempool visualizer and blockchain explorer backend",
   "license": "GNU Affero General Public License v3.0",
   "homepage": "https://mempool.space",
@@ -28,23 +28,23 @@
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "dependencies": {
-    "@mempool/bitcoin": "^3.0.2",
+    "@mempool/bitcoin": "^3.0.3",
     "@mempool/electrum-client": "^1.1.7",
-    "axios": "^0.21.1",
-    "bitcoinjs-lib": "^5.2.0",
+    "@types/ws": "8.2.2",
+    "axios": "0.24.0",
+    "bitcoinjs-lib": "6.0.1",
     "crypto-js": "^4.0.0",
     "express": "^4.17.1",
     "locutus": "^2.0.12",
-    "mysql2": "2.2.5",
+    "mysql2": "2.3.3",
     "node-worker-threads-pool": "^1.4.3",
-    "ws": "^7.4.4"
+    "typescript": "4.4.4",
+    "ws": "8.3.0"
   },
   "devDependencies": {
     "@types/compression": "^1.0.1",
     "@types/express": "^4.17.2",
     "@types/locutus": "^0.0.6",
-    "@types/ws": "^6.0.4",
-    "tslint": "^6.1.0",
-    "typescript": "^4.1.5"
+    "tslint": "^6.1.0"
   }
 }

backend/src/api/backend-info.ts

@@ -30,7 +30,7 @@ class BackendInfo {
     try {
       this.gitCommitHash = fs.readFileSync('../.git/refs/heads/master').toString().trim();
     } catch (e) {
-      logger.err('Could not load git commit info: ' + e.message || e);
+      logger.err('Could not load git commit info: ' + (e instanceof Error ? e.message : e));
     }
   }
 
@@ -39,7 +39,7 @@ class BackendInfo {
       const packageJson = fs.readFileSync('package.json').toString();
       this.version = JSON.parse(packageJson).version;
     } catch (e) {
-      throw new Error(e);
+      throw new Error(e instanceof Error ? e.message : 'Error');
     }
   }
 }

backend/src/api/bisq/bisq.ts

@@ -8,9 +8,10 @@ import { StaticPool } from 'node-worker-threads-pool';
 import logger from '../../logger';
 
 class Bisq {
-  private static BLOCKS_JSON_FILE_PATH = config.BISQ_BLOCKS.DATA_PATH + '/all/blocks.json';
+  private static BLOCKS_JSON_FILE_PATH = config.BISQ.DATA_PATH + '/json/all/blocks.json';
   private latestBlockHeight = 0;
   private blocks: BisqBlock[] = [];
+  private allBlocks: BisqBlock[] = [];
   private transactions: BisqTransaction[] = [];
   private transactionIndex: { [txId: string]: BisqTransaction } = {};
   private blockIndex: { [hash: string]: BisqBlock } = {};
@@ -98,7 +99,7 @@ class Bisq {
       this.topDirectoryWatcher.close();
     }
     let fsWait: NodeJS.Timeout | null = null;
-    this.topDirectoryWatcher = fs.watch(config.BISQ_BLOCKS.DATA_PATH, () => {
+    this.topDirectoryWatcher = fs.watch(config.BISQ.DATA_PATH + '/json', () => {
       if (fsWait) {
         clearTimeout(fsWait);
       }
@@ -126,7 +127,7 @@ class Bisq {
       return;
     }
     let fsWait: NodeJS.Timeout | null = null;
-    this.subdirectoryWatcher = fs.watch(config.BISQ_BLOCKS.DATA_PATH + '/all', () => {
+    this.subdirectoryWatcher = fs.watch(config.BISQ.DATA_PATH + '/json/all', () => {
       if (fsWait) {
         clearTimeout(fsWait);
       }
@@ -161,7 +162,7 @@ class Bisq {
       this.buildIndex();
       this.calculateStats();
     } catch (e) {
-      logger.err('loadBisqDumpFile() error.' + e.message || e);
+      logger.info('loadBisqDumpFile() error.' + (e instanceof Error ? e.message : e));
     }
   }
 
@@ -171,7 +172,7 @@ class Bisq {
     this.transactionIndex = {};
     this.addressIndex = {};
 
-    this.blocks.forEach((block) => {
+    this.allBlocks.forEach((block) => {
       /* Build block index */
       if (!this.blockIndex[block.hash]) {
         this.blockIndex[block.hash] = block;
@@ -245,9 +246,10 @@ class Bisq {
     if (cacheData && cacheData.length !== 0) {
       logger.debug('Processing Bisq data dump...');
       const data: BisqBlocks = await this.jsonParsePool.exec(cacheData);
-      if (data.blocks && data.blocks.length !== this.blocks.length) {
-        this.blocks = data.blocks.filter((block) => block.txs.length > 0);
-        this.blocks.reverse();
+      if (data.blocks && data.blocks.length !== this.allBlocks.length) {
+        this.allBlocks = data.blocks;
+        this.allBlocks.reverse();
+        this.blocks = this.allBlocks.filter((block) => block.txs.length > 0);
         this.latestBlockHeight = data.chainHeight;
         const time = new Date().getTime() - start;
         logger.debug('Bisq dump processed in ' + time + ' ms (worker thread)');

backend/src/api/bisq/interfaces.ts

@@ -71,7 +71,7 @@ interface BisqScriptPubKey {
   addresses: string[];
   asm: string;
   hex: string;
-  reqSigs: number;
+  reqSigs?: number;
   type: string;
 }
 

backend/src/api/bisq/markets-api.ts

@@ -457,6 +457,30 @@ class BisqMarketsApi {
     }
   }
 
+  getVolumesByTime(time: number): MarketVolume[] {
+    const timestamp_from = new Date().getTime() / 1000 - time;
+    const timestamp_to = new Date().getTime() / 1000;
+
+    const trades = this.getTradesByCriteria(undefined, timestamp_to, timestamp_from,
+      undefined, undefined, undefined, 'asc', Number.MAX_SAFE_INTEGER);
+
+    const markets: any = {};
+
+    for (const trade of trades) {
+      if (!markets[trade._market]) {
+        markets[trade._market] = {
+          'volume': 0,
+          'num_trades': 0,
+        };
+      }
+
+      markets[trade._market]['volume'] += this.fiatCurrenciesIndexed[trade.currency] ? trade._tradeAmount : trade._tradeVolume;
+      markets[trade._market]['num_trades']++;
+    }
+
+    return markets;
+  }
+
   private getTradesSummarized(trades: TradesData[], timestamp_from: number, interval?: string): SummarizedIntervals {
     const intervals: any = {};
     const intervals_prices: any = {};

backend/src/api/bisq/markets.ts

@@ -6,7 +6,7 @@ import logger from '../../logger';
 
 class Bisq {
   private static FOLDER_WATCH_CHANGE_DETECTION_DEBOUNCE = 4000;
-  private static MARKET_JSON_PATH = config.BISQ_MARKETS.DATA_PATH;
+  private static MARKET_JSON_PATH = config.BISQ.DATA_PATH;
   private static MARKET_JSON_FILE_PATHS = {
     activeCryptoCurrency: '/active_crypto_currency_list.json',
     activeFiatCurrency: '/active_fiat_currency_list.json',
@@ -102,7 +102,7 @@ class Bisq {
         logger.debug('Bisq market data updated in ' + time + ' ms');
       }
     } catch (e) {
-      logger.err('loadBisqMarketDataDumpFile() error.' + e.message || e);
+      logger.err('loadBisqMarketDataDumpFile() error.' + (e instanceof Error ? e.message : e));
     }
   }
 

backend/src/api/bitcoin/bitcoin-api-abstract-factory.ts

@@ -6,8 +6,18 @@ export interface AbstractBitcoinApi {
   $getBlockHeightTip(): Promise<number>;
   $getTxIdsForBlock(hash: string): Promise<string[]>;
   $getBlockHash(height: number): Promise<string>;
+  $getBlockHeader(hash: string): Promise<string>;
   $getBlock(hash: string): Promise<IEsploraApi.Block>;
   $getAddress(address: string): Promise<IEsploraApi.Address>;
   $getAddressTransactions(address: string, lastSeenTxId: string): Promise<IEsploraApi.Transaction[]>;
   $getAddressPrefix(prefix: string): string[];
+  $sendRawTransaction(rawTransaction: string): Promise<string>;
+  $getOutspends(txId: string): Promise<IEsploraApi.Outspend[]>;
+}
+export interface BitcoinRpcCredentials {
+  host: string;
+  port: number;
+  user: string;
+  pass: string;
+  timeout: number;
 }

backend/src/api/bitcoin/bitcoin-api-factory.ts

@@ -3,16 +3,17 @@ import { AbstractBitcoinApi } from './bitcoin-api-abstract-factory';
 import EsploraApi from './esplora-api';
 import BitcoinApi from './bitcoin-api';
 import ElectrumApi from './electrum-api';
+import bitcoinClient from './bitcoin-client';
 
 function bitcoinApiFactory(): AbstractBitcoinApi {
   switch (config.MEMPOOL.BACKEND) {
     case 'esplora':
       return new EsploraApi();
     case 'electrum':
-      return new ElectrumApi();
+      return new ElectrumApi(bitcoinClient);
     case 'none':
     default:
-      return new BitcoinApi();
+      return new BitcoinApi(bitcoinClient);
   }
 }
 

backend/src/api/bitcoin/bitcoin-api.interface.ts

@@ -72,7 +72,7 @@ export namespace IBitcoinApi {
     time: number;                    //  (numeric) Same as blocktime
   }
 
-  interface Vin {
+  export interface Vin {
     txid?: string;                   //  (string) The transaction id
     vout?: number;                   //  (string)
     scriptSig?: {                    //  (json object) The script
@@ -82,28 +82,36 @@ export namespace IBitcoinApi {
     sequence: number;                //  (numeric) The script sequence number
     txinwitness?: string[];          //  (string) hex-encoded witness data
     coinbase?: string;
+    is_pegin?: boolean;              //  (boolean) Elements peg-in
   }
 
-  interface Vout {
+  export interface Vout {
     value: number;                   //  (numeric) The value in BTC
     n: number;                       //  (numeric) index
+    asset?: string;                  //  (string) Elements asset id
     scriptPubKey: {                  //  (json object)
       asm: string;                   //  (string) the asm
       hex: string;                   //  (string) the hex
-      reqSigs: number;               //  (numeric) The required sigs
+      reqSigs?: number;              //  (numeric) The required sigs
       type: string;                  //  (string) The type, eg 'pubkeyhash'
-      addresses: string[]            //  (string) bitcoin address
+      address?: string;              //  (string) bitcoin address
+      addresses?: string[];           //  (string) bitcoin addresses
+      pegout_chain?: string;         //  (string) Elements peg-out chain
+      pegout_addresses?: string[];   //  (string) Elements peg-out addresses
     };
   }
 
   export interface AddressInformation {
     isvalid: boolean;                //  (boolean) If the address is valid or not. If not, this is the only property returned.
+    isvalid_parent?: boolean;        //  (boolean) Elements only
     address: string;                 //  (string) The bitcoin address validated
     scriptPubKey: string;            //  (string) The hex-encoded scriptPubKey generated by the address
     isscript: boolean;               //  (boolean) If the key is a script
     iswitness: boolean;              //  (boolean) If the address is a witness
-    witness_version?: boolean;       //  (numeric, optional) The version number of the witness program
+    witness_version?: number;        //  (numeric, optional) The version number of the witness program
     witness_program: string;         //  (string, optional) The hex value of the witness program
+    confidential_key?: string;       //  (string) Elements only
+    unconfidential?: string;         //  (string) Elements only
   }
 
   export interface ChainTips {
@@ -113,4 +121,46 @@ export namespace IBitcoinApi {
     status: 'invalid' | 'headers-only' | 'valid-headers' | 'valid-fork' | 'active';
   }
 
+  export interface BlockchainInfo {
+    chain: number;                   // (string) current network name as defined in BIP70 (main, test, regtest)
+    blocks: number;                  // (numeric) the current number of blocks processed in the server
+    headers: number;                 // (numeric) the current number of headers we have validated
+    bestblockhash: string,           // (string) the hash of the currently best block
+    difficulty: number;              // (numeric) the current difficulty
+    mediantime: number;              // (numeric) median time for the current best block
+    verificationprogress: number;    // (numeric) estimate of verification progress [0..1]
+    initialblockdownload: boolean;   // (bool) (debug information) estimate of whether this node is in Initial Block Download mode.
+    chainwork: string                // (string) total amount of work in active chain, in hexadecimal
+    size_on_disk: number;            // (numeric) the estimated size of the block and undo files on disk
+    pruned: number;                  // (boolean) if the blocks are subject to pruning
+    pruneheight: number;             // (numeric) lowest-height complete block stored (only present if pruning is enabled)
+    automatic_pruning: number;       // (boolean) whether automatic pruning is enabled (only present if pruning is enabled)
+    prune_target_size: number;       // (numeric) the target size used by pruning (only present if automatic pruning is enabled)
+    softforks: SoftFork[];           // (array) status of softforks in progress
+    bip9_softforks: { [name: string]: Bip9SoftForks[] } // (object) status of BIP9 softforks in progress
+    warnings: string;                // (string) any network and blockchain warnings.
+  }
+
+  interface SoftFork {
+    id: string;                      // (string) name of softfork
+    version: number;                 // (numeric) block version
+    reject: {                        // (object) progress toward rejecting pre-softfork blocks
+      status: boolean;               // (boolean) true if threshold reached
+    },
+  }
+  interface Bip9SoftForks {
+    status: number;                  // (string) one of defined, started, locked_in, active, failed
+    bit: number;                     // (numeric) the bit (0-28) in the block version field used to signal this softfork (only for started status)
+    startTime: number;               // (numeric) the minimum median time past of a block at which the bit gains its meaning
+    timeout: number;                 // (numeric) the median time past of a block at which the deployment is considered failed if not yet locked in
+    since: number;                   // (numeric) height of the first block to which the status applies
+    statistics: {                    // (object) numeric statistics about BIP9 signalling for a softfork (only for started status)
+      period: number;                // (numeric) the length in blocks of the BIP9 signalling period 
+      threshold: number;             // (numeric) the number of blocks with the version bit set required to activate the feature 
+      elapsed: number;               // (numeric) the number of blocks elapsed since the beginning of the current period 
+      count: number;                 // (numeric) the number of blocks with the version bit set in the current period 
+      possible: boolean;             // (boolean) returns false if there are not enough blocks left in this period to pass activation threshold 
+    }
+  }
+
 }

backend/src/api/bitcoin/bitcoin-api.ts

@@ -1,5 +1,3 @@
-import config from '../../config';
-import * as bitcoin from '@mempool/bitcoin';
 import * as bitcoinjs from 'bitcoinjs-lib';
 import { AbstractBitcoinApi } from './bitcoin-api-abstract-factory';
 import { IBitcoinApi } from './bitcoin-api.interface';
@@ -10,16 +8,10 @@ import { TransactionExtended } from '../../mempool.interfaces';
 
 class BitcoinApi implements AbstractBitcoinApi {
   private rawMempoolCache: IBitcoinApi.RawMempool | null = null;
-  private bitcoindClient: any;
+  protected bitcoindClient: any;
 
-  constructor() {
-    this.bitcoindClient = new bitcoin.Client({
-      host: config.CORE_RPC.HOST,
-      port: config.CORE_RPC.PORT,
-      user: config.CORE_RPC.USERNAME,
-      pass: config.CORE_RPC.PASSWORD,
-      timeout: 60000,
-    });
+  constructor(bitcoinClient: any) {
+    this.bitcoindClient = bitcoinClient;
   }
 
   $getRawTransaction(txId: string, skipConversion = false, addPrevout = false): Promise<IEsploraApi.Transaction> {
@@ -56,10 +48,18 @@ class BitcoinApi implements AbstractBitcoinApi {
       .then((rpcBlock: IBitcoinApi.Block) => rpcBlock.tx);
   }
 
+  $getRawBlock(hash: string): Promise<string> {
+    return this.bitcoindClient.getBlock(hash, 0);
+  }
+
   $getBlockHash(height: number): Promise<string> {
     return this.bitcoindClient.getBlockHash(height);
   }
 
+  $getBlockHeader(hash: string): Promise<string> {
+    return this.bitcoindClient.getBlockHeader(hash, false);
+  }
+
   async $getBlock(hash: string): Promise<IEsploraApi.Block> {
     const foundBlock = blocks.getBlocks().find((block) => block.id === hash);
     if (foundBlock) {
@@ -98,6 +98,22 @@ class BitcoinApi implements AbstractBitcoinApi {
     return found;
   }
 
+  $sendRawTransaction(rawTransaction: string): Promise<string> {
+    return this.bitcoindClient.sendRawTransaction(rawTransaction);
+  }
+
+  async $getOutspends(txId: string): Promise<IEsploraApi.Outspend[]> {
+    const outSpends: IEsploraApi.Outspend[] = [];
+    const tx = await this.$getRawTransaction(txId, true, false);
+    for (let i = 0; i < tx.vout.length; i++) {
+      const txOut = await this.bitcoindClient.getTxOut(txId, i);
+      outSpends.push({
+        spent: txOut === null,
+      });
+    }
+    return outSpends;
+  }
+
   protected async $convertTransaction(transaction: IBitcoinApi.Transaction, addPrevout: boolean): Promise<IEsploraApi.Transaction> {
     let esploraTransaction: IEsploraApi.Transaction = {
       txid: transaction.txid,
@@ -115,7 +131,8 @@ class BitcoinApi implements AbstractBitcoinApi {
       return {
         value: vout.value * 100000000,
         scriptpubkey: vout.scriptPubKey.hex,
-        scriptpubkey_address: vout.scriptPubKey && vout.scriptPubKey.addresses ? vout.scriptPubKey.addresses[0] : '',
+        scriptpubkey_address: vout.scriptPubKey && vout.scriptPubKey.address ? vout.scriptPubKey.address
+          : vout.scriptPubKey.addresses ? vout.scriptPubKey.addresses[0] : '',
         scriptpubkey_asm: vout.scriptPubKey.asm ? this.convertScriptSigAsm(vout.scriptPubKey.asm) : '',
         scriptpubkey_type: this.translateScriptPubKeyType(vout.scriptPubKey.type),
       };
@@ -147,6 +164,9 @@ class BitcoinApi implements AbstractBitcoinApi {
       esploraTransaction = await this.$calculateFeeFromInputs(esploraTransaction, addPrevout);
     } else {
       esploraTransaction = await this.$appendMempoolFeeData(esploraTransaction);
+      if (addPrevout) {
+        esploraTransaction = await this.$calculateFeeFromInputs(esploraTransaction, addPrevout);
+      }
     }
 
     return esploraTransaction;
@@ -226,10 +246,6 @@ class BitcoinApi implements AbstractBitcoinApi {
       });
   }
 
-  protected $validateAddress(address: string): Promise<IBitcoinApi.AddressInformation> {
-    return this.bitcoindClient.validateAddress(address);
-  }
-
   private $getMempoolEntry(txid: string): Promise<IBitcoinApi.MempoolEntry> {
     return this.bitcoindClient.getMempoolEntry(txid);
   }
@@ -295,6 +311,11 @@ class BitcoinApi implements AbstractBitcoinApi {
       const witnessScript = vin.witness[vin.witness.length - 1];
       vin.inner_witnessscript_asm = this.convertScriptSigAsm(bitcoinjs.script.toASM(Buffer.from(witnessScript, 'hex')));
     }
+
+    if (vin.prevout.scriptpubkey_type === 'v1_p2tr' && vin.witness && vin.witness.length > 1) {
+      const witnessScript = vin.witness[vin.witness.length - 2];
+      vin.inner_witnessscript_asm = this.convertScriptSigAsm(bitcoinjs.script.toASM(Buffer.from(witnessScript, 'hex')));
+    }
   }
 
 }

backend/src/api/bitcoin/bitcoin-base.api.ts

@@ -1,45 +0,0 @@
-import config from '../../config';
-import * as bitcoin from '@mempool/bitcoin';
-import { IBitcoinApi } from './bitcoin-api.interface';
-
-class BitcoinBaseApi {
-  bitcoindClient: any;
-  bitcoindClientMempoolInfo: any;
-
-  constructor() {
-    this.bitcoindClient = new bitcoin.Client({
-      host: config.CORE_RPC.HOST,
-      port: config.CORE_RPC.PORT,
-      user: config.CORE_RPC.USERNAME,
-      pass: config.CORE_RPC.PASSWORD,
-      timeout: 60000,
-    });
-
-    if (config.CORE_RPC_MINFEE.ENABLED) {
-      this.bitcoindClientMempoolInfo = new bitcoin.Client({
-        host: config.CORE_RPC_MINFEE.HOST,
-        port: config.CORE_RPC_MINFEE.PORT,
-        user: config.CORE_RPC_MINFEE.USERNAME,
-        pass: config.CORE_RPC_MINFEE.PASSWORD,
-        timeout: 60000,
-      });
-    }
-  }
-
-  $getMempoolInfo(): Promise<IBitcoinApi.MempoolInfo> {
-    if (config.CORE_RPC_MINFEE.ENABLED) {
-      return Promise.all([
-        this.bitcoindClient.getMempoolInfo(),
-        this.bitcoindClientMempoolInfo.getMempoolInfo()
-      ]).then(([mempoolInfo, secondMempoolInfo]) => {
-        mempoolInfo.maxmempool = secondMempoolInfo.maxmempool;
-        mempoolInfo.mempoolminfee = secondMempoolInfo.mempoolminfee;
-        mempoolInfo.minrelaytxfee = secondMempoolInfo.minrelaytxfee;
-        return mempoolInfo;
-      });
-    }
-    return this.bitcoindClient.getMempoolInfo();
-  }
-}
-
-export default new BitcoinBaseApi();

backend/src/api/bitcoin/bitcoin-client.ts

@@ -0,0 +1,13 @@
+import config from '../../config';
+import * as bitcoin from '@mempool/bitcoin';
+import { BitcoinRpcCredentials } from './bitcoin-api-abstract-factory';
+
+const nodeRpcCredentials: BitcoinRpcCredentials = {
+  host: config.CORE_RPC.HOST,
+  port: config.CORE_RPC.PORT,
+  user: config.CORE_RPC.USERNAME,
+  pass: config.CORE_RPC.PASSWORD,
+  timeout: 60000,
+};
+
+export default new bitcoin.Client(nodeRpcCredentials);

backend/src/api/bitcoin/bitcoin-second-client.ts

@@ -0,0 +1,13 @@
+import config from '../../config';
+import * as bitcoin from '@mempool/bitcoin';
+import { BitcoinRpcCredentials } from './bitcoin-api-abstract-factory';
+
+const nodeRpcCredentials: BitcoinRpcCredentials = {
+  host: config.SECOND_CORE_RPC.HOST,
+  port: config.SECOND_CORE_RPC.PORT,
+  user: config.SECOND_CORE_RPC.USERNAME,
+  pass: config.SECOND_CORE_RPC.PASSWORD,
+  timeout: 60000,
+};
+
+export default new bitcoin.Client(nodeRpcCredentials);

backend/src/api/bitcoin/electrum-api.ts

@@ -1,10 +1,8 @@
 import config from '../../config';
 import { AbstractBitcoinApi } from './bitcoin-api-abstract-factory';
-import { IBitcoinApi } from './bitcoin-api.interface';
 import { IEsploraApi } from './esplora-api.interface';
 import { IElectrumApi } from './electrum-api.interface';
 import BitcoinApi from './bitcoin-api';
-import mempool from '../mempool';
 import logger from '../../logger';
 import * as ElectrumClient from '@mempool/electrum-client';
 import * as sha256 from 'crypto-js/sha256';
@@ -15,8 +13,8 @@ import memoryCache from '../memory-cache';
 class BitcoindElectrsApi extends BitcoinApi implements AbstractBitcoinApi {
   private electrumClient: any;
 
-  constructor() {
-    super();
+  constructor(bitcoinClient: any) {
+    super(bitcoinClient);
 
     const electrumConfig = { client: 'mempool-v2', version: '1.4' };
     const electrumPersistencePolicy = { retryPeriod: 10000, maxRetry: 1000, callback: null };
@@ -44,7 +42,7 @@ class BitcoindElectrsApi extends BitcoinApi implements AbstractBitcoinApi {
   }
 
   async $getAddress(address: string): Promise<IEsploraApi.Address> {
-    const addressInfo = await this.$validateAddress(address);
+    const addressInfo = await this.bitcoindClient.validateAddress(address);
     if (!addressInfo || !addressInfo.isvalid) {
       return ({
         'address': address,
@@ -89,16 +87,13 @@ class BitcoindElectrsApi extends BitcoinApi implements AbstractBitcoinApi {
         },
         'electrum': true,
       };
-    } catch (e) {
-      if (e === 'failed to get confirmed status') {
-        e = 'The number of transactions on this address exceeds the Electrum server limit';
-      }
-      throw new Error(e);
+    } catch (e: any) {
+      throw new Error(typeof e === 'string' ? e : e && e.message || e);
     }
   }
 
   async $getAddressTransactions(address: string, lastSeenTxId: string): Promise<IEsploraApi.Transaction[]> {
-    const addressInfo = await this.$validateAddress(address);
+    const addressInfo = await this.bitcoindClient.validateAddress(address);
     if (!addressInfo || !addressInfo.isvalid) {
      return [];
     }
@@ -126,12 +121,9 @@ class BitcoindElectrsApi extends BitcoinApi implements AbstractBitcoinApi {
       }
 
       return transactions;
-    } catch (e) {
+    } catch (e: any) {
       loadingIndicators.setProgress('address-' + address, 100);
-      if (e === 'failed to get confirmed status') {
-        e = 'The number of transactions on this address exceeds the Electrum server limit';
-      }
-      throw new Error(e);
+      throw new Error(typeof e === 'string' ? e : e && e.message || e);
     }
   }
 

backend/src/api/bitcoin/esplora-api.interface.ts

@@ -9,6 +9,7 @@ export namespace IEsploraApi {
     vin: Vin[];
     vout: Vout[];
     status: Status;
+    hex?: string;
   }
 
   export interface Recent {
@@ -112,9 +113,9 @@ export namespace IEsploraApi {
 
   export interface Outspend {
     spent: boolean;
-    txid: string;
-    vin: number;
-    status: Status;
+    txid?: string;
+    vin?: number;
+    status?: Status;
   }
 
   export interface Asset {

backend/src/api/bitcoin/esplora-api.ts

@@ -35,6 +35,11 @@ class ElectrsApi implements AbstractBitcoinApi {
       .then((response) => response.data);
   }
 
+  $getBlockHeader(hash: string): Promise<string> {
+    return axios.get<string>(config.ESPLORA.REST_API_URL + '/block/' + hash + '/header', this.axiosConfig)
+      .then((response) => response.data);
+  }
+
   $getBlock(hash: string): Promise<IEsploraApi.Block> {
     return axios.get<IEsploraApi.Block>(config.ESPLORA.REST_API_URL + '/block/' + hash, this.axiosConfig)
       .then((response) => response.data);
@@ -51,6 +56,14 @@ class ElectrsApi implements AbstractBitcoinApi {
   $getAddressPrefix(prefix: string): string[] {
     throw new Error('Method not implemented.');
   }
+
+  $sendRawTransaction(rawTransaction: string): Promise<string> {
+    throw new Error('Method not implemented.');
+  }
+
+  $getOutspends(): Promise<IEsploraApi.Outspend[]> {
+    throw new Error('Method not implemented.');
+  }
 }
 
 export default ElectrsApi;

backend/src/api/blocks.ts

@@ -6,12 +6,14 @@ import { BlockExtended, TransactionExtended } from '../mempool.interfaces';
 import { Common } from './common';
 import diskCache from './disk-cache';
 import transactionUtils from './transaction-utils';
+import bitcoinClient from './bitcoin/bitcoin-client';
 
 class Blocks {
-  private static INITIAL_BLOCK_AMOUNT = 8;
   private blocks: BlockExtended[] = [];
   private currentBlockHeight = 0;
+  private currentDifficulty = 0;
   private lastDifficultyAdjustmentTime = 0;
+  private previousDifficultyRetarget = 0;
   private newBlockCallbacks: ((block: BlockExtended, txIds: string[], transactions: TransactionExtended[]) => void)[] = [];
 
   constructor() { }
@@ -32,21 +34,32 @@ class Blocks {
     const blockHeightTip = await bitcoinApi.$getBlockHeightTip();
 
     if (this.blocks.length === 0) {
-      this.currentBlockHeight = blockHeightTip - Blocks.INITIAL_BLOCK_AMOUNT;
+      this.currentBlockHeight = blockHeightTip - config.MEMPOOL.INITIAL_BLOCKS_AMOUNT;
     } else {
       this.currentBlockHeight = this.blocks[this.blocks.length - 1].height;
     }
 
-    if (blockHeightTip - this.currentBlockHeight > Blocks.INITIAL_BLOCK_AMOUNT * 2) {
-      logger.info(`${blockHeightTip - this.currentBlockHeight} blocks since tip. Fast forwarding to the ${Blocks.INITIAL_BLOCK_AMOUNT} recent blocks`);
-      this.currentBlockHeight = blockHeightTip - Blocks.INITIAL_BLOCK_AMOUNT;
+    if (blockHeightTip - this.currentBlockHeight > config.MEMPOOL.INITIAL_BLOCKS_AMOUNT * 2) {
+      logger.info(`${blockHeightTip - this.currentBlockHeight} blocks since tip. Fast forwarding to the ${config.MEMPOOL.INITIAL_BLOCKS_AMOUNT} recent blocks`);
+      this.currentBlockHeight = blockHeightTip - config.MEMPOOL.INITIAL_BLOCKS_AMOUNT;
     }
 
     if (!this.lastDifficultyAdjustmentTime) {
-      const heightDiff = blockHeightTip % 2016;
-      const blockHash = await bitcoinApi.$getBlockHash(blockHeightTip - heightDiff);
-      const block = await bitcoinApi.$getBlock(blockHash);
-      this.lastDifficultyAdjustmentTime = block.timestamp;
+      const blockchainInfo = await bitcoinClient.getBlockchainInfo();
+      if (blockchainInfo.blocks === blockchainInfo.headers) {
+        const heightDiff = blockHeightTip % 2016;
+        const blockHash = await bitcoinApi.$getBlockHash(blockHeightTip - heightDiff);
+        const block = await bitcoinApi.$getBlock(blockHash);
+        this.lastDifficultyAdjustmentTime = block.timestamp;
+        this.currentDifficulty = block.difficulty;
+
+        const previousPeriodBlockHash = await bitcoinApi.$getBlockHash(blockHeightTip - heightDiff - 2016);
+        const previousPeriodBlock = await bitcoinApi.$getBlock(previousPeriodBlockHash);
+        this.previousDifficultyRetarget = (block.difficulty - previousPeriodBlock.difficulty) / previousPeriodBlock.difficulty * 100;
+        logger.debug(`Initial difficulty adjustment data set.`);
+      } else {
+        logger.debug(`Blockchain headers (${blockchainInfo.headers}) and blocks (${blockchainInfo.blocks}) not in sync. Waiting...`);
+      }
     }
 
     while (this.currentBlockHeight < blockHeightTip) {
@@ -76,7 +89,7 @@ class Blocks {
             const tx = await transactionUtils.$getTransactionExtended(txIds[i]);
             transactions.push(tx);
           } catch (e) {
-            logger.debug('Error fetching block tx: ' + e.message || e);
+            logger.debug('Error fetching block tx: ' + (e instanceof Error ? e.message : e));
             if (i === 0) {
               throw new Error('Failed to fetch Coinbase transaction: ' + txIds[i]);
             }
@@ -97,16 +110,18 @@ class Blocks {
       blockExtended.coinbaseTx = transactionUtils.stripCoinbaseTransaction(transactions[0]);
       transactions.shift();
       transactions.sort((a, b) => b.effectiveFeePerVsize - a.effectiveFeePerVsize);
-      blockExtended.medianFee = transactions.length > 1 ? Common.median(transactions.map((tx) => tx.effectiveFeePerVsize)) : 0;
-      blockExtended.feeRange = transactions.length > 1 ? Common.getFeesInRange(transactions, 8) : [0, 0];
+      blockExtended.medianFee = transactions.length > 0 ? Common.median(transactions.map((tx) => tx.effectiveFeePerVsize)) : 0;
+      blockExtended.feeRange = transactions.length > 0 ? Common.getFeesInRange(transactions, 8) : [0, 0];
 
       if (block.height % 2016 === 0) {
+        this.previousDifficultyRetarget = (block.difficulty - this.currentDifficulty) / this.currentDifficulty * 100;
         this.lastDifficultyAdjustmentTime = block.timestamp;
+        this.currentDifficulty = block.difficulty;
       }
 
       this.blocks.push(blockExtended);
-      if (this.blocks.length > Blocks.INITIAL_BLOCK_AMOUNT * 4) {
-        this.blocks = this.blocks.slice(-Blocks.INITIAL_BLOCK_AMOUNT * 4);
+      if (this.blocks.length > config.MEMPOOL.INITIAL_BLOCKS_AMOUNT * 4) {
+        this.blocks = this.blocks.slice(-config.MEMPOOL.INITIAL_BLOCKS_AMOUNT * 4);
       }
 
       if (this.newBlockCallbacks.length) {
@@ -122,6 +137,10 @@ class Blocks {
     return this.lastDifficultyAdjustmentTime;
   }
 
+  public getPreviousDifficultyRetarget(): number {
+    return this.previousDifficultyRetarget;
+  }
+
   public getCurrentBlockHeight(): number {
     return this.currentBlockHeight;
   }

backend/src/api/common.ts

@@ -1,6 +1,15 @@
 import { CpfpInfo, TransactionExtended, TransactionStripped } from '../mempool.interfaces';
-
+import config from '../config';
 export class Common {
+  static nativeAssetId = config.MEMPOOL.NETWORK === 'liquidtestnet' ?
+    '144c654344aa716d6f3abcc1ca90e5641e4e2a7f633bc09fe3baf64585819a49'
+  : '6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d';
+  static _isLiquid = config.MEMPOOL.NETWORK === 'liquid' || config.MEMPOOL.NETWORK === 'liquidtestnet';
+
+  static isLiquid(): boolean {
+    return this._isLiquid;
+  }
+
   static median(numbers: number[]) {
     let medianNr = 0;
     const numsLen = numbers.length;
@@ -105,7 +114,7 @@ export class Common {
       totalFees += tx.bestDescendant.fee;
     }
 
-    tx.effectiveFeePerVsize = totalFees / (totalWeight / 4);
+    tx.effectiveFeePerVsize = Math.max(Common.isLiquid() ? 0.1 : 1, totalFees / (totalWeight / 4));
     tx.cpfpChecked = true;
 
     return {

backend/src/api/database-migration.ts

@@ -0,0 +1,340 @@
+import { PoolConnection } from 'mysql2/promise';
+import config from '../config';
+import { DB } from '../database';
+import logger from '../logger';
+
+const sleep = (ms: number) => new Promise( res => setTimeout(res, ms));
+
+class DatabaseMigration {
+  private static currentVersion = 2;
+  private queryTimeout = 120000;
+  private statisticsAddedIndexed = false;
+
+  constructor() { }
+  /**
+   * Entry point
+   */
+  public async $initializeOrMigrateDatabase(): Promise<void> {
+    logger.info('MIGRATIONS: Running migrations');
+
+    await this.$printDatabaseVersion();
+
+    // First of all, if the `state` database does not exist, create it so we can track migration version
+    if (!await this.$checkIfTableExists('state')) {
+      logger.info('MIGRATIONS: `state` table does not exist. Creating it.');
+      try {
+        await this.$createMigrationStateTable();
+      } catch (e) {
+        logger.err('MIGRATIONS: Unable to create `state` table, aborting in 10 seconds. ' + e);
+        await sleep(10000);
+        process.exit(-1);
+      }
+      logger.info('MIGRATIONS: `state` table initialized.');
+    }
+
+    let databaseSchemaVersion = 0;
+    try {
+      databaseSchemaVersion = await this.$getSchemaVersionFromDatabase();
+    } catch (e) {
+      logger.err('MIGRATIONS: Unable to get current database migration version, aborting in 10 seconds. ' + e);
+      await sleep(10000);
+      process.exit(-1);
+    }
+
+    logger.info('MIGRATIONS: Current state.schema_version ' + databaseSchemaVersion);
+    logger.info('MIGRATIONS: Latest DatabaseMigration.version is ' + DatabaseMigration.currentVersion);
+    if (databaseSchemaVersion >= DatabaseMigration.currentVersion) {
+      logger.info('MIGRATIONS: Nothing to do.');
+      return;
+    }
+
+    // Now, create missing tables. Those queries cannot be wrapped into a transaction unfortunately
+    try {
+      await this.$createMissingTablesAndIndexes(databaseSchemaVersion);
+    } catch (e) {
+      logger.err('MIGRATIONS: Unable to create required tables, aborting in 10 seconds. ' + e);
+      await sleep(10000);
+      process.exit(-1);
+    }
+
+    if (DatabaseMigration.currentVersion > databaseSchemaVersion) {
+      logger.info('MIGRATIONS: Upgrading datababse schema');
+      try {
+        await this.$migrateTableSchemaFromVersion(databaseSchemaVersion);
+        logger.info(`MIGRATIONS: OK. Database schema have been migrated from version ${databaseSchemaVersion} to ${DatabaseMigration.currentVersion} (latest version)`);
+      } catch (e) {
+        logger.err('MIGRATIONS: Unable to migrate database, aborting. ' + e);
+      }
+    }
+
+    return;
+  }
+
+  /**
+   * Create all missing tables
+   */
+  private async $createMissingTablesAndIndexes(databaseSchemaVersion: number) {
+    await this.$setStatisticsAddedIndexedFlag(databaseSchemaVersion);
+
+    const connection = await DB.pool.getConnection();
+    try {
+      await this.$executeQuery(connection, this.getCreateElementsTableQuery(), await this.$checkIfTableExists('elements_pegs'));
+      await this.$executeQuery(connection, this.getCreateStatisticsQuery(), await this.$checkIfTableExists('statistics'));
+      if (databaseSchemaVersion < 2 && this.statisticsAddedIndexed === false) {
+        await this.$executeQuery(connection, `CREATE INDEX added ON statistics (added);`);
+      }
+      connection.release();
+    } catch (e) {
+      connection.release();
+      throw e;
+    }
+  }
+
+  /**
+   * Special case here for the `statistics` table - It appeared that somehow some dbs already had the `added` field indexed
+   * while it does not appear in previous schemas. The mariadb command "CREATE INDEX IF NOT EXISTS" is not supported on
+   * older mariadb version. Therefore we set a flag here in order to know if the index needs to be created or not before
+   * running the migration process
+   */
+  private async $setStatisticsAddedIndexedFlag(databaseSchemaVersion: number) {
+    if (databaseSchemaVersion >= 2) {
+      this.statisticsAddedIndexed = true;
+      return;
+    }
+
+    const connection = await DB.pool.getConnection();
+
+    try {
+      // We don't use "CREATE INDEX IF NOT EXISTS" because it is not supported on old mariadb version 5.X
+      const query = `SELECT COUNT(1) hasIndex FROM INFORMATION_SCHEMA.STATISTICS
+        WHERE table_schema=DATABASE() AND table_name='statistics' AND index_name='added';`;
+      const [rows] = await this.$executeQuery(connection, query, true);
+      if (rows[0].hasIndex === 0) {
+        logger.info('MIGRATIONS: `statistics.added` is not indexed');
+        this.statisticsAddedIndexed = false;
+      } else if (rows[0].hasIndex === 1) {
+        logger.info('MIGRATIONS: `statistics.added` is already indexed');
+        this.statisticsAddedIndexed = true;
+      }
+    } catch (e) {
+      // Should really never happen but just in case it fails, we just don't execute
+      // any query related to this indexing so it won't fail if the index actually already exists
+      logger.err('MIGRATIONS: Unable to check if `statistics.added` INDEX exist or not.');
+      this.statisticsAddedIndexed = true;
+    }
+
+    connection.release();
+  }
+
+  /**
+   * Small query execution wrapper to log all executed queries
+   */
+  private async $executeQuery(connection: PoolConnection, query: string, silent: boolean = false): Promise<any> {
+    if (!silent) {
+      logger.info('MIGRATIONS: Execute query:\n' + query);
+    }
+    return connection.query<any>({ sql: query, timeout: this.queryTimeout });
+  }
+
+  /**
+   * Check if 'table' exists in the database
+   */
+  private async $checkIfTableExists(table: string): Promise<boolean> {
+    const connection = await DB.pool.getConnection();
+    const query = `SELECT COUNT(*) FROM information_schema.tables WHERE table_schema = '${config.DATABASE.DATABASE}' AND TABLE_NAME = '${table}'`;
+    const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
+    connection.release();
+    return rows[0]['COUNT(*)'] === 1;
+  }
+
+  /**
+   * Get current database version
+   */
+  private async $getSchemaVersionFromDatabase(): Promise<number> {
+    const connection = await DB.pool.getConnection();
+    const query = `SELECT number FROM state WHERE name = 'schema_version';`;
+    const [rows] = await this.$executeQuery(connection, query, true);
+    connection.release();
+    return rows[0]['number'];
+  }
+
+  /**
+   * Create the `state` table
+   */
+  private async $createMigrationStateTable(): Promise<void> {
+    const connection = await DB.pool.getConnection();
+
+    try {
+      const query = `CREATE TABLE IF NOT EXISTS state (
+        name varchar(25) NOT NULL,
+        number int(11) NULL,
+        string varchar(100) NULL,
+        CONSTRAINT name_unique UNIQUE (name)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8;`;
+      await this.$executeQuery(connection, query);
+
+      // Set initial values
+      await this.$executeQuery(connection, `INSERT INTO state VALUES('schema_version', 0, NULL);`);
+      await this.$executeQuery(connection, `INSERT INTO state VALUES('last_elements_block', 0, NULL);`);
+
+      connection.release();
+    } catch (e) {
+      connection.release();
+      throw e;
+    }
+  }
+
+  /**
+   * We actually execute the migrations queries here
+   */
+  private async $migrateTableSchemaFromVersion(version: number): Promise<void> {
+    const transactionQueries: string[] = [];
+    for (const query of this.getMigrationQueriesFromVersion(version)) {
+      transactionQueries.push(query);
+    }
+    transactionQueries.push(this.getUpdateToLatestSchemaVersionQuery());
+
+    const connection = await DB.pool.getConnection();
+    try {
+      await this.$executeQuery(connection, 'START TRANSACTION;');
+      await this.$executeQuery(connection, 'SET autocommit = 0;');
+      for (const query of transactionQueries) {
+        await this.$executeQuery(connection, query);
+      }
+      await this.$executeQuery(connection, 'COMMIT;');
+
+      connection.release();
+    } catch (e) {
+      await this.$executeQuery(connection, 'ROLLBACK;');
+      connection.release();
+      throw e;
+    }
+  }
+
+  /**
+   * Generate migration queries based on schema version
+   */
+  private getMigrationQueriesFromVersion(version: number): string[] {
+    const queries: string[] = [];
+
+    if (version < 1) {
+      if (config.MEMPOOL.NETWORK !== 'liquid' && config.MEMPOOL.NETWORK !== 'liquidtestnet') {
+        queries.push(this.getShiftStatisticsQuery());
+      }
+    }
+
+    return queries;
+  }
+
+  /**
+   * Save the schema version in the database
+   */
+  private getUpdateToLatestSchemaVersionQuery(): string {
+    return `UPDATE state SET number = ${DatabaseMigration.currentVersion} WHERE name = 'schema_version';`;
+  }
+
+  /**
+   * Print current database version
+   */
+  private async $printDatabaseVersion() {
+    const connection = await DB.pool.getConnection();
+    try {
+      const [rows] = await this.$executeQuery(connection, 'SELECT VERSION() as version;', true);
+      logger.info(`MIGRATIONS: Database engine version '${rows[0].version}'`);
+    } catch (e) {
+      logger.info(`MIGRATIONS: Could not fetch database engine version. ` + e);
+    }
+    connection.release();
+  }
+
+  // Couple of wrappers to clean the main logic
+  private getShiftStatisticsQuery(): string {
+    return `UPDATE statistics SET
+      vsize_1 = vsize_1 + vsize_2, vsize_2 = vsize_3,
+      vsize_3 = vsize_4, vsize_4 = vsize_5,
+      vsize_5 = vsize_6, vsize_6 = vsize_8,
+      vsize_8 = vsize_10, vsize_10 = vsize_12,
+      vsize_12 = vsize_15, vsize_15 = vsize_20,
+      vsize_20 = vsize_30, vsize_30 = vsize_40,
+      vsize_40 = vsize_50, vsize_50 = vsize_60,
+      vsize_60 = vsize_70, vsize_70 = vsize_80,
+      vsize_80 = vsize_90, vsize_90 = vsize_100,
+      vsize_100 = vsize_125, vsize_125 = vsize_150,
+      vsize_150 = vsize_175, vsize_175 = vsize_200,
+      vsize_200 = vsize_250, vsize_250 = vsize_300,
+      vsize_300 = vsize_350, vsize_350 = vsize_400,
+      vsize_400 = vsize_500, vsize_500 = vsize_600,
+      vsize_600 = vsize_700, vsize_700 = vsize_800,
+      vsize_800 = vsize_900, vsize_900 = vsize_1000,
+      vsize_1000 = vsize_1200, vsize_1200 = vsize_1400,
+      vsize_1400 = vsize_1800, vsize_1800 = vsize_2000, vsize_2000 = 0;`;
+  }
+
+  private getCreateStatisticsQuery(): string {
+    return `CREATE TABLE IF NOT EXISTS statistics (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      added datetime NOT NULL,
+      unconfirmed_transactions int(11) UNSIGNED NOT NULL,
+      tx_per_second float UNSIGNED NOT NULL,
+      vbytes_per_second int(10) UNSIGNED NOT NULL,
+      mempool_byte_weight int(10) UNSIGNED NOT NULL,
+      fee_data longtext NOT NULL,
+      total_fee double UNSIGNED NOT NULL,
+      vsize_1 int(11) NOT NULL,
+      vsize_2 int(11) NOT NULL,
+      vsize_3 int(11) NOT NULL,
+      vsize_4 int(11) NOT NULL,
+      vsize_5 int(11) NOT NULL,
+      vsize_6 int(11) NOT NULL,
+      vsize_8 int(11) NOT NULL,
+      vsize_10 int(11) NOT NULL,
+      vsize_12 int(11) NOT NULL,
+      vsize_15 int(11) NOT NULL,
+      vsize_20 int(11) NOT NULL,
+      vsize_30 int(11) NOT NULL,
+      vsize_40 int(11) NOT NULL,
+      vsize_50 int(11) NOT NULL,
+      vsize_60 int(11) NOT NULL,
+      vsize_70 int(11) NOT NULL,
+      vsize_80 int(11) NOT NULL,
+      vsize_90 int(11) NOT NULL,
+      vsize_100 int(11) NOT NULL,
+      vsize_125 int(11) NOT NULL,
+      vsize_150 int(11) NOT NULL,
+      vsize_175 int(11) NOT NULL,
+      vsize_200 int(11) NOT NULL,
+      vsize_250 int(11) NOT NULL,
+      vsize_300 int(11) NOT NULL,
+      vsize_350 int(11) NOT NULL,
+      vsize_400 int(11) NOT NULL,
+      vsize_500 int(11) NOT NULL,
+      vsize_600 int(11) NOT NULL,
+      vsize_700 int(11) NOT NULL,
+      vsize_800 int(11) NOT NULL,
+      vsize_900 int(11) NOT NULL,
+      vsize_1000 int(11) NOT NULL,
+      vsize_1200 int(11) NOT NULL,
+      vsize_1400 int(11) NOT NULL,
+      vsize_1600 int(11) NOT NULL,
+      vsize_1800 int(11) NOT NULL,
+      vsize_2000 int(11) NOT NULL,
+      CONSTRAINT PRIMARY KEY (id)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;`;
+  }
+
+  private getCreateElementsTableQuery(): string {
+    return `CREATE TABLE IF NOT EXISTS elements_pegs (
+      block int(11) NOT NULL,
+      datetime int(11) NOT NULL,
+      amount bigint(20) NOT NULL,
+      txid varchar(65) NOT NULL,
+      txindex int(11) NOT NULL,
+      bitcoinaddress varchar(100) NOT NULL,
+      bitcointxid varchar(65) NOT NULL,
+      bitcoinindex int(11) NOT NULL,
+      final_tx int(11) NOT NULL
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;`;
+  }
+}
+
+export default new DatabaseMigration();

backend/src/api/disk-cache.ts

@@ -52,7 +52,7 @@ class DiskCache {
       logger.debug('Mempool and blocks data saved to disk cache');
       this.isWritingCache = false;
     } catch (e) {
-      logger.warn('Error writing to cache file: ' + e.message || e);
+      logger.warn('Error writing to cache file: ' + (e instanceof Error ? e.message : e));
       this.isWritingCache = false;
     }
   }

backend/src/api/fee-api.ts

@@ -1,12 +1,13 @@
 import config from '../config';
 import { MempoolBlock } from '../mempool.interfaces';
+import { Common } from './common';
 import mempool from './mempool';
 import projectedBlocks from './mempool-blocks';
 
 class FeeApi {
   constructor() { }
 
-  defaultFee = config.MEMPOOL.NETWORK === 'liquid' ? 0.1 : 1;
+  defaultFee = Common.isLiquid() ? 0.1 : 1;
 
   public getRecommendedFee() {
     const pBlocks = projectedBlocks.getMempoolBlocks();
@@ -43,7 +44,7 @@ class FeeApi {
       const multiplier = (pBlock.blockVSize - 500000) / 500000;
       return Math.max(Math.round(useFee * multiplier), this.defaultFee);
     }
-    return Math.round(useFee);
+    return Math.ceil(useFee);
   }
 }
 

backend/src/api/fiat-conversion.ts

@@ -1,6 +1,7 @@
 import logger from '../logger';
 import axios from 'axios';
 import { IConversionRates } from '../mempool.interfaces';
+import config from '../config';
 
 class FiatConversion {
   private conversionRates: IConversionRates = {
@@ -16,7 +17,7 @@ class FiatConversion {
 
   public startService() {
     logger.info('Starting currency rates service');
-    setInterval(this.updateCurrency.bind(this), 1000 * 60 * 60);
+    setInterval(this.updateCurrency.bind(this), 1000 * config.MEMPOOL.PRICE_FEED_UPDATE_INTERVAL);
     this.updateCurrency();
   }
 
@@ -35,7 +36,7 @@ class FiatConversion {
         this.ratesChangedCallback(this.conversionRates);
       }
     } catch (e) {
-      logger.err('Error updating fiat conversion rates: ' + e);
+      logger.err('Error updating fiat conversion rates: ' + (e instanceof Error ? e.message : e));
     }
   }
 }

backend/src/api/liquid/elements-parser.ts

@@ -0,0 +1,111 @@
+import { IBitcoinApi } from '../bitcoin/bitcoin-api.interface';
+import bitcoinClient from '../bitcoin/bitcoin-client';
+import bitcoinSecondClient from '../bitcoin/bitcoin-second-client';
+import { Common } from '../common';
+import { DB } from '../../database';
+import logger from '../../logger';
+
+class ElementsParser {
+  private isRunning = false;
+
+  constructor() { }
+
+  public async $parse() {
+    if (this.isRunning) {
+      return;
+    }
+    try {
+      this.isRunning = true;
+      const result = await bitcoinClient.getChainTips();
+      const tip = result[0].height;
+      const latestBlockHeight = await this.$getLatestBlockHeightFromDatabase();
+      for (let height = latestBlockHeight + 1; height <= tip; height++) {
+        const blockHash: IBitcoinApi.ChainTips = await bitcoinClient.getBlockHash(height);
+        const block: IBitcoinApi.Block = await bitcoinClient.getBlock(blockHash, 2);
+        await this.$parseBlock(block);
+        await this.$saveLatestBlockToDatabase(block.height);
+      }
+      this.isRunning = false;
+    } catch (e) {
+      this.isRunning = false;
+      throw new Error(e instanceof Error ? e.message : 'Error');
+    }
+  }
+
+  public async $getPegDataByMonth(): Promise<any> {
+    const connection = await DB.pool.getConnection();
+    const query = `SELECT SUM(amount) AS amount, DATE_FORMAT(FROM_UNIXTIME(datetime), '%Y-%m-01') AS date FROM elements_pegs GROUP BY DATE_FORMAT(FROM_UNIXTIME(datetime), '%Y%m')`;
+    const [rows] = await connection.query<any>(query);
+    connection.release();
+    return rows;
+  }
+
+  protected async $parseBlock(block: IBitcoinApi.Block) {
+    for (const tx of block.tx) {
+      await this.$parseInputs(tx, block);
+      await this.$parseOutputs(tx, block);
+    }
+  }
+
+  protected async $parseInputs(tx: IBitcoinApi.Transaction, block: IBitcoinApi.Block) {
+    for (const [index, input] of tx.vin.entries()) {
+      if (input.is_pegin) {
+        await this.$parsePegIn(input, index, tx.txid, block);
+      }
+    }
+  }
+
+  protected async $parsePegIn(input: IBitcoinApi.Vin, vindex: number, txid: string, block: IBitcoinApi.Block) {
+    const bitcoinTx: IBitcoinApi.Transaction = await bitcoinSecondClient.getRawTransaction(input.txid, true);
+    const prevout = bitcoinTx.vout[input.vout || 0];
+    const outputAddress = prevout.scriptPubKey.address || (prevout.scriptPubKey.addresses && prevout.scriptPubKey.addresses[0]) || '';
+    await this.$savePegToDatabase(block.height, block.time, prevout.value * 100000000, txid, vindex,
+      outputAddress, bitcoinTx.txid, prevout.n, 1);
+  }
+
+  protected async $parseOutputs(tx: IBitcoinApi.Transaction, block: IBitcoinApi.Block) {
+    for (const output of tx.vout) {
+      if (output.scriptPubKey.pegout_chain) {
+        await this.$savePegToDatabase(block.height, block.time, 0 - output.value * 100000000, tx.txid, output.n,
+          (output.scriptPubKey.pegout_addresses && output.scriptPubKey.pegout_addresses[0] || ''), '', 0, 0);
+      }
+      if (!output.scriptPubKey.pegout_chain && output.scriptPubKey.type === 'nulldata'
+        && output.value && output.value > 0 && output.asset && output.asset === Common.nativeAssetId) {
+        await this.$savePegToDatabase(block.height, block.time, 0 - output.value * 100000000, tx.txid, output.n,
+          (output.scriptPubKey.pegout_addresses && output.scriptPubKey.pegout_addresses[0] || ''), '', 0, 1);
+      }
+    }
+  }
+
+  protected async $savePegToDatabase(height: number, blockTime: number, amount: number, txid: string,
+    txindex: number, bitcoinaddress: string, bitcointxid: string, bitcoinindex: number, final_tx: number): Promise<void> {
+    const connection = await DB.pool.getConnection();
+    const query = `INSERT INTO elements_pegs(
+        block, datetime, amount, txid, txindex, bitcoinaddress, bitcointxid, bitcoinindex, final_tx
+      ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)`;
+
+    const params: (string | number)[] = [
+      height, blockTime, amount, txid, txindex, bitcoinaddress, bitcointxid, bitcoinindex, final_tx
+    ];
+    await connection.query(query, params);
+    connection.release();
+    logger.debug(`Saved L-BTC peg from block height #${height} with TXID ${txid}.`);
+  }
+
+  protected async $getLatestBlockHeightFromDatabase(): Promise<number> {
+    const connection = await DB.pool.getConnection();
+    const query = `SELECT number FROM state WHERE name = 'last_elements_block'`;
+    const [rows] = await connection.query<any>(query);
+    connection.release();
+    return rows[0]['number'];
+  }
+
+  protected async $saveLatestBlockToDatabase(blockHeight: number) {
+    const connection = await DB.pool.getConnection();
+    const query = `UPDATE state SET number = ? WHERE name = 'last_elements_block'`;
+    await connection.query<any>(query, [blockHeight]);
+    connection.release();
+  }
+}
+
+export default new ElementsParser();

backend/src/api/liquid/icons.ts

@@ -0,0 +1,39 @@
+import * as fs from 'fs';
+import config from '../../config';
+import logger from '../../logger';
+
+class Icons {
+  private static FILE_NAME = './icons.json';
+  private iconIds: string[] = [];
+  private icons: { [assetId: string]: string; } = {};
+
+  constructor() {}
+
+  public loadIcons() {
+    if (!fs.existsSync(Icons.FILE_NAME)) {
+      logger.warn(`${Icons.FILE_NAME} does not exist. No Liquid icons loaded.`);
+      return;
+    }
+    const cacheData = fs.readFileSync(Icons.FILE_NAME, 'utf8');
+    this.icons = JSON.parse(cacheData);
+
+    for (const i in this.icons) {
+      this.iconIds.push(i);
+    }
+    logger.debug(`Liquid icons has been loaded.`);
+  }
+
+  public getIconByAssetId(assetId: string): Buffer | undefined {
+    const icon = this.icons[assetId];
+    if (icon) {
+      return Buffer.from(icon, 'base64');
+    }
+  }
+
+  public getAllIconIds() {
+    return this.iconIds;
+  }
+
+}
+
+export default new Icons();

backend/src/api/mempool-blocks.ts

@@ -4,7 +4,6 @@ import { Common } from './common';
 import config from '../config';
 
 class MempoolBlocks {
-  private static DEFAULT_PROJECTED_BLOCKS_AMOUNT = 8;
   private mempoolBlocks: MempoolBlockWithTransactions[] = [];
 
   constructor() {}
@@ -72,29 +71,30 @@ class MempoolBlocks {
 
   private calculateMempoolBlocks(transactionsSorted: TransactionExtended[]): MempoolBlockWithTransactions[] {
     const mempoolBlocks: MempoolBlockWithTransactions[] = [];
-    let blockVSize = 0;
+    let blockWeight = 0;
     let blockSize = 0;
     let transactions: TransactionExtended[] = [];
     transactionsSorted.forEach((tx) => {
-      if (blockVSize + tx.vsize <= 1000000 || mempoolBlocks.length === MempoolBlocks.DEFAULT_PROJECTED_BLOCKS_AMOUNT - 1) {
-        blockVSize += tx.vsize;
+      if (blockWeight + tx.weight <= config.MEMPOOL.BLOCK_WEIGHT_UNITS
+        || mempoolBlocks.length === config.MEMPOOL.MEMPOOL_BLOCKS_AMOUNT - 1) {
+        blockWeight += tx.weight;
         blockSize += tx.size;
         transactions.push(tx);
       } else {
-        mempoolBlocks.push(this.dataToMempoolBlocks(transactions, blockSize, blockVSize, mempoolBlocks.length));
-        blockVSize = tx.vsize;
+        mempoolBlocks.push(this.dataToMempoolBlocks(transactions, blockSize, blockWeight, mempoolBlocks.length));
+        blockWeight = tx.weight;
         blockSize = tx.size;
         transactions = [tx];
       }
     });
     if (transactions.length) {
-      mempoolBlocks.push(this.dataToMempoolBlocks(transactions, blockSize, blockVSize, mempoolBlocks.length));
+      mempoolBlocks.push(this.dataToMempoolBlocks(transactions, blockSize, blockWeight, mempoolBlocks.length));
     }
     return mempoolBlocks;
   }
 
   private dataToMempoolBlocks(transactions: TransactionExtended[],
-    blockSize: number, blockVSize: number, blocksIndex: number): MempoolBlockWithTransactions {
+    blockSize: number, blockWeight: number, blocksIndex: number): MempoolBlockWithTransactions {
     let rangeLength = 4;
     if (blocksIndex === 0) {
       rangeLength = 8;
@@ -106,7 +106,7 @@ class MempoolBlocks {
     }
     return {
       blockSize: blockSize,
-      blockVSize: blockVSize,
+      blockVSize: blockWeight / 4,
       nTx: transactions.length,
       totalFees: transactions.reduce((acc, cur) => acc + cur.fee, 0),
       medianFee: Common.percentile(transactions.map((tx) => tx.effectiveFeePerVsize), config.MEMPOOL.RECOMMENDED_FEE_PERCENTILE),

backend/src/api/mempool.ts

@@ -5,8 +5,9 @@ import logger from '../logger';
 import { Common } from './common';
 import transactionUtils from './transaction-utils';
 import { IBitcoinApi } from './bitcoin/bitcoin-api.interface';
-import bitcoinBaseApi from './bitcoin/bitcoin-base.api';
 import loadingIndicators from './loading-indicators';
+import bitcoinClient from './bitcoin/bitcoin-client';
+import bitcoinSecondClient from './bitcoin/bitcoin-second-client';
 
 class Mempool {
   private static WEBSOCKET_REFRESH_RATE_MS = 10000;
@@ -61,7 +62,7 @@ class Mempool {
   }
 
   public async $updateMemPoolInfo() {
-    this.mempoolInfo = await bitcoinBaseApi.$getMempoolInfo();
+    this.mempoolInfo = await this.$getMempoolInfo();
   }
 
   public getMempoolInfo(): IBitcoinApi.MempoolInfo {
@@ -124,7 +125,7 @@ class Mempool {
           }
           newTransactions.push(transaction);
         } catch (e) {
-          logger.debug('Error finding transaction in mempool: ' + e.message || e);
+          logger.debug('Error finding transaction in mempool: ' + (e instanceof Error ? e.message : e));
         }
       }
 
@@ -205,6 +206,21 @@ class Mempool {
       }
     }
   }
+
+  private $getMempoolInfo() {
+    if (config.MEMPOOL.USE_SECOND_NODE_FOR_MINFEE) {
+      return Promise.all([
+        bitcoinClient.getMempoolInfo(),
+        bitcoinSecondClient.getMempoolInfo()
+      ]).then(([mempoolInfo, secondMempoolInfo]) => {
+        mempoolInfo.maxmempool = secondMempoolInfo.maxmempool;
+        mempoolInfo.mempoolminfee = secondMempoolInfo.mempoolminfee;
+        mempoolInfo.minrelaytxfee = secondMempoolInfo.minrelaytxfee;
+        return mempoolInfo;
+      });
+    }
+    return bitcoinClient.getMempoolInfo();
+  }
 }
 
 export default new Mempool();

backend/src/api/statistics.ts

@@ -3,14 +3,13 @@ import { DB } from '../database';
 import logger from '../logger';
 
 import { Statistic, TransactionExtended, OptimizedStatistic } from '../mempool.interfaces';
+import config from '../config';
+import { Common } from './common';
 
 class Statistics {
   protected intervalTimer: NodeJS.Timer | undefined;
   protected newStatisticsEntryCallback: ((stats: OptimizedStatistic) => void) | undefined;
   protected queryTimeout = 120000;
-  protected cache: { [date: string]: OptimizedStatistic[] } = {
-    '24h': [], '1w': [], '1m': [], '3m': [], '6m': [], '1y': [],
-  };
 
   public setNewStatisticsEntryCallback(fn: (stats: OptimizedStatistic) => void) {
     this.newStatisticsEntryCallback = fn;
@@ -32,23 +31,6 @@ class Statistics {
         this.runStatistics();
       }, 1 * 60 * 1000);
     }, difference);
-
-    this.createCache();
-    setInterval(this.createCache.bind(this), 600000);
-  }
-
-  public getCache() {
-    return this.cache;
-  }
-
-  private async createCache() {
-    this.cache['24h'] = await this.$list24H();
-    this.cache['1w'] = await this.$list1W();
-    this.cache['1m'] = await this.$list1M();
-    this.cache['3m'] = await this.$list3M();
-    this.cache['6m'] = await this.$list6M();
-    this.cache['1y'] = await this.$list1Y();
-    logger.debug('Statistics cache created');
   }
 
   private async runStatistics(): Promise<void> {
@@ -82,10 +64,15 @@ class Statistics {
       250, 300, 350, 400, 500, 600, 700, 800, 900, 1000, 1200, 1400, 1600, 1800, 2000];
 
     const weightVsizeFees: { [feePerWU: number]: number } = {};
+    const lastItem = logFees.length - 1;
 
     memPoolArray.forEach((transaction) => {
       for (let i = 0; i < logFees.length; i++) {
-        if ((logFees[i] === 2000 && transaction.effectiveFeePerVsize >= 2000) || transaction.effectiveFeePerVsize <= logFees[i]) {
+        if (
+          (Common.isLiquid() && (i === lastItem || transaction.effectiveFeePerVsize * 10 < logFees[i + 1]))
+          ||
+          (!Common.isLiquid() && (i === lastItem || transaction.effectiveFeePerVsize < logFees[i + 1]))
+        ) {
           if (weightVsizeFees[logFees[i]]) {
             weightVsizeFees[logFees[i]] += transaction.vsize;
           } else {
@@ -255,14 +242,62 @@ class Statistics {
       connection.release();
       return result.insertId;
     } catch (e) {
-      logger.err('$create() error' + e.message || e);
+      logger.err('$create() error' + (e instanceof Error ? e.message : e));
     }
   }
 
-  private getQueryForDays(div: number) {
-    return `SELECT id, added, unconfirmed_transactions,
-      tx_per_second,
-      vbytes_per_second,
+  private getQueryForDaysAvg(div: number, interval: string) {
+    return `SELECT
+      UNIX_TIMESTAMP(added) as added,
+      CAST(avg(vbytes_per_second) as DOUBLE) as vbytes_per_second,
+      CAST(avg(vsize_1) as DOUBLE) as vsize_1,
+      CAST(avg(vsize_2) as DOUBLE) as vsize_2,
+      CAST(avg(vsize_3) as DOUBLE) as vsize_3,
+      CAST(avg(vsize_4) as DOUBLE) as vsize_4,
+      CAST(avg(vsize_5) as DOUBLE) as vsize_5,
+      CAST(avg(vsize_6) as DOUBLE) as vsize_6,
+      CAST(avg(vsize_8) as DOUBLE) as vsize_8,
+      CAST(avg(vsize_10) as DOUBLE) as vsize_10,
+      CAST(avg(vsize_12) as DOUBLE) as vsize_12,
+      CAST(avg(vsize_15) as DOUBLE) as vsize_15,
+      CAST(avg(vsize_20) as DOUBLE) as vsize_20,
+      CAST(avg(vsize_30) as DOUBLE) as vsize_30,
+      CAST(avg(vsize_40) as DOUBLE) as vsize_40,
+      CAST(avg(vsize_50) as DOUBLE) as vsize_50,
+      CAST(avg(vsize_60) as DOUBLE) as vsize_60,
+      CAST(avg(vsize_70) as DOUBLE) as vsize_70,
+      CAST(avg(vsize_80) as DOUBLE) as vsize_80,
+      CAST(avg(vsize_90) as DOUBLE) as vsize_90,
+      CAST(avg(vsize_100) as DOUBLE) as vsize_100,
+      CAST(avg(vsize_125) as DOUBLE) as vsize_125,
+      CAST(avg(vsize_150) as DOUBLE) as vsize_150,
+      CAST(avg(vsize_175) as DOUBLE) as vsize_175,
+      CAST(avg(vsize_200) as DOUBLE) as vsize_200,
+      CAST(avg(vsize_250) as DOUBLE) as vsize_250,
+      CAST(avg(vsize_300) as DOUBLE) as vsize_300,
+      CAST(avg(vsize_350) as DOUBLE) as vsize_350,
+      CAST(avg(vsize_400) as DOUBLE) as vsize_400,
+      CAST(avg(vsize_500) as DOUBLE) as vsize_500,
+      CAST(avg(vsize_600) as DOUBLE) as vsize_600,
+      CAST(avg(vsize_700) as DOUBLE) as vsize_700,
+      CAST(avg(vsize_800) as DOUBLE) as vsize_800,
+      CAST(avg(vsize_900) as DOUBLE) as vsize_900,
+      CAST(avg(vsize_1000) as DOUBLE) as vsize_1000,
+      CAST(avg(vsize_1200) as DOUBLE) as vsize_1200,
+      CAST(avg(vsize_1400) as DOUBLE) as vsize_1400,
+      CAST(avg(vsize_1600) as DOUBLE) as vsize_1600,
+      CAST(avg(vsize_1800) as DOUBLE) as vsize_1800,
+      CAST(avg(vsize_2000) as DOUBLE) as vsize_2000 \
+      FROM statistics \
+      WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW() \
+      GROUP BY UNIX_TIMESTAMP(added) DIV ${div} \
+      ORDER BY statistics.added DESC;`;
+  }
+
+  private getQueryForDays(div: number, interval: string) {
+    return `SELECT
+      UNIX_TIMESTAMP(added) as added,
+      CAST(avg(vbytes_per_second) as DOUBLE) as vbytes_per_second,
       vsize_1,
       vsize_2,
       vsize_3,
@@ -300,32 +335,36 @@ class Statistics {
       vsize_1400,
       vsize_1600,
       vsize_1800,
-      vsize_2000 FROM statistics GROUP BY UNIX_TIMESTAMP(added) DIV ${div} ORDER BY id DESC LIMIT 480`;
+      vsize_2000 \
+      FROM statistics \
+      WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW() \
+      GROUP BY UNIX_TIMESTAMP(added) DIV ${div} \
+      ORDER BY statistics.added DESC;`;
   }
 
-  public async $get(id: number): Promise<OptimizedStatistic | undefined> {
+  private async $get(id: number): Promise<OptimizedStatistic | undefined> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = `SELECT * FROM statistics WHERE id = ?`;
+      const query = `SELECT *, UNIX_TIMESTAMP(added) as added FROM statistics WHERE id = ?`;
       const [rows] = await connection.query<any>(query, [id]);
       connection.release();
       if (rows[0]) {
         return this.mapStatisticToOptimizedStatistic([rows[0]])[0];
       }
     } catch (e) {
-      logger.err('$list2H() error' + e.message || e);
+      logger.err('$list2H() error' + (e instanceof Error ? e.message : e));
     }
   }
 
   public async $list2H(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = `SELECT * FROM statistics ORDER BY id DESC LIMIT 120`;
+      const query = `SELECT *, UNIX_TIMESTAMP(added) as added FROM statistics ORDER BY statistics.added DESC LIMIT 120`;
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
     } catch (e) {
-      logger.err('$list2H() error' + e.message || e);
+      logger.err('$list2H() error' + (e instanceof Error ? e.message : e));
       return [];
     }
   }
@@ -333,12 +372,12 @@ class Statistics {
   public async $list24H(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(180);
+      const query = `SELECT *, UNIX_TIMESTAMP(added) as added FROM statistics ORDER BY statistics.added DESC LIMIT 1440`;
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
     } catch (e) {
-      logger.err('$list24h() error' + e.message || e);
+      logger.err('$list24h() error' + (e instanceof Error ? e.message : e));
       return [];
     }
   }
@@ -346,12 +385,12 @@ class Statistics {
   public async $list1W(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(1260);
+      const query = this.getQueryForDaysAvg(300, '1 WEEK'); // 5m interval
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
     } catch (e) {
-      logger.err('$list1W() error' + e);
+      logger.err('$list1W() error' + (e instanceof Error ? e.message : e));
       return [];
     }
   }
@@ -359,12 +398,12 @@ class Statistics {
   public async $list1M(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(5040);
+      const query = this.getQueryForDaysAvg(1800, '1 MONTH'); // 30m interval
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
     } catch (e) {
-      logger.err('$list1M() error' + e);
+      logger.err('$list1M() error' + (e instanceof Error ? e.message : e));
       return [];
     }
   }
@@ -372,12 +411,12 @@ class Statistics {
   public async $list3M(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(15120);
+      const query = this.getQueryForDaysAvg(7200, '3 MONTH'); // 2h interval
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
     } catch (e) {
-      logger.err('$list3M() error' + e);
+      logger.err('$list3M() error' + (e instanceof Error ? e.message : e));
       return [];
     }
   }
@@ -385,12 +424,12 @@ class Statistics {
   public async $list6M(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(30240);
+      const query = this.getQueryForDaysAvg(10800, '6 MONTH'); // 3h interval 
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
     } catch (e) {
-      logger.err('$list6M() error' + e);
+      logger.err('$list6M() error' + (e instanceof Error ? e.message : e));
       return [];
     }
   }
@@ -398,22 +437,46 @@ class Statistics {
   public async $list1Y(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(60480);
+      const query = this.getQueryForDays(28800, '1 YEAR'); // 8h interval
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
     } catch (e) {
-      logger.err('$list6M() error' + e);
+      logger.err('$list1Y() error' + (e instanceof Error ? e.message : e));
       return [];
     }
   }
+
+  public async $list2Y(): Promise<OptimizedStatistic[]> {
+    try {
+      const connection = await DB.pool.getConnection();
+      const query = this.getQueryForDays(28800, "2 YEAR"); // 8h interval
+      const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
+      connection.release();
+      return this.mapStatisticToOptimizedStatistic(rows);
+    } catch (e) {
+      logger.err('$list2Y() error' + (e instanceof Error ? e.message : e));
+      return [];
+    }
+  }
+
+  public async $list3Y(): Promise<OptimizedStatistic[]> {
+    try {
+      const connection = await DB.pool.getConnection();
+      const query = this.getQueryForDays(43200, "3 YEAR"); // 12h interval
+      const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
+      connection.release();
+      return this.mapStatisticToOptimizedStatistic(rows);
+    } catch (e) {
+      logger.err('$list3Y() error' + (e instanceof Error ? e.message : e));
+      return [];
+    }
+  }
+
   private mapStatisticToOptimizedStatistic(statistic: Statistic[]): OptimizedStatistic[] {
     return statistic.map((s) => {
       return {
-        id: s.id || 0,
         added: s.added,
-        unconfirmed_transactions: s.unconfirmed_transactions,
-        tx_per_second: s.tx_per_second,
         vbytes_per_second: s.vbytes_per_second,
         mempool_byte_weight: s.mempool_byte_weight,
         total_fee: s.total_fee,

backend/src/api/transaction-utils.ts

@@ -1,7 +1,8 @@
 import bitcoinApi from './bitcoin/bitcoin-api-factory';
-import logger from '../logger';
 import { TransactionExtended, TransactionMinerInfo } from '../mempool.interfaces';
 import { IEsploraApi } from './bitcoin/esplora-api.interface';
+import config from '../config';
+import { Common } from './common';
 
 class TransactionUtils {
   constructor() { }
@@ -31,7 +32,8 @@ class TransactionUtils {
       // @ts-ignore
       return transaction;
     }
-    const feePerVbytes = Math.max(1, (transaction.fee || 0) / (transaction.weight / 4));
+    const feePerVbytes = Math.max(Common.isLiquid() ? 0.1 : 1,
+      (transaction.fee || 0) / (transaction.weight / 4));
     const transactionExtended: TransactionExtended = Object.assign({
       vsize: Math.round(transaction.weight / 4),
       feePerVsize: feePerVbytes,

backend/src/api/websocket-handler.ts

@@ -14,7 +14,6 @@ import transactionUtils from './transaction-utils';
 
 class WebsocketHandler {
   private wss: WebSocket.Server | undefined;
-  private nativeAssetId = '6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d';
   private extraInitProperties = {};
 
   constructor() { }
@@ -34,7 +33,7 @@ class WebsocketHandler {
 
     this.wss.on('connection', (client: WebSocket) => {
       client.on('error', logger.info);
-      client.on('message', (message: string) => {
+      client.on('message', async (message: string) => {
         try {
           const parsedMessage: WebsocketResponse = JSON.parse(message);
           const response = {};
@@ -53,9 +52,25 @@ class WebsocketHandler {
               if (parsedMessage['watch-mempool']) {
                 const tx = memPool.getMempool()[client['track-tx']];
                 if (tx) {
-                  response['tx'] = tx;
+                  if (config.MEMPOOL.BACKEND === 'esplora') {
+                    response['tx'] = tx;
+                  } else {
+                    // tx.prevouts is missing from transactions when in bitcoind mode
+                    try {
+                      const fullTx = await transactionUtils.$getTransactionExtended(tx.txid, true);
+                      response['tx'] = fullTx;
+                    } catch (e) {
+                      logger.debug('Error finding transaction: ' + (e instanceof Error ? e.message : e));
+                    }
+                  }
                 } else {
-                  client['track-mempool-tx'] = parsedMessage['track-tx'];
+                  try {
+                    const fullTx = await transactionUtils.$getTransactionExtended(client['track-tx'], true);
+                    response['tx'] = fullTx;
+                  } catch (e) {
+                    logger.debug('Error finding transaction. ' + (e instanceof Error ? e.message : e));
+                    client['track-mempool-tx'] = parsedMessage['track-tx'];
+                  }
                 }
               }
             } else {
@@ -64,9 +79,13 @@ class WebsocketHandler {
           }
 
           if (parsedMessage && parsedMessage['track-address']) {
-            if (/^([a-km-zA-HJ-NP-Z1-9]{26,35}|[a-km-zA-HJ-NP-Z1-9]{80}|[a-z]{2,5}1[ac-hj-np-z02-9]{8,87})$/
+            if (/^([a-km-zA-HJ-NP-Z1-9]{26,35}|[a-km-zA-HJ-NP-Z1-9]{80}|[a-z]{2,5}1[ac-hj-np-z02-9]{8,100}|[A-Z]{2,5}1[AC-HJ-NP-Z02-9]{8,100})$/
               .test(parsedMessage['track-address'])) {
-              client['track-address'] = parsedMessage['track-address'];
+              let matchedAddress = parsedMessage['track-address'];
+              if (/^[A-Z]{2,5}1[AC-HJ-NP-Z02-9]{8,100}$/.test(parsedMessage['track-address'])) {
+                matchedAddress = matchedAddress.toLowerCase();
+              }
+              client['track-address'] = matchedAddress;
             } else {
               client['track-address'] = null;
             }
@@ -81,7 +100,7 @@ class WebsocketHandler {
           }
 
           if (parsedMessage.action === 'init') {
-            const _blocks = blocks.getBlocks().slice(-8);
+            const _blocks = blocks.getBlocks().slice(-config.MEMPOOL.INITIAL_BLOCKS_AMOUNT);
             if (!_blocks) {
               return;
             }
@@ -96,11 +115,19 @@ class WebsocketHandler {
             client['track-donation'] = parsedMessage['track-donation'];
           }
 
+          if (parsedMessage['track-bisq-market']) {
+            if (/^[a-z]{3}_[a-z]{3}$/.test(parsedMessage['track-bisq-market'])) {
+              client['track-bisq-market'] = parsedMessage['track-bisq-market'];
+            } else {
+              client['track-bisq-market'] = null;
+            }
+          }
+
           if (Object.keys(response).length) {
             client.send(JSON.stringify(response));
           }
         } catch (e) {
-          logger.debug('Error parsing websocket message: ' + e.message || e);
+          logger.debug('Error parsing websocket message: ' + (e instanceof Error ? e.message : e));
         }
       });
     });
@@ -149,12 +176,13 @@ class WebsocketHandler {
 
   getInitData(_blocks?: BlockExtended[]) {
     if (!_blocks) {
-      _blocks = blocks.getBlocks().slice(-8);
+      _blocks = blocks.getBlocks().slice(-config.MEMPOOL.INITIAL_BLOCKS_AMOUNT);
     }
     return {
       'mempoolInfo': memPool.getMempoolInfo(),
       'vBytesPerSecond': memPool.getVBytesPerSecond(),
       'lastDifficultyAdjustment': blocks.getLastDifficultyAdjustmentTime(),
+      'previousRetarget': blocks.getPreviousDifficultyRetarget(),
       'blocks': _blocks,
       'conversions': fiatConversion.getConversionRates(),
       'mempool-blocks': mempoolBlocks.getMempoolBlocks(),
@@ -227,7 +255,7 @@ class WebsocketHandler {
               const fullTx = await transactionUtils.$getTransactionExtended(tx.txid, true);
               response['tx'] = fullTx;
             } catch (e) {
-              logger.debug('Error finding transaction in mempool: ' + e.message || e);
+              logger.debug('Error finding transaction in mempool: ' + (e instanceof Error ? e.message : e));
             }
           } else {
             response['tx'] = tx;
@@ -247,7 +275,7 @@ class WebsocketHandler {
                 const fullTx = await transactionUtils.$getTransactionExtended(tx.txid, true);
                 foundTransactions.push(fullTx);
               } catch (e) {
-                logger.debug('Error finding transaction in mempool: ' + e.message || e);
+                logger.debug('Error finding transaction in mempool: ' + (e instanceof Error ? e.message : e));
               }
             } else {
               foundTransactions.push(tx);
@@ -261,7 +289,7 @@ class WebsocketHandler {
                 const fullTx = await transactionUtils.$getTransactionExtended(tx.txid, true);
                 foundTransactions.push(fullTx);
               } catch (e) {
-                logger.debug('Error finding transaction in mempool: ' + e.message || e);
+                logger.debug('Error finding transaction in mempool: ' + (e instanceof Error ? e.message : e));
               }
             } else {
               foundTransactions.push(tx);
@@ -279,7 +307,7 @@ class WebsocketHandler {
 
         newTransactions.forEach((tx) => {
 
-          if (client['track-asset'] === this.nativeAssetId) {
+          if (client['track-asset'] === Common.nativeAssetId) {
             if (tx.vin.some((vin) => !!vin.is_pegin)) {
               foundTransactions.push(tx);
               return;
@@ -312,7 +340,7 @@ class WebsocketHandler {
                 const fullTx = await transactionUtils.$getTransactionExtended(rbfTransaction, true);
                 response['rbfTransaction'] = fullTx;
               } catch (e) {
-                logger.debug('Error finding transaction in mempool: ' + e.message || e);
+                logger.debug('Error finding transaction in mempool: ' + (e instanceof Error ? e.message : e));
               }
             } else {
               response['rbfTransaction'] = rbfTx;
@@ -367,6 +395,7 @@ class WebsocketHandler {
         'block': block,
         'mempoolInfo': memPool.getMempoolInfo(),
         'lastDifficultyAdjustment': blocks.getLastDifficultyAdjustmentTime(),
+        'previousRetarget': blocks.getPreviousDifficultyRetarget(),
       };
 
       if (mBlocks && client['want-mempool-blocks']) {
@@ -409,7 +438,7 @@ class WebsocketHandler {
         const foundTransactions: TransactionExtended[] = [];
 
         transactions.forEach((tx) => {
-          if (client['track-asset'] === this.nativeAssetId) {
+          if (client['track-asset'] === Common.nativeAssetId) {
             if (tx.vin && tx.vin.some((vin) => !!vin.is_pegin)) {
               foundTransactions.push(tx);
               return;

backend/src/config.ts

@@ -2,7 +2,7 @@ const configFile = require('../mempool-config.json');
 
 interface IConfig {
   MEMPOOL: {
-    NETWORK: 'mainnet' | 'testnet' | 'signet' | 'liquid';
+    NETWORK: 'mainnet' | 'testnet' | 'signet' | 'liquid' | 'liquidtestnet';
     BACKEND: 'esplora' | 'electrum' | 'none';
     HTTP_PORT: number;
     SPAWN_CLUSTER_PROCS: number;
@@ -11,6 +11,12 @@ interface IConfig {
     CACHE_DIR: string;
     CLEAR_PROTECTION_MINUTES: number;
     RECOMMENDED_FEE_PERCENTILE: number;
+    BLOCK_WEIGHT_UNITS: number;
+    INITIAL_BLOCKS_AMOUNT: number;
+    MEMPOOL_BLOCKS_AMOUNT: number;
+    PRICE_FEED_UPDATE_INTERVAL: number;
+    USE_SECOND_NODE_FOR_MINFEE: boolean;
+    EXTERNAL_ASSETS: string[];
   };
   ESPLORA: {
     REST_API_URL: string;
@@ -26,8 +32,7 @@ interface IConfig {
     USERNAME: string;
     PASSWORD: string;
   };
-  CORE_RPC_MINFEE: {
-    ENABLED: boolean;
+  SECOND_CORE_RPC: {
     HOST: string;
     PORT: number;
     USERNAME: string;
@@ -52,11 +57,7 @@ interface IConfig {
     ENABLED: boolean;
     TX_PER_SECOND_SAMPLE_PERIOD: number;
   };
-  BISQ_BLOCKS: {
-    ENABLED: boolean;
-    DATA_PATH: string;
-  };
-  BISQ_MARKETS: {
+  BISQ: {
     ENABLED: boolean;
     DATA_PATH: string;
   };
@@ -73,6 +74,12 @@ const defaults: IConfig = {
     'CACHE_DIR': './cache',
     'CLEAR_PROTECTION_MINUTES': 20,
     'RECOMMENDED_FEE_PERCENTILE': 50,
+    'BLOCK_WEIGHT_UNITS': 4000000,
+    'INITIAL_BLOCKS_AMOUNT': 8,
+    'MEMPOOL_BLOCKS_AMOUNT': 8,
+    'PRICE_FEED_UPDATE_INTERVAL': 3600,
+    'USE_SECOND_NODE_FOR_MINFEE': false,
+    'EXTERNAL_ASSETS': [],
   },
   'ESPLORA': {
     'REST_API_URL': 'http://127.0.0.1:3000',
@@ -88,8 +95,7 @@ const defaults: IConfig = {
     'USERNAME': 'mempool',
     'PASSWORD': 'mempool'
   },
-  'CORE_RPC_MINFEE': {
-    'ENABLED': false,
+  'SECOND_CORE_RPC': {
     'HOST': '127.0.0.1',
     'PORT': 8332,
     'USERNAME': 'mempool',
@@ -114,11 +120,7 @@ const defaults: IConfig = {
     'ENABLED': true,
     'TX_PER_SECOND_SAMPLE_PERIOD': 150
   },
-  'BISQ_BLOCKS': {
-    'ENABLED': false,
-    'DATA_PATH': '/bisq/statsnode-data/btc_mainnet/db/json'
-  },
-  'BISQ_MARKETS': {
+  'BISQ': {
     'ENABLED': false,
     'DATA_PATH': '/bisq/statsnode-data/btc_mainnet/db'
   },
@@ -129,12 +131,11 @@ class Config implements IConfig {
   ESPLORA: IConfig['ESPLORA'];
   ELECTRUM: IConfig['ELECTRUM'];
   CORE_RPC: IConfig['CORE_RPC'];
-  CORE_RPC_MINFEE: IConfig['CORE_RPC_MINFEE'];
+  SECOND_CORE_RPC: IConfig['SECOND_CORE_RPC'];
   DATABASE: IConfig['DATABASE'];
   SYSLOG: IConfig['SYSLOG'];
   STATISTICS: IConfig['STATISTICS'];
-  BISQ_BLOCKS: IConfig['BISQ_BLOCKS'];
-  BISQ_MARKETS: IConfig['BISQ_MARKETS'];
+  BISQ: IConfig['BISQ'];
 
   constructor() {
     const configs = this.merge(configFile, defaults);
@@ -142,12 +143,11 @@ class Config implements IConfig {
     this.ESPLORA = configs.ESPLORA;
     this.ELECTRUM = configs.ELECTRUM;
     this.CORE_RPC = configs.CORE_RPC;
-    this.CORE_RPC_MINFEE = configs.CORE_RPC_MINFEE;
+    this.SECOND_CORE_RPC = configs.SECOND_CORE_RPC;
     this.DATABASE = configs.DATABASE;
     this.SYSLOG = configs.SYSLOG;
     this.STATISTICS = configs.STATISTICS;
-    this.BISQ_BLOCKS = configs.BISQ_BLOCKS;
-    this.BISQ_MARKETS = configs.BISQ_MARKETS;
+    this.BISQ = configs.BISQ;
   }
 
   merge = (...objects: object[]): IConfig => {

backend/src/database.ts

@@ -20,7 +20,7 @@ export async function checkDbConnection() {
     logger.info('Database connection established.');
     connection.release();
   } catch (e) {
-    logger.err('Could not connect to database: ' + e.message || e);
+    logger.err('Could not connect to database: ' + (e instanceof Error ? e.message : e));
     process.exit(1);
   }
 }

backend/src/index.ts

@@ -20,6 +20,11 @@ import logger from './logger';
 import backendInfo from './api/backend-info';
 import loadingIndicators from './api/loading-indicators';
 import mempool from './api/mempool';
+import elementsParser from './api/liquid/elements-parser';
+import databaseMigration from './api/database-migration';
+import syncAssets from './sync-assets';
+import icons from './api/liquid/icons';
+import { Common } from './api/common';
 
 class Server {
   private wss: WebSocket.Server | undefined;
@@ -68,35 +73,43 @@ class Server {
         next();
       })
       .use(express.urlencoded({ extended: true }))
-      .use(express.json());
+      .use(express.text())
+    ;
 
     this.server = http.createServer(this.app);
     this.wss = new WebSocket.Server({ server: this.server });
 
     this.setUpWebsocketHandling();
 
+    await syncAssets.syncAssets();
     diskCache.loadMempoolCache();
 
     if (config.DATABASE.ENABLED) {
       await checkDbConnection();
+      try {
+        await databaseMigration.$initializeOrMigrateDatabase();
+      } catch (e) {
+        throw new Error(e instanceof Error ? e.message : 'Error');
+      }
     }
 
-    if (config.STATISTICS.ENABLED && config.DATABASE.ENABLED) {
+    if (config.STATISTICS.ENABLED && config.DATABASE.ENABLED && cluster.isMaster) {
       statistics.startStatistics();
     }
 
+    if (Common.isLiquid()) {
+      icons.loadIcons();
+    }
+
     fiatConversion.startService();
 
     this.setUpHttpApiRoutes();
     this.runMainUpdateLoop();
 
-    if (config.BISQ_BLOCKS.ENABLED) {
+    if (config.BISQ.ENABLED) {
       bisq.startBisqService();
       bisq.setPriceCallbackFunction((price) => websocketHandler.setExtraInitProperties('bsq-price', price));
       blocks.setNewBlockCallback(bisq.handleNewBitcoinBlock.bind(bisq));
-    }
-
-    if (config.BISQ_MARKETS.ENABLED) {
       bisqMarkets.startBisqService();
     }
 
@@ -114,8 +127,8 @@ class Server {
       try {
         await memPool.$updateMemPoolInfo();
       } catch (e) {
-        const msg = `updateMempoolInfo: ${(e.message || e)}`;
-        if (config.CORE_RPC_MINFEE.ENABLED) {
+        const msg = `updateMempoolInfo: ${(e instanceof Error ? e.message : e)}`;
+        if (config.MEMPOOL.USE_SECOND_NODE_FOR_MINFEE) {
           logger.warn(msg);
         } else {
           logger.debug(msg);
@@ -126,7 +139,7 @@ class Server {
       setTimeout(this.runMainUpdateLoop.bind(this), config.MEMPOOL.POLL_RATE_MS);
       this.currentBackendRetryInterval = 5;
     } catch (e) {
-      const loggerMsg = `runMainLoop error: ${(e.message || e)}. Retrying in ${this.currentBackendRetryInterval} sec.`;
+      const loggerMsg = `runMainLoop error: ${(e instanceof Error ? e.message : e)}. Retrying in ${this.currentBackendRetryInterval} sec.`;
       if (this.currentBackendRetryInterval > 5) {
         logger.warn(loggerMsg);
         mempool.setOutOfSync();
@@ -144,6 +157,15 @@ class Server {
     if (this.wss) {
       websocketHandler.setWebsocketServer(this.wss);
     }
+    if (Common.isLiquid() && config.DATABASE.ENABLED) {
+      blocks.setNewBlockCallback(async () => {
+        try {
+          await elementsParser.$parse();
+        } catch (e) {
+          logger.warn('Elements parsing error: ' + (e instanceof Error ? e.message : e));
+        }
+      });
+    }
     websocketHandler.setupConnectionHandling();
     statistics.setNewStatisticsEntryCallback(websocketHandler.handleNewStatistic.bind(websocketHandler));
     blocks.setNewBlockCallback(websocketHandler.handleNewBlock.bind(websocketHandler));
@@ -156,10 +178,13 @@ class Server {
     this.app
       .get(config.MEMPOOL.API_URL_PREFIX + 'transaction-times', routes.getTransactionTimes)
       .get(config.MEMPOOL.API_URL_PREFIX + 'cpfp/:txId', routes.getCpfpInfo)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'difficulty-adjustment', routes.getDifficultyChange)
       .get(config.MEMPOOL.API_URL_PREFIX + 'fees/recommended', routes.getRecommendedFees)
       .get(config.MEMPOOL.API_URL_PREFIX + 'fees/mempool-blocks', routes.getMempoolBlocks)
       .get(config.MEMPOOL.API_URL_PREFIX + 'backend-info', routes.getBackendInfo)
       .get(config.MEMPOOL.API_URL_PREFIX + 'init-data', routes.getInitData)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'validate-address/:address', routes.validateAddress)
+      .post(config.MEMPOOL.API_URL_PREFIX + 'tx/push', routes.$postTransactionForm)
       .get(config.MEMPOOL.API_URL_PREFIX + 'donations', async (req, res) => {
         try {
           const response = await axios.get('https://mempool.space/api/v1/donations', { responseType: 'stream', timeout: 10000 });
@@ -196,21 +221,41 @@ class Server {
           res.status(500).end();
         }
       })
+      .get(config.MEMPOOL.API_URL_PREFIX + 'translators', async (req, res) => {
+        try {
+          const response = await axios.get('https://mempool.space/api/v1/translators', { responseType: 'stream', timeout: 10000 });
+          response.data.pipe(res);
+        } catch (e) {
+          res.status(500).end();
+        }
+      })
+      .get(config.MEMPOOL.API_URL_PREFIX + 'translators/images/:id', async (req, res) => {
+        try {
+          const response = await axios.get('https://mempool.space/api/v1/translators/images/' + req.params.id, {
+            responseType: 'stream', timeout: 10000
+          });
+          response.data.pipe(res);
+        } catch (e) {
+          res.status(500).end();
+        }
+      })
     ;
 
     if (config.STATISTICS.ENABLED && config.DATABASE.ENABLED) {
       this.app
-        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/2h', routes.get2HStatistics)
-        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/24h', routes.get24HStatistics.bind(routes))
-        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/1w', routes.get1WHStatistics.bind(routes))
-        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/1m', routes.get1MStatistics.bind(routes))
-        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/3m', routes.get3MStatistics.bind(routes))
-        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/6m', routes.get6MStatistics.bind(routes))
-        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/1y', routes.get1YStatistics.bind(routes))
+        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/2h', routes.$getStatisticsByTime.bind(routes, '2h'))
+        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/24h', routes.$getStatisticsByTime.bind(routes, '24h'))
+        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/1w', routes.$getStatisticsByTime.bind(routes, '1w'))
+        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/1m', routes.$getStatisticsByTime.bind(routes, '1m'))
+        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/3m', routes.$getStatisticsByTime.bind(routes, '3m'))
+        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/6m', routes.$getStatisticsByTime.bind(routes, '6m'))
+        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/1y', routes.$getStatisticsByTime.bind(routes, '1y'))
+        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/2y', routes.$getStatisticsByTime.bind(routes, '2y'))
+        .get(config.MEMPOOL.API_URL_PREFIX + 'statistics/3y', routes.$getStatisticsByTime.bind(routes, '3y'))
         ;
     }
 
-    if (config.BISQ_BLOCKS.ENABLED) {
+    if (config.BISQ.ENABLED) {
       this.app
         .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/stats', routes.getBisqStats)
         .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/tx/:txId', routes.getBisqTransaction)
@@ -219,11 +264,6 @@ class Server {
         .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/blocks/:index/:length', routes.getBisqBlocks)
         .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/address/:address', routes.getBisqAddress)
         .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/txs/:index/:length', routes.getBisqTransactions)
-      ;
-    }
-
-    if (config.BISQ_MARKETS.ENABLED) {
-      this.app
         .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/currencies', routes.getBisqMarketCurrencies.bind(routes))
         .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/depth', routes.getBisqMarketDepth.bind(routes))
         .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/hloc', routes.getBisqMarketHloc.bind(routes))
@@ -232,6 +272,7 @@ class Server {
         .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/ticker', routes.getBisqMarketTicker.bind(routes))
         .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/trades', routes.getBisqMarketTrades.bind(routes))
         .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/volumes', routes.getBisqMarketVolumes.bind(routes))
+        .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/volumes/7d', routes.getBisqMarketVolumes7d.bind(routes))
         ;
     }
 
@@ -241,9 +282,12 @@ class Server {
         .get(config.MEMPOOL.API_URL_PREFIX + 'mempool/txids', routes.getMempoolTxIds)
         .get(config.MEMPOOL.API_URL_PREFIX + 'mempool/recent', routes.getRecentMempoolTransactions)
         .get(config.MEMPOOL.API_URL_PREFIX + 'tx/:txId', routes.getTransaction)
+        .post(config.MEMPOOL.API_URL_PREFIX + 'tx', routes.$postTransaction)
+        .get(config.MEMPOOL.API_URL_PREFIX + 'tx/:txId/hex', routes.getRawTransaction)
         .get(config.MEMPOOL.API_URL_PREFIX + 'tx/:txId/status', routes.getTransactionStatus)
         .get(config.MEMPOOL.API_URL_PREFIX + 'tx/:txId/outspends', routes.getTransactionOutspends)
         .get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash', routes.getBlock)
+        .get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash/header', routes.getBlockHeader)
         .get(config.MEMPOOL.API_URL_PREFIX + 'blocks', routes.getBlocks)
         .get(config.MEMPOOL.API_URL_PREFIX + 'blocks/:height', routes.getBlocks)
         .get(config.MEMPOOL.API_URL_PREFIX + 'blocks/tip/height', routes.getBlockTipHeight)
@@ -257,6 +301,19 @@ class Server {
         .get(config.MEMPOOL.API_URL_PREFIX + 'address-prefix/:prefix', routes.getAddressPrefix)
       ;
     }
+
+    if (Common.isLiquid()) {
+      this.app
+        .get(config.MEMPOOL.API_URL_PREFIX + 'assets/icons', routes.getAllLiquidIcon)
+        .get(config.MEMPOOL.API_URL_PREFIX + 'asset/:assetId/icon', routes.getLiquidIcon)
+      ;
+    }
+
+    if (Common.isLiquid() && config.DATABASE.ENABLED) {
+      this.app
+        .get(config.MEMPOOL.API_URL_PREFIX + 'liquid/pegs/month', routes.$getElementsPegsByMonth)
+      ;
+    }
   }
 }
 

backend/src/logger.ts

@@ -73,7 +73,7 @@ class Logger {
   }
 
   private getNetwork(): string {
-    if (config.BISQ_BLOCKS.ENABLED) {
+    if (config.BISQ.ENABLED) {
       return 'bisq';
     }
     if (config.MEMPOOL.NETWORK && config.MEMPOOL.NETWORK !== 'mainnet') {

backend/src/mempool.interfaces.ts

@@ -128,10 +128,7 @@ export interface Statistic {
 }
 
 export interface OptimizedStatistic {
-  id: number;
   added: string;
-  unconfirmed_transactions: number;
-  tx_per_second: number;
   vbytes_per_second: number;
   total_fee: number;
   mempool_byte_weight: number;
@@ -144,6 +141,7 @@ export interface WebsocketResponse {
   'track-tx': string;
   'track-address': string;
   'watch-mempool': boolean;
+  'track-bisq-market': string;
 }
 
 export interface VbytesPerSecond {

backend/src/routes.ts

@@ -17,37 +17,57 @@ import transactionUtils from './api/transaction-utils';
 import blocks from './api/blocks';
 import loadingIndicators from './api/loading-indicators';
 import { Common } from './api/common';
+import bitcoinClient from './api/bitcoin/bitcoin-client';
+import elementsParser from './api/liquid/elements-parser';
+import icons from './api/liquid/icons';
 
 class Routes {
   constructor() {}
 
-  public async get2HStatistics(req: Request, res: Response) {
-    const result = await statistics.$list2H();
-    res.json(result);
-  }
+  public async $getStatisticsByTime(time: '2h' | '24h' | '1w' | '1m' | '3m' | '6m' | '1y' | '2y' | '3y', req: Request, res: Response) {
+    res.header('Pragma', 'public');
+    res.header('Cache-control', 'public');
+    res.setHeader('Expires', new Date(Date.now() + 1000 * 300).toUTCString());
 
-  public get24HStatistics(req: Request, res: Response) {
-    res.json(statistics.getCache()['24h']);
-  }
-
-  public get1WHStatistics(req: Request, res: Response) {
-    res.json(statistics.getCache()['1w']);
-  }
-
-  public get1MStatistics(req: Request, res: Response) {
-    res.json(statistics.getCache()['1m']);
-  }
-
-  public get3MStatistics(req: Request, res: Response) {
-    res.json(statistics.getCache()['3m']);
-  }
-
-  public get6MStatistics(req: Request, res: Response) {
-    res.json(statistics.getCache()['6m']);
-  }
-
-  public get1YStatistics(req: Request, res: Response) {
-    res.json(statistics.getCache()['1y']);
+    try {
+      let result;
+      switch (time as string) {
+        case '2h':
+          result = await statistics.$list2H();
+          res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
+          break;
+        case '24h':
+          result = await statistics.$list24H();
+          res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
+          break;
+        case '1w':
+          result = await statistics.$list1W();
+          break;
+        case '1m':
+          result = await statistics.$list1M();
+          break;
+        case '3m':
+          result = await statistics.$list3M();
+          break;
+        case '6m':
+          result = await statistics.$list6M();
+          break;
+        case '1y':
+          result = await statistics.$list1Y();
+          break;
+        case '2y':
+          result = await statistics.$list2Y();
+          break;
+        case '3y':
+          result = await statistics.$list3Y();
+          break;
+        default:
+          result = await statistics.$list2H();
+      }
+      res.json(result);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
   }
 
   public getInitData(req: Request, res: Response) {
@@ -55,11 +75,11 @@ class Routes {
       const result = websocketHandler.getInitData();
       res.json(result);
     } catch (e) {
-      res.status(500).send(e.message);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
-  public async getRecommendedFees(req: Request, res: Response) {
+  public getRecommendedFees(req: Request, res: Response) {
     if (!mempool.isInSync()) {
       res.statusCode = 503;
       res.send('Service Unavailable');
@@ -74,7 +94,7 @@ class Routes {
       const result = mempoolBlocks.getMempoolBlocks();
       res.json(result);
     } catch (e) {
-      res.status(500).send(e.message);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -426,6 +446,15 @@ class Routes {
     }
   }
 
+  public getBisqMarketVolumes7d(req: Request, res: Response) {
+    const result = bisqMarket.getVolumesByTime(604800);
+    if (result) {
+      res.json(result);
+    } else {
+      res.status(500).json(this.getBisqMarketErrorResponse('getBisqMarketVolumes7d error'));
+    }
+  }
+
   private parseRequestParameters(requestParams: object, params: RequiredSpec): { [name: string]: any; } {
     const final = {};
     for (const i in params) {
@@ -468,10 +497,24 @@ class Routes {
       res.json(transaction);
     } catch (e) {
       let statusCode = 500;
-      if (e.message && e.message.indexOf('No such mempool or blockchain transaction') > -1) {
+      if (e instanceof Error && e instanceof Error && e.message && e.message.indexOf('No such mempool or blockchain transaction') > -1) {
         statusCode = 404;
       }
-      res.status(statusCode).send(e.message || e);
+      res.status(statusCode).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  public async getRawTransaction(req: Request, res: Response) {
+    try {
+      const transaction: IEsploraApi.Transaction = await bitcoinApi.$getRawTransaction(req.params.txId, true);
+      res.setHeader('content-type', 'text/plain');
+      res.send(transaction.hex);
+    } catch (e) {
+      let statusCode = 500;
+      if (e instanceof Error && e.message && e.message.indexOf('No such mempool or blockchain transaction') > -1) {
+        statusCode = 404;
+      }
+      res.status(statusCode).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -481,10 +524,10 @@ class Routes {
       res.json(transaction.status);
     } catch (e) {
       let statusCode = 500;
-      if (e.message && e.message.indexOf('No such mempool or blockchain transaction') > -1) {
+      if (e instanceof Error && e.message && e.message.indexOf('No such mempool or blockchain transaction') > -1) {
         statusCode = 404;
       }
-      res.status(statusCode).send(e.message || e);
+      res.status(statusCode).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -493,7 +536,17 @@ class Routes {
       const result = await bitcoinApi.$getBlock(req.params.hash);
       res.json(result);
     } catch (e) {
-      res.status(500).send(e.message || e);
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  public async getBlockHeader(req: Request, res: Response) {
+    try {
+      const blockHeader = await bitcoinApi.$getBlockHeader(req.params.hash);
+      res.setHeader('content-type', 'text/plain');
+      res.send(blockHeader);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -530,7 +583,7 @@ class Routes {
       res.json(returnBlocks);
     } catch (e) {
       loadingIndicators.setProgress('blocks', 100);
-      res.status(500).send(e.message || e);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -549,13 +602,13 @@ class Routes {
           transactions.push(transaction);
           loadingIndicators.setProgress('blocktxs-' + req.params.hash, (i + 1) / endIndex * 100);
         } catch (e) {
-          logger.debug('getBlockTransactions error: ' + e.message || e);
+          logger.debug('getBlockTransactions error: ' + (e instanceof Error ? e.message : e));
         }
       }
       res.json(transactions);
     } catch (e) {
       loadingIndicators.setProgress('blocktxs-' + req.params.hash, 100);
-      res.status(500).send(e.message || e);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -564,7 +617,7 @@ class Routes {
       const blockHash = await bitcoinApi.$getBlockHash(parseInt(req.params.height, 10));
       res.send(blockHash);
     } catch (e) {
-      res.status(500).send(e.message || e);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -578,10 +631,10 @@ class Routes {
       const addressData = await bitcoinApi.$getAddress(req.params.address);
       res.json(addressData);
     } catch (e) {
-      if (e.message && e.message.indexOf('exceeds') > 0) {
-        return res.status(413).send(e.message);
+      if (e instanceof Error && e.message && (e.message.indexOf('too long') > 0 || e.message.indexOf('confirmed status') > 0)) {
+        return res.status(413).send(e instanceof Error ? e.message : e);
       }
-      res.status(500).send(e.message || e);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -595,10 +648,10 @@ class Routes {
       const transactions = await bitcoinApi.$getAddressTransactions(req.params.address, req.params.txId);
       res.json(transactions);
     } catch (e) {
-      if (e.message && e.message.indexOf('exceeds') > 0) {
-        return res.status(413).send(e.message);
+      if (e instanceof Error && e.message && (e.message.indexOf('too long') > 0 || e.message.indexOf('confirmed status') > 0)) {
+        return res.status(413).send(e instanceof Error ? e.message : e);
       }
-      res.status(500).send(e.message || e);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -611,7 +664,7 @@ class Routes {
       const blockHash = await bitcoinApi.$getAddressPrefix(req.params.prefix);
       res.send(blockHash);
     } catch (e) {
-      res.status(500).send(e.message || e);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -632,7 +685,7 @@ class Routes {
       const rawMempool = await bitcoinApi.$getRawMempool();
       res.send(rawMempool);
     } catch (e) {
-      res.status(500).send(e.message || e);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -641,7 +694,7 @@ class Routes {
       const result = await bitcoinApi.$getBlockHeightTip();
       res.json(result);
     } catch (e) {
-      res.status(500).send(e.message || e);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -650,12 +703,144 @@ class Routes {
       const result = await bitcoinApi.$getTxIdsForBlock(req.params.hash);
       res.json(result);
     } catch (e) {
-      res.status(500).send(e.message || e);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
-  public getTransactionOutspends(req: Request, res: Response) {
-    res.status(501).send('Not implemented');
+  public async validateAddress(req: Request, res: Response) {
+    try {
+      const result = await bitcoinClient.validateAddress(req.params.address);
+      res.json(result);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  public async getTransactionOutspends(req: Request, res: Response) {
+    try {
+      const result = await bitcoinApi.$getOutspends(req.params.txId);
+      res.json(result);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  public getDifficultyChange(req: Request, res: Response) {
+    try {
+      const DATime = blocks.getLastDifficultyAdjustmentTime();
+      const previousRetarget = blocks.getPreviousDifficultyRetarget();
+      const blockHeight = blocks.getCurrentBlockHeight();
+
+      const now = new Date().getTime() / 1000;
+      const diff = now - DATime;
+      const blocksInEpoch = blockHeight % 2016;
+      const progressPercent = (blocksInEpoch >= 0) ? blocksInEpoch / 2016 * 100 : 100;
+      const remainingBlocks = 2016 - blocksInEpoch;
+      const nextRetargetHeight = blockHeight + remainingBlocks;
+
+      let difficultyChange = 0;
+      if (remainingBlocks < 1870) {
+        if (blocksInEpoch > 0) {
+          difficultyChange = (600 / (diff / blocksInEpoch ) - 1) * 100;
+        }
+        if (difficultyChange > 300) {
+          difficultyChange = 300;
+        }
+        if (difficultyChange < -75) {
+          difficultyChange = -75;
+        }
+      }
+
+      const timeAvgDiff = difficultyChange * 0.1;
+
+      let timeAvgMins = 10;
+      if (timeAvgDiff > 0) {
+        timeAvgMins -= Math.abs(timeAvgDiff);
+      } else {
+        timeAvgMins += Math.abs(timeAvgDiff);
+      }
+
+      const timeAvg = timeAvgMins * 60;
+      const remainingTime =  remainingBlocks * timeAvg;
+      const estimatedRetargetDate = remainingTime + now;
+
+      const result = {
+        progressPercent,
+        difficultyChange,
+        estimatedRetargetDate,
+        remainingBlocks,
+        remainingTime,
+        previousRetarget,
+        nextRetargetHeight,
+        timeAvg,
+      };
+      res.json(result);
+
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  public async $getElementsPegsByMonth(req: Request, res: Response) {
+    try {
+      const pegs = await elementsParser.$getPegDataByMonth();
+      res.json(pegs);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  public async $postTransaction(req: Request, res: Response) {
+    res.setHeader('content-type', 'text/plain');
+    try {
+      let rawTx;
+      if (typeof req.body === 'object') {
+        rawTx = Object.keys(req.body)[0];
+      } else {
+        rawTx = req.body;
+      }
+      const txIdResult = await bitcoinApi.$sendRawTransaction(rawTx);
+      res.send(txIdResult);
+    } catch (e: any) {
+      res.status(400).send(e.message && e.code ? 'sendrawtransaction RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
+        : (e.message || 'Error'));
+    }
+  }
+
+  public async $postTransactionForm(req: Request, res: Response) {
+    res.setHeader('content-type', 'text/plain');
+    const matches = /tx=([a-z0-9]+)/.exec(req.body);
+    let txHex = '';
+    if (matches && matches[1]) {
+      txHex = matches[1];
+    }
+    try {
+      const txIdResult = await bitcoinClient.sendRawTransaction(txHex);
+      res.send(txIdResult);
+    } catch (e: any) {
+      res.status(400).send(e.message && e.code ? 'sendrawtransaction RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
+        : (e.message || 'Error'));
+    }
+  }
+
+  public getLiquidIcon(req: Request, res: Response) {
+    const result = icons.getIconByAssetId(req.params.assetId);
+    if (result) {
+      res.setHeader('content-type', 'image/png');
+      res.setHeader('content-length', result.length);
+      res.send(result);
+    } else {
+      res.status(404).send('Asset icon not found');
+    }
+  }
+
+  public getAllLiquidIcon(req: Request, res: Response) {
+    const result = icons.getAllIconIds();
+    if (result) {
+      res.json(result);
+    } else {
+      res.status(404).send('Asset icons not found');
+    }
   }
 }
 

backend/src/sync-assets.ts

@@ -0,0 +1,32 @@
+import axios from 'axios';
+import * as fs from 'fs';
+const fsPromises = fs.promises;
+import config from './config';
+import logger from './logger';
+
+const PATH = './';
+
+class SyncAssets {
+  constructor() { }
+
+  public async syncAssets() {
+    for (const url of config.MEMPOOL.EXTERNAL_ASSETS) {
+      await this.downloadFile(url);
+    }
+  }
+
+  private async downloadFile(url: string) {
+    const fileName = url.split('/').slice(-1)[0];
+    logger.info(`Downloading external asset: ${fileName}...`);
+    try {
+      const response = await axios.get(url, {
+        responseType: 'stream', timeout: 30000
+      });
+      await fsPromises.writeFile(PATH + fileName, response.data);
+    } catch (e: any) {
+      throw new Error(`Failed to download external asset. ` + e);
+    }
+  }
+}
+
+export default new SyncAssets();

backend/tsconfig.json

@@ -2,7 +2,7 @@
   "compilerOptions": {
     "module": "commonjs",
     "target": "esnext",
-    "lib": ["es2019"],
+    "lib": ["es2019", "dom"],
     "strict": true,
     "noImplicitAny": false,
     "sourceMap": false,

docker/README.md

@@ -1,101 +0,0 @@
-# Docker
-
-## Initialization
-
-In an empty dir create 2 sub-dirs
-
-```bash
-mkdir -p data mysql/data mysql/db-scripts
-```
-
-In the `mysql/db-scripts` sub-dir add the `mariadb-structure.sql` file from the mempool repo
-
-Your dir should now look like that:
-
-```bash
-$ls -R
-.:
-data mysql
-
-./data:
-
-./mysql:
-data  db-scripts
-
-./mysql/data:
-
-./mysql/db-scripts:
-mariadb-structure.sql
-```
-
-In the main dir add the following `docker-compose.yml`
-
-```bash
-version: "3.7"
-
-services:
-  web:
-    image: mempool/frontend:latest
-    user: "1000:1000"
-    restart: on-failure
-    stop_grace_period: 1m
-    command: "./wait-for db:3306 --timeout=720 -- nginx -g 'daemon off;'"
-    ports:
-      - 80:8080
-    environment:
-      FRONTEND_HTTP_PORT: "8080"
-      BACKEND_MAINNET_HTTP_HOST: "api"
-  api:
-    image: mempool/backend:latest
-    user: "1000:1000"
-    restart: on-failure
-    stop_grace_period: 1m
-    command: "./wait-for-it.sh db:3306 --timeout=720 --strict -- ./start.sh"
-    volumes:
-      - ./data:/backend/cache
-    environment:
-      RPC_HOST: "127.0.0.1"
-      RPC_PORT: "8332"
-      RPC_USER: "mempool"
-      RPC_PASS: "mempool"
-      ELECTRUM_HOST: "127.0.0.1"
-      ELECTRUM_PORT: "50002"
-      ELECTRUM_TLS: "false"
-      MYSQL_HOST: "db"
-      MYSQL_PORT: "3306"
-      MYSQL_DATABASE: "mempool"
-      MYSQL_USER: "mempool"
-      MYSQL_PASS: "mempool"
-      BACKEND_MAINNET_HTTP_PORT: "8999"
-      CACHE_DIR: "/backend/cache"
-      MEMPOOL_CLEAR_PROTECTION_MINUTES: "20"
-  db:
-    image: mariadb:10.5.8
-    user: "1000:1000"
-    restart: on-failure
-    stop_grace_period: 1m
-    volumes:
-      - ./mysql/data:/var/lib/mysql
-      - ./mysql/db-scripts:/docker-entrypoint-initdb.d
-    environment:
-      MYSQL_DATABASE: "mempool"
-      MYSQL_USER: "mempool"
-      MYSQL_PASSWORD: "mempool"
-      MYSQL_ROOT_PASSWORD: "admin"
-
-```
-
-You can update all the environment variables inside the API container, especially the RPC and ELECTRUM ones
-
-## Run it
-
-To run our docker-compose use the following cmd:
-
-```bash
-docker-compose up
-```
-
-If everything went okay you should see the beautiful mempool :grin:
-
-If you get stuck on "loading blocks", this means the websocket can't connect.
-Check your nginx proxy setup, firewalls, etc. and open an issue if you need help.

docker/backend/Dockerfile

@@ -1,15 +1,14 @@
-FROM node:12-buster-slim AS builder
+FROM node:16.10.0-buster-slim AS builder
 
 WORKDIR /build
 COPY . .
 
 RUN apt-get update
 RUN apt-get install -y build-essential python3 pkg-config
-RUN npm ci --production
-RUN npm i typescript
+RUN npm install
 RUN npm run build
 
-FROM node:12-buster-slim
+FROM node:16.10.0-buster-slim
 
 WORKDIR /backend
 

docker/backend/mempool-config.json

@@ -1,38 +1,62 @@
 {
   "MEMPOOL": {
-    "NETWORK": "mainnet",
-    "BACKEND": "electrum",
-    "HTTP_PORT": __MEMPOOL_BACKEND_MAINNET_HTTP_PORT__,
-    "SPAWN_CLUSTER_PROCS": 0,
-    "API_URL_PREFIX": "/api/v1/",
-    "POLL_RATE_MS": 2000,
-    "CACHE_DIR": "__MEMPOOL_BACKEND_MAINNET_CACHE_DIR__",
-    "CLEAR_PROTECTION_MINUTES": __MEMPOOL_BACKEND_CLEAR_PROTECTION_MINUTES__
+    "NETWORK": "__MEMPOOL_NETWORK__",
+    "BACKEND": "__MEMPOOL_BACKEND__",
+    "HTTP_PORT": __MEMPOOL_HTTP_PORT__,
+    "SPAWN_CLUSTER_PROCS": __MEMPOOL_SPAWN_CLUSTER_PROCS__,
+    "API_URL_PREFIX": "__MEMPOOL_API_URL_PREFIX__",
+    "POLL_RATE_MS": __MEMPOOL_POLL_RATE_MS__,
+    "CACHE_DIR": "__MEMPOOL_CACHE_DIR__",
+    "CLEAR_PROTECTION_MINUTES": __MEMPOOL_CLEAR_PROTECTION_MINUTES__,
+    "RECOMMENDED_FEE_PERCENTILE": __MEMPOOL_RECOMMENDED_FEE_PERCENTILE__,
+    "BLOCK_WEIGHT_UNITS": __MEMPOOL_BLOCK_WEIGHT_UNITS__,
+    "INITIAL_BLOCKS_AMOUNT": __MEMPOOL_INITIAL_BLOCKS_AMOUNT__,
+    "MEMPOOL_BLOCKS_AMOUNT": __MEMPOOL_MEMPOOL_BLOCKS_AMOUNT__,
+    "PRICE_FEED_UPDATE_INTERVAL": __MEMPOOL_PRICE_FEED_UPDATE_INTERVAL__,
+    "USE_SECOND_NODE_FOR_MINFEE": __MEMPOOL_USE_SECOND_NODE_FOR_MINFEE__,
+    "EXTERNAL_ASSETS": __MEMPOOL_EXTERNAL_ASSETS__
   },
   "CORE_RPC": {
-    "HOST": "__BITCOIN_MAINNET_RPC_HOST__",
-    "PORT": __BITCOIN_MAINNET_RPC_PORT__,
-    "USERNAME": "__BITCOIN_MAINNET_RPC_USER__",
-    "PASSWORD": "__BITCOIN_MAINNET_RPC_PASS__"
+    "HOST": "__CORE_RPC_HOST__",
+    "PORT": __CORE_RPC_PORT__,
+    "USERNAME": "__CORE_RPC_USERNAME__",
+    "PASSWORD": "__CORE_RPC_PASSWORD__"
   },
   "ELECTRUM": {
-    "HOST": "__ELECTRUM_MAINNET_HTTP_HOST__",
-    "PORT": __ELECTRUM_MAINNET_HTTP_PORT__,
-    "TLS_ENABLED": __ELECTRUM_MAINNET_TLS_ENABLED__
+    "HOST": "__ELECTRUM_HOST__",
+    "PORT": __ELECTRUM_PORT__,
+    "TLS_ENABLED": __ELECTRUM_TLS_ENABLED__
   },
   "ESPLORA": {
-    "REST_API_URL": "http://127.0.0.1:3000"
+    "REST_API_URL": "__ESPLORA_REST_API_URL__"
+  },
+  "SECOND_CORE_RPC": {
+    "HOST": "__SECOND_CORE_RPC_HOST__",
+    "PORT": __SECOND_CORE_RPC_PORT__,
+    "USERNAME": "__SECOND_CORE_RPC_USERNAME__",
+    "PASSWORD": "__SECOND_CORE_RPC_PASSWORD__"
   },
   "DATABASE": {
-    "ENABLED": true,
-    "HOST": "__MYSQL_HOST__",
-    "PORT": __MYSQL_PORT__,
-    "DATABASE": "__MYSQL_DATABASE__",
-    "USERNAME": "__MYSQL_USERNAME__",
-    "PASSWORD": "__MYSQL_PASSWORD__"
+    "ENABLED": __DATABASE_ENABLED__,
+    "HOST": "__DATABASE_HOST__",
+    "PORT": __DATABASE_PORT__,
+    "DATABASE": "__DATABASE_DATABASE__",
+    "USERNAME": "__DATABASE_USERNAME__",
+    "PASSWORD": "__DATABASE_PASSWORD__"
+  },
+  "SYSLOG": {
+    "ENABLED": __SYSLOG_ENABLED__,
+    "HOST": "__SYSLOG_HOST__",
+    "PORT": __SYSLOG_PORT__,
+    "MIN_PRIORITY": "__SYSLOG_MIN_PRIORITY__",
+    "FACILITY": "__SYSLOG_FACILITY__"
   },
   "STATISTICS": {
-    "ENABLED": true,
-    "TX_PER_SECOND_SAMPLE_PERIOD": 150
+    "ENABLED": __STATISTICS_ENABLED__,
+    "TX_PER_SECOND_SAMPLE_PERIOD": __STATISTICS_TX_PER_SECOND_SAMPLE_PERIOD__
+  },
+  "BISQ": {
+    "ENABLED": __BISQ_ENABLED__,
+    "DATA_PATH": "__BISQ_DATA_PATH__"
   }
 }

docker/backend/start.sh

@@ -1,41 +1,116 @@
 #!/bin/sh
 
-#MEMPOOL
-__MEMPOOL_BACKEND_MAINNET_HTTP_PORT__=${BACKEND_MAINNET_HTTP_PORT:=8999}
-__MEMPOOL_BACKEND_MAINNET_CACHE_DIR__=${CACHE_DIR:=./cache}
-__MEMPOOL_BACKEND_CLEAR_PROTECTION_MINUTES__=${MEMPOOL_CLEAR_PROTECTION_MINUTES:=20}
-# BITCOIN
-__BITCOIN_MAINNET_RPC_HOST__=${RPC_HOST:=127.0.0.1}
-__BITCOIN_MAINNET_RPC_PORT__=${RPC_PORT:=8332}
-__BITCOIN_MAINNET_RPC_USER__=${RPC_USER:=mempool}
-__BITCOIN_MAINNET_RPC_PASS__=${RPC_PASS:=mempool}
+# MEMPOOL
+__MEMPOOL_NETWORK__=${MEMPOOL_NETWORK:=mainnet}
+__MEMPOOL_BACKEND__=${MEMPOOL_BACKEND:=electrum}
+__MEMPOOL_HTTP_PORT__=${BACKEND_HTTP_PORT:=8999}
+__MEMPOOL_SPAWN_CLUSTER_PROCS__=${MEMPOOL_SPAWN_CLUSTER_PROCS:=0}
+__MEMPOOL_API_URL_PREFIX__=${MEMPOOL_API_URL_PREFIX:=/api/v1/}
+__MEMPOOL_POLL_RATE_MS__=${MEMPOOL_POLL_RATE_MS:=2000}
+__MEMPOOL_CACHE_DIR__=${MEMPOOL_CACHE_DIR:=./cache}
+__MEMPOOL_CLEAR_PROTECTION_MINUTES__=${MEMPOOL_CLEAR_PROTECTION_MINUTES:=20}
+__MEMPOOL_RECOMMENDED_FEE_PERCENTILE__=${MEMPOOL_RECOMMENDED_FEE_PERCENTILE:=50}
+__MEMPOOL_BLOCK_WEIGHT_UNITS__=${MEMPOOL_BLOCK_WEIGHT_UNITS:=4000000}
+__MEMPOOL_INITIAL_BLOCKS_AMOUNT__=${MEMPOOL_INITIAL_BLOCKS_AMOUNT:=8}
+__MEMPOOL_MEMPOOL_BLOCKS_AMOUNT__=${MEMPOOL_MEMPOOL_BLOCKS_AMOUNT:=8}
+__MEMPOOL_PRICE_FEED_UPDATE_INTERVAL__=${MEMPOOL_PRICE_FEED_UPDATE_INTERVAL:=3600}
+__MEMPOOL_USE_SECOND_NODE_FOR_MINFEE__=${MEMPOOL_USE_SECOND_NODE_FOR_MINFEE:=false}
+__MEMPOOL_EXTERNAL_ASSETS__=${MEMPOOL_EXTERNAL_ASSETS:=[]}
+
+# CORE_RPC
+__CORE_RPC_HOST__=${CORE_RPC_HOST:=127.0.0.1}
+__CORE_RPC_PORT__=${CORE_RPC_PORT:=8332}
+__CORE_RPC_USERNAME__=${CORE_RPC_USERNAME:=mempool}
+__CORE_RPC_PASSWORD__=${CORE_RPC_PASSWORD:=mempool}
+
 # ELECTRUM
-__ELECTRUM_MAINNET_HTTP_HOST__=${ELECTRUM_HOST:=127.0.0.1}
-__ELECTRUM_MAINNET_HTTP_PORT__=${ELECTRUM_PORT:=50002} # 50001?
-__ELECTRUM_MAINNET_TLS_ENABLED__=${ELECTRUM_TLS:=false}
-# MYSQL
-__MYSQL_HOST__=${MYSQL_HOST:=127.0.0.1}
-__MYSQL_PORT__=${MYSQL_PORT:=3306}
-__MYSQL_DATABASE__=${MYSQL_DATABASE:=mempool}
-__MYSQL_USERNAME__=${MYSQL_USER:=mempool}
-__MYSQL_PASSWORD__=${MYSQL_PASS:=mempool}
+__ELECTRUM_HOST__=${ELECTRUM_HOST:=127.0.0.1}
+__ELECTRUM_PORT__=${ELECTRUM_PORT:=50002}
+__ELECTRUM_TLS_ENABLED__=${ELECTRUM_TLS:=false}
 
-mkdir -p "${__MEMPOOL_BACKEND_MAINNET_CACHE_DIR__}"
+# ESPLORA
+__ESPLORA_REST_API_URL__=${ESPLORA_REST_API_URL:=http://127.0.0.1:3000}
 
-sed -i "s/__BITCOIN_MAINNET_RPC_HOST__/${__BITCOIN_MAINNET_RPC_HOST__}/g" mempool-config.json
-sed -i "s/__BITCOIN_MAINNET_RPC_PORT__/${__BITCOIN_MAINNET_RPC_PORT__}/g" mempool-config.json
-sed -i "s/__BITCOIN_MAINNET_RPC_USER__/${__BITCOIN_MAINNET_RPC_USER__}/g" mempool-config.json
-sed -i "s/__BITCOIN_MAINNET_RPC_PASS__/${__BITCOIN_MAINNET_RPC_PASS__}/g" mempool-config.json
-sed -i "s/__ELECTRUM_MAINNET_HTTP_HOST__/${__ELECTRUM_MAINNET_HTTP_HOST__}/g" mempool-config.json
-sed -i "s/__ELECTRUM_MAINNET_HTTP_PORT__/${__ELECTRUM_MAINNET_HTTP_PORT__}/g" mempool-config.json
-sed -i "s/__ELECTRUM_MAINNET_TLS_ENABLED__/${__ELECTRUM_MAINNET_TLS_ENABLED__}/g" mempool-config.json
-sed -i "s/__MYSQL_HOST__/${__MYSQL_HOST__}/g" mempool-config.json
-sed -i "s/__MYSQL_PORT__/${__MYSQL_PORT__}/g" mempool-config.json
-sed -i "s/__MYSQL_DATABASE__/${__MYSQL_DATABASE__}/g" mempool-config.json
-sed -i "s/__MYSQL_USERNAME__/${__MYSQL_USERNAME__}/g" mempool-config.json
-sed -i "s/__MYSQL_PASSWORD__/${__MYSQL_PASSWORD__}/g" mempool-config.json
-sed -i "s!__MEMPOOL_BACKEND_MAINNET_CACHE_DIR__!${__MEMPOOL_BACKEND_MAINNET_CACHE_DIR__}!g" mempool-config.json
-sed -i "s/__MEMPOOL_BACKEND_MAINNET_HTTP_PORT__/${__MEMPOOL_BACKEND_MAINNET_HTTP_PORT__}/g" mempool-config.json
-sed -i "s/__MEMPOOL_BACKEND_CLEAR_PROTECTION_MINUTES__/${__MEMPOOL_BACKEND_CLEAR_PROTECTION_MINUTES__}/g" mempool-config.json
+# SECOND_CORE_RPC
+__SECOND_CORE_RPC_HOST__=${SECOND_CORE_RPC_HOST:=127.0.0.1}
+__SECOND_CORE_RPC_PORT__=${SECOND_CORE_RPC_PORT:=8332}
+__SECOND_CORE_RPC_USERNAME__=${SECOND_CORE_RPC_USERNAME:=mempool}
+__SECOND_CORE_RPC_PASSWORD__=${SECOND_CORE_RPC_PASSWORD:=mempool}
+
+# DATABASE
+__DATABASE_ENABLED__=${DATABASE_ENABLED:=true}
+__DATABASE_HOST__=${DATABASE_HOST:=127.0.0.1}
+__DATABASE_PORT__=${DATABASE_PORT:=3306}
+__DATABASE_DATABASE__=${DATABASE_DATABASE:=mempool}
+__DATABASE_USERNAME__=${DATABASE_USERNAME:=mempool}
+__DATABASE_PASSWORD__=${DATABASE_PASSWORD:=mempool}
+
+# SYSLOG
+__SYSLOG_ENABLED__=${SYSLOG_ENABLED:=false}
+__SYSLOG_HOST__=${SYSLOG_HOST:=127.0.0.1}
+__SYSLOG_PORT__=${SYSLOG_PORT:=514}
+__SYSLOG_MIN_PRIORITY__=${SYSLOG_MIN_PRIORITY:=info}
+__SYSLOG_FACILITY__=${SYSLOG_FACILITY:=local7}
+
+# STATISTICS
+__STATISTICS_ENABLED__=${STATISTICS_ENABLED:=true}
+__STATISTICS_TX_PER_SECOND_SAMPLE_PERIOD__=${STATISTICS_TX_PER_SECOND_SAMPLE_PERIOD:=150}
+
+# BISQ
+__BISQ_ENABLED__=${BISQ_ENABLED:=false}
+__BISQ_DATA_PATH__=${BISQ_DATA_PATH:=/bisq/statsnode-data/btc_mainnet/db}
+
+mkdir -p "${__MEMPOOL_CACHE_DIR__}"
+
+sed -i "s/__MEMPOOL_NETWORK__/${__MEMPOOL_NETWORK__}/g" mempool-config.json
+sed -i "s/__MEMPOOL_BACKEND__/${__MEMPOOL_BACKEND__}/g" mempool-config.json
+sed -i "s/__MEMPOOL_HTTP_PORT__/${__MEMPOOL_HTTP_PORT__}/g" mempool-config.json
+sed -i "s/__MEMPOOL_SPAWN_CLUSTER_PROCS__/${__MEMPOOL_SPAWN_CLUSTER_PROCS__}/g" mempool-config.json
+sed -i "s!__MEMPOOL_API_URL_PREFIX__!${__MEMPOOL_API_URL_PREFIX__}!g" mempool-config.json
+sed -i "s/__MEMPOOL_POLL_RATE_MS__/${__MEMPOOL_POLL_RATE_MS__}/g" mempool-config.json
+sed -i "s!__MEMPOOL_CACHE_DIR__!${__MEMPOOL_CACHE_DIR__}!g" mempool-config.json
+sed -i "s/__MEMPOOL_CLEAR_PROTECTION_MINUTES__/${__MEMPOOL_CLEAR_PROTECTION_MINUTES__}/g" mempool-config.json
+sed -i "s/__MEMPOOL_RECOMMENDED_FEE_PERCENTILE__/${__MEMPOOL_RECOMMENDED_FEE_PERCENTILE__}/g" mempool-config.json
+sed -i "s/__MEMPOOL_BLOCK_WEIGHT_UNITS__/${__MEMPOOL_BLOCK_WEIGHT_UNITS__}/g" mempool-config.json
+sed -i "s/__MEMPOOL_INITIAL_BLOCKS_AMOUNT__/${__MEMPOOL_INITIAL_BLOCKS_AMOUNT__}/g" mempool-config.json
+sed -i "s/__MEMPOOL_MEMPOOL_BLOCKS_AMOUNT__/${__MEMPOOL_MEMPOOL_BLOCKS_AMOUNT__}/g" mempool-config.json
+sed -i "s/__MEMPOOL_PRICE_FEED_UPDATE_INTERVAL__/${__MEMPOOL_PRICE_FEED_UPDATE_INTERVAL__}/g" mempool-config.json
+sed -i "s/__MEMPOOL_USE_SECOND_NODE_FOR_MINFEE__/${__MEMPOOL_USE_SECOND_NODE_FOR_MINFEE__}/g" mempool-config.json
+sed -i "s/__MEMPOOL_EXTERNAL_ASSETS__/${__MEMPOOL_EXTERNAL_ASSETS__}/g" mempool-config.json
+
+sed -i "s/__CORE_RPC_HOST__/${__CORE_RPC_HOST__}/g" mempool-config.json
+sed -i "s/__CORE_RPC_PORT__/${__CORE_RPC_PORT__}/g" mempool-config.json
+sed -i "s/__CORE_RPC_USERNAME__/${__CORE_RPC_USERNAME__}/g" mempool-config.json
+sed -i "s/__CORE_RPC_PASSWORD__/${__CORE_RPC_PASSWORD__}/g" mempool-config.json
+
+sed -i "s/__ELECTRUM_HOST__/${__ELECTRUM_HOST__}/g" mempool-config.json
+sed -i "s/__ELECTRUM_PORT__/${__ELECTRUM_PORT__}/g" mempool-config.json
+sed -i "s/__ELECTRUM_TLS_ENABLED__/${__ELECTRUM_TLS_ENABLED__}/g" mempool-config.json
+
+sed -i "s!__ESPLORA_REST_API_URL__!${__ESPLORA_REST_API_URL__}!g" mempool-config.json
+
+sed -i "s/__SECOND_CORE_RPC_HOST__/${__SECOND_CORE_RPC_HOST__}/g" mempool-config.json
+sed -i "s/__SECOND_CORE_RPC_PORT__/${__SECOND_CORE_RPC_PORT__}/g" mempool-config.json
+sed -i "s/__SECOND_CORE_RPC_USERNAME__/${__SECOND_CORE_RPC_USERNAME__}/g" mempool-config.json
+sed -i "s/__SECOND_CORE_RPC_PASSWORD__/${__SECOND_CORE_RPC_PASSWORD__}/g" mempool-config.json
+
+sed -i "s/__DATABASE_ENABLED__/${__DATABASE_ENABLED__}/g" mempool-config.json
+sed -i "s/__DATABASE_HOST__/${__DATABASE_HOST__}/g" mempool-config.json
+sed -i "s/__DATABASE_PORT__/${__DATABASE_PORT__}/g" mempool-config.json
+sed -i "s/__DATABASE_DATABASE__/${__DATABASE_DATABASE__}/g" mempool-config.json
+sed -i "s/__DATABASE_USERNAME__/${__DATABASE_USERNAME__}/g" mempool-config.json
+sed -i "s/__DATABASE_PASSWORD__/${__DATABASE_PASSWORD__}/g" mempool-config.json
+
+sed -i "s/__SYSLOG_ENABLED__/${__SYSLOG_ENABLED__}/g" mempool-config.json
+sed -i "s/__SYSLOG_HOST__/${__SYSLOG_HOST__}/g" mempool-config.json
+sed -i "s/__SYSLOG_PORT__/${__SYSLOG_PORT__}/g" mempool-config.json
+sed -i "s/__SYSLOG_MIN_PRIORITY__/${__SYSLOG_MIN_PRIORITY__}/g" mempool-config.json
+sed -i "s/__SYSLOG_FACILITY__/${__SYSLOG_FACILITY__}/g" mempool-config.json
+
+sed -i "s/__STATISTICS_ENABLED__/${__STATISTICS_ENABLED__}/g" mempool-config.json
+sed -i "s/__STATISTICS_TX_PER_SECOND_SAMPLE_PERIOD__/${__STATISTICS_TX_PER_SECOND_SAMPLE_PERIOD__}/g" mempool-config.json
+
+sed -i "s/__BISQ_ENABLED__/${__BISQ_ENABLED__}/g" mempool-config.json
+sed -i "s!__BISQ_DATA_PATH__!${__BISQ_DATA_PATH__}!g" mempool-config.json
 
 node /backend/dist/index.js

docker/docker-compose.yml

@@ -1,23 +1,10 @@
 version: "3.7"
 
 services:
-
-  electrum:
-    build:
-      context: .
-      dockerfile: docker/electrum/Dockerfile
-    user: "1000:1000"
-    restart: on-failure
-    command: ""
-    ports:
-      - 50001:50001
-      - 50002:50002
-      - 4224:4224
-      - 8332:8332
-    environment:
-      ELECTRUM: "electrum"
-      # add electrs configs
   web:
+    environment:
+      FRONTEND_HTTP_PORT: "8080"
+      BACKEND_MAINNET_HTTP_HOST: "api"
     image: mempool/frontend:latest
     user: "1000:1000"
     restart: on-failure
@@ -25,10 +12,19 @@ services:
     command: "./wait-for db:3306 --timeout=720 -- nginx -g 'daemon off;'"
     ports:
       - 80:8080
-    environment:
-      FRONTEND_HTTP_PORT: "8080"
-      BACKEND_MAINNET_HTTP_HOST: "api"
   api:
+    environment:
+      MEMPOOL_BACKEND: "none"
+      CORE_RPC_HOST: "172.27.0.1"
+      CORE_RPC_PORT: "8332"
+      CORE_RPC_USERNAME: "mempool"
+      CORE_RPC_PASSWORD: "mempool"
+      DATABASE_ENABLED: "true"
+      DATABASE_HOST: "db"
+      DATABASE_DATABASE: "mempool"
+      DATABASE_USERNAME: "mempool"
+      DATABASE_PASSWORD: "mempool"
+      STATISTICS_ENABLED: "true"
     image: mempool/backend:latest
     user: "1000:1000"
     restart: on-failure
@@ -36,32 +32,15 @@ services:
     command: "./wait-for-it.sh db:3306 --timeout=720 --strict -- ./start.sh"
     volumes:
       - ./data:/backend/cache
+  db:
     environment:
-      RPC_HOST: "127.0.0.1"
-      RPC_PORT: "8332"
-      RPC_USER: "mempool"
-      RPC_PASS: "mempool"
-      ELECTRUM_HOST: "127.0.0.1"
-      ELECTRUM_PORT: "50002"
-      ELECTRUM_TLS: "false"
-      MYSQL_HOST: "db"
-      MYSQL_PORT: "3306"
       MYSQL_DATABASE: "mempool"
       MYSQL_USER: "mempool"
-      MYSQL_PASS: "mempool"
-      BACKEND_MAINNET_HTTP_PORT: "8999"
-      CACHE_DIR: "/backend/cache"
-      MEMPOOL_CLEAR_PROTECTION_MINUTES: "20"
-  db:
+      MYSQL_PASSWORD: "mempool"
+      MYSQL_ROOT_PASSWORD: "admin"
     image: mariadb:10.5.8
     user: "1000:1000"
     restart: on-failure
     stop_grace_period: 1m
     volumes:
       - ./mysql/data:/var/lib/mysql
-      - ./mysql/db-scripts:/docker-entrypoint-initdb.d
-    environment:
-      MYSQL_DATABASE: "mempool"
-      MYSQL_USER: "mempool"
-      MYSQL_PASSWORD: "mempool"
-      MYSQL_ROOT_PASSWORD: "admin"

docker/frontend/Dockerfile

@@ -1,4 +1,8 @@
-FROM node:12-buster-slim AS builder
+FROM node:16.10.0-buster-slim AS builder
+
+ARG commitHash
+ENV DOCKER_COMMIT_HASH=${commitHash}
+ENV CYPRESS_INSTALL_BINARY=0
 
 WORKDIR /build
 COPY . .

docker/init.sh

@@ -2,7 +2,7 @@
 
 #backend
 gitMaster="\.\.\/\.git\/refs\/heads\/master"
-git ls-remote https://github.com/mempool/mempool.git $1 | awk '{ print $1}' > ./backend/master
+git ls-remote https://github.com/mempool/mempool.git "$1^{}" | awk '{ print $1}' > ./backend/master
 cp ./docker/backend/* ./backend/
 sed -i "s/${gitMaster}/master/g" ./backend/src/api/backend-info.ts
 

docker/scripts/get_image_digest.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+VERSION=$1
+IMAGE=""
+
+if [ -z "${VERSION}" ]; then
+    echo "no version provided (i.e, v2.2.0), using latest tag"
+    VERSION="latest"
+fi
+
+for package in frontend backend; do
+  PACKAGE=mempool/"$package"
+  IMAGE="$PACKAGE":"$VERSION"
+  HASH=`docker pull $IMAGE > /dev/null && docker inspect $IMAGE | sed -n '/RepoDigests/{n;p;}' | grep -o '[0-9a-f]\{64\}'`
+  if [ -n "${HASH}" ]; then
+    echo "$IMAGE"@sha256:"$HASH"
+  fi
+done 

frontend/.gitignore

@@ -34,6 +34,7 @@ speed-measure-plugin.json
 .history/*
 
 # misc
+/.angular/cache
 /.sass-cache
 /connect.lock
 /coverage
@@ -49,8 +50,18 @@ Thumbs.db
 
 src/resources/assets.json
 src/resources/assets.minimal.json
+src/resources/assets-testnet.json
+src/resources/assets-testnet.minimal.json
 src/resources/pools.json
 
 # environment config
 mempool-frontend-config.json
 generated-config.js
+
+# e2e results
+cypress/videos
+cypress/screenshots
+
+# Base index
+src/index.html
+

frontend/README.md

@@ -1,11 +1,50 @@
 # mempool-frontend
 
-## Transifex Project
+## Contributing
+
+This package is used for the https://mempool.space, https://liquid.network and https://bisq.markets websites - there are npm scripts to setup all three, which effectively change how BASE_MODULE is  configured:
+
+```
+$ npm run config:defaults:mempool
+$ npm run config:defaults:liquid
+$ npm run config:defaults:bisq
+```
+
+Changes that affect the frontend codebase only can be done using the production backend so you don't need to spin up the entire Mempool infrastructure. This is very convenient in case you want to quickly improve the UI, fix typos or implement new features that don't require any backend changes.
+
+Make your changes, install the project dependencies and run the frontend server as follows:
+
+```
+$ npm install
+$ npm run serve:local-prod
+```
+
+The frontend will be available at http://localhost:4200/ and all API requests will be proxied to the production server at https://mempool.space
+
+After making your changes, you can run our end-to-end automation suite and check for possible regressions:
+
+Headless:
+
+```
+$ npm run config:defaults:mempool && npm run cypress:run
+```
+
+Interactive:
+
+```
+$ npm run config:defaults:mempool && npm run cypress:open
+```
+
+This will open the Cypress test runner, where you can select any of the test files to run.
+
+If all tests are green, submit your PR and it will be reviewed by someone on the team as soon as possible.
+
+## Translations: Transifex Project
 
 The mempool frontend strings are localized into 20+ locales:
 https://www.transifex.com/mempool/mempool/dashboard/
 
-## Translators
+### Translators
 
 * Arabic @baro0k
 * Czech @pixelmade2
@@ -22,11 +61,16 @@ https://www.transifex.com/mempool/mempool/dashboard/
 * Dutch @m__btc
 * Japanese @wiz @japananon
 * Norwegian @T82771355
+* Polish @maciejsoltysiak
 * Portugese @jgcastro1985
 * Slovenian @thepkbadger
 * Finnish @bio_bitcoin
 * Swedish @softsimon_
+* Thai @Gusb3ll
 * Turkish @stackmore
 * Ukrainian @volbil
 * Vietnamese @bitcoin_vietnam
 * Chinese @wdljt
+* Russian @TonyCrusoe @Bitconan
+* Romanian @mirceavesa
+* Macedonian @SkechBoy

frontend/angular.json

@@ -1,5 +1,8 @@
 {
   "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "cli": {
+    "analytics": false
+  },
   "version": 1,
   "newProjectRoot": "projects",
   "projects": {
@@ -15,14 +18,18 @@
       "prefix": "app",
       "i18n": {
         "sourceLocale": {
-          "code":"en-US",
-          "baseHref":"/"
+          "code": "en-US",
+          "baseHref": "/"
         },
         "locales": {
           "ar": {
             "translation": "src/locale/messages.ar.xlf",
             "baseHref": "/ar/"
           },
+          "ca": {
+            "translation": "src/locale/messages.ca.xlf",
+            "baseHref": "/ca/"
+          },
           "cs": {
             "translation": "src/locale/messages.cs.xlf",
             "baseHref": "/cs/"
@@ -71,6 +78,10 @@
             "translation": "src/locale/messages.nb.xlf",
             "baseHref": "/nb/"
           },
+          "pl": {
+            "translation": "src/locale/messages.pl.xlf",
+            "baseHref": "/pl/"
+          },
           "pt": {
             "translation": "src/locale/messages.pt.xlf",
             "baseHref": "/pt/"
@@ -83,6 +94,10 @@
             "translation": "src/locale/messages.sv.xlf",
             "baseHref": "/sv/"
           },
+          "th": {
+            "translation": "src/locale/messages.th.xlf",
+            "baseHref": "/th/"
+          },
           "tr": {
             "translation": "src/locale/messages.tr.xlf",
             "baseHref": "/tr/"
@@ -103,9 +118,25 @@
             "translation": "src/locale/messages.hu.xlf",
             "baseHref": "/hu/"
           },
+          "mk": {
+            "translation": "src/locale/messages.mk.xlf",
+            "baseHref": "/mk/"
+          },
           "zh": {
             "translation": "src/locale/messages.zh.xlf",
             "baseHref": "/zh/"
+          },
+          "ro": {
+            "translation": "src/locale/messages.ro.xlf",
+            "baseHref": "/ro/"
+          },
+          "ru": {
+            "translation": "src/locale/messages.ru.xlf",
+            "baseHref": "/ru/"
+          },
+          "hi": {
+            "translation": "src/locale/messages.hi.xlf",
+            "baseHref": "/hi/"
           }
         }
       },
@@ -118,7 +149,6 @@
             "main": "src/main.ts",
             "polyfills": "src/polyfills.ts",
             "tsConfig": "tsconfig.app.json",
-            "aot": true,
             "assets": [
               "src/favicon.ico",
               "src/resources",
@@ -130,7 +160,13 @@
             ],
             "scripts": [
               "generated-config.js"
-            ]
+            ],
+            "vendorChunk": true,
+            "extractLicenses": false,
+            "buildOptimizer": false,
+            "sourceMap": true,
+            "optimization": false,
+            "namedChunks": true
           },
           "configurations": {
             "production": {
@@ -140,7 +176,14 @@
                   "with": "src/environments/environment.prod.ts"
                 }
               ],
-              "optimization": true,
+              "optimization": {
+                "scripts": true,
+                "styles": {
+                  "minify": true,
+                  "inlineCritical": false
+                },
+                "fonts": true
+              },
               "outputHashing": "all",
               "sourceMap": false,
               "namedChunks": false,
@@ -159,7 +202,8 @@
                 }
               ]
             }
-          }
+          },
+          "defaultConfiguration": ""
         },
         "serve": {
           "builder": "@angular-devkit/build-angular:dev-server",
@@ -169,6 +213,22 @@
           "configurations": {
             "production": {
               "browserTarget": "mempool:build:production"
+            },
+            "local": {
+              "proxyConfig": "proxy.conf.local.js",
+              "verbose": true
+            },
+            "staging": {
+              "proxyConfig": "proxy.conf.js",
+              "disableHostCheck": true,
+              "host": "0.0.0.0",
+              "verbose": true
+            },
+            "local-prod": {
+              "proxyConfig": "proxy.conf.js",
+              "disableHostCheck": true,
+              "host": "0.0.0.0",
+              "verbose": false
             }
           }
         },
@@ -195,25 +255,12 @@
             "scripts": []
           }
         },
-        "lint": {
-          "builder": "@angular-devkit/build-angular:tslint",
-          "options": {
-            "tsConfig": [
-              "tsconfig.app.json",
-              "tsconfig.spec.json",
-              "e2e/tsconfig.json",
-              "tsconfig.server.json"
-            ],
-            "exclude": [
-              "**/node_modules/**"
-            ]
-          }
-        },
         "e2e": {
-          "builder": "@angular-devkit/build-angular:protractor",
+          "builder": "@cypress/schematic:cypress",
           "options": {
-            "protractorConfig": "e2e/protractor.conf.js",
-            "devServerTarget": "mempool:serve"
+            "devServerTarget": "mempool:serve:local-prod",
+            "watch": true,
+            "headless": false
           },
           "configurations": {
             "production": {
@@ -226,7 +273,9 @@
           "options": {
             "outputPath": "dist/mempool/server",
             "main": "server.ts",
-            "tsConfig": "tsconfig.server.json"
+            "tsConfig": "tsconfig.server.json",
+            "sourceMap": true,
+            "optimization": false
           },
           "configurations": {
             "production": {
@@ -241,7 +290,8 @@
               "localize": true,
               "optimization": true
             }
-          }
+          },
+          "defaultConfiguration": ""
         },
         "serve-ssr": {
           "builder": "@nguniversal/builders:ssr-dev-server",
@@ -268,8 +318,27 @@
           "configurations": {
             "production": {}
           }
+        },
+        "cypress-run": {
+          "builder": "@cypress/schematic:cypress",
+          "options": {
+            "devServerTarget": "mempool:serve"
+          },
+          "configurations": {
+            "production": {
+              "devServerTarget": "mempool:serve:production"
+            }
+          }
+        },
+        "cypress-open": {
+          "builder": "@cypress/schematic:cypress",
+          "options": {
+            "watch": true,
+            "headless": false
+          }
         }
       }
-    }},
+    }
+  },
   "defaultProject": "mempool"
 }

frontend/cypress.json

@@ -0,0 +1,16 @@
+{
+  "projectId": "ry4br7",
+  "integrationFolder": "cypress/integration",
+  "supportFile": "cypress/support/index.ts",
+  "videosFolder": "cypress/videos",
+  "screenshotsFolder": "cypress/screenshots",
+  "pluginsFile": "cypress/plugins/index.js",
+  "fixturesFolder": "cypress/fixtures",
+  "baseUrl": "http://localhost:4200",
+  "video": false,
+  "retries": {
+    "runMode": 3,
+    "openMode": 0
+  },
+  "chromeWebSecurity": false
+}

frontend/cypress/fixtures/assets.json

@@ -0,0 +1,119 @@
+{
+    "f59c5f3e8141f322276daa63ed5f307085808aea6d4ef9ba61e28154533fdec7": {
+      "asset_id": "f59c5f3e8141f322276daa63ed5f307085808aea6d4ef9ba61e28154533fdec7",
+      "contract": {
+        "entity": {
+          "domain": "listedreserve.com"
+        },
+        "issuer_pubkey": "031cc579d142a03b33cdd745922112821c16e5e8b74e3bd57f16f7fda872b6f1d0",
+        "name": "Liquid AUD",
+        "precision": 2,
+        "ticker": "AUDL",
+        "version": 0
+      },
+      "issuance_txin": {
+        "txid": "e5c5144ba3dc48259ae29023fe9f7775dec1fc049f456dd3d1f7178e31901fb5",
+        "vin": 0
+      },
+      "issuance_prevout": {
+        "txid": "ed48be2e035ffa425d2c6faaa82b6a7b648aed1246b6ac76c72e0408db8cf057",
+        "vout": 1
+      },
+      "name": "Liquid AUD",
+      "ticker": "AUDL",
+      "precision": 2,
+      "entity": {
+        "domain": "listedreserve.com"
+      },
+      "version": 0,
+      "issuer_pubkey": "031cc579d142a03b33cdd745922112821c16e5e8b74e3bd57f16f7fda872b6f1d0"
+    },
+    "0e99c1a6da379d1f4151fb9df90449d40d0608f6cb33a5bcbfc8c265f42bab0a": {
+      "asset_id": "0e99c1a6da379d1f4151fb9df90449d40d0608f6cb33a5bcbfc8c265f42bab0a",
+      "contract": {
+        "entity": {
+          "domain": "lcad.bullbitcoin.com"
+        },
+        "issuer_pubkey": "027fa34026195b05f3aa217335416811dca4f5b579d00271a1bb6304c0152458a8",
+        "name": "Liquid CAD",
+        "precision": 8,
+        "ticker": "LCAD",
+        "version": 0
+      },
+      "issuance_txin": {
+        "txid": "238badf029cadcf546d90ce23c7eafc2fa2082585c9bd62dc26f1aa11c7bd850",
+        "vin": 0
+      },
+      "issuance_prevout": {
+        "txid": "a87f13917c08c7ccd8eddb1830c5c9a2bcd59c7d167e9d528659ba40808a6b76",
+        "vout": 0
+      },
+      "name": "Liquid CAD",
+      "ticker": "LCAD",
+      "precision": 8,
+      "entity": {
+        "domain": "lcad.bullbitcoin.com"
+      },
+      "version": 0,
+      "issuer_pubkey": "027fa34026195b05f3aa217335416811dca4f5b579d00271a1bb6304c0152458a8"
+    },
+    "3438ecb49fc45c08e687de4749ed628c511e326460ea4336794e1cf02741329e": {
+      "asset_id": "3438ecb49fc45c08e687de4749ed628c511e326460ea4336794e1cf02741329e",
+      "contract": {
+        "entity": {
+          "domain": "settlenet.io"
+        },
+        "issuer_pubkey": "037b09d542bf7cea6a19fa624b4441790c1a6e44823597bf190e981a846a196541",
+        "name": "SETTLENET JPY Stablecoin by Crypto Garage",
+        "precision": 0,
+        "ticker": "JPYS",
+        "version": 0
+      },
+      "issuance_txin": {
+        "txid": "e33ad5ce8879297d8bfa7daa193920b94abd3fb12f4e8dade9543dbb292387cb",
+        "vin": 0
+      },
+      "issuance_prevout": {
+        "txid": "328c4fadd817ea75e634e3648eb4be0bf7e669539b8da921c0f77af3bc148894",
+        "vout": 1
+      },
+      "name": "SETTLENET JPY Stablecoin by Crypto Garage",
+      "ticker": "JPYS",
+      "precision": 0,
+      "entity": {
+        "domain": "settlenet.io"
+      },
+      "version": 0,
+      "issuer_pubkey": "037b09d542bf7cea6a19fa624b4441790c1a6e44823597bf190e981a846a196541"
+    },
+    "ce091c998b83c78bb71a632313ba3760f1763d9cfcffae02258ffa9865a37bd2": {
+      "asset_id": "ce091c998b83c78bb71a632313ba3760f1763d9cfcffae02258ffa9865a37bd2",
+      "contract": {
+        "entity": {
+          "domain": "tether.to"
+        },
+        "issuer_pubkey": "0337cceec0beea0232ebe14cba0197a9fbd45fcf2ec946749de920e71434c2b904",
+        "name": "Tether USD",
+        "precision": 8,
+        "ticker": "USDt",
+        "version": 0
+      },
+      "issuance_txin": {
+        "txid": "abb4080d91849e933ee2ed65da6b436f7c385cf363fb4aa08399f1e27c58ff3d",
+        "vin": 0
+      },
+      "issuance_prevout": {
+        "txid": "9596d259270ef5bac0020435e6d859aea633409483ba64e232b8ba04ce288668",
+        "vout": 0
+      },
+      "name": "Tether USD",
+      "ticker": "USDt",
+      "precision": 8,
+      "entity": {
+        "domain": "tether.to"
+      },
+      "version": 0,
+      "issuer_pubkey": "0337cceec0beea0232ebe14cba0197a9fbd45fcf2ec946749de920e71434c2b904"
+    }
+  }
+  

frontend/cypress/fixtures/assets.minimal.json

@@ -0,0 +1,33 @@
+{
+    "f59c5f3e8141f322276daa63ed5f307085808aea6d4ef9ba61e28154533fdec7": [
+      "listedreserve.com",
+      "AUDL",
+      "Liquid AUD",
+      2
+    ],
+    "0e99c1a6da379d1f4151fb9df90449d40d0608f6cb33a5bcbfc8c265f42bab0a": [
+      "lcad.bullbitcoin.com",
+      "LCAD",
+      "Liquid CAD",
+      8
+    ],
+    "6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d": [
+      null,
+      "L-BTC",
+      "Liquid Bitcoin",
+      8
+    ],
+    "ce091c998b83c78bb71a632313ba3760f1763d9cfcffae02258ffa9865a37bd2": [
+      "tether.to",
+      "USDt",
+      "Tether USD",
+      8
+    ],
+    "3438ecb49fc45c08e687de4749ed628c511e326460ea4336794e1cf02741329e": [
+      "settlenet.io",
+      "JPYS",
+      "SETTLENET JPY Stablecoin by Crypto Garage",
+      0
+    ]
+  }
+  

frontend/cypress/fixtures/mainnet_live2hchart.json

@@ -0,0 +1 @@
+{"live-2h-chart":{"id":1319298,"added":"2021-07-23T18:27:34.000Z","unconfirmed_transactions":546,"tx_per_second":3.93333,"vbytes_per_second":1926,"mempool_byte_weight":1106656,"total_fee":6198583,"vsizes":[255,18128,43701,58534,17144,5532,4483,1759,2394,1089,1683,7409,751,101010,1151,592,1497,703,1369,4747,800,1221,0,0,712,0,0,0,0,0,0,0,0,0,0,0,0,0]}}

frontend/cypress/fixtures/mainnet_rbf.json

@@ -0,0 +1,52 @@
+{
+  "rbfTransaction": {
+    "txid": "8913ec7ba0ede285dbd120e46f6d61a28f2903c10814a6f6c4f97d0edf3e1f46",
+    "version": 2,
+    "locktime": 632699,
+    "vin": [
+      {
+        "txid": "02238126a63ea2669c5f378012180ef8b54402a949316f9b2f1352c51730a086",
+        "vout": 0,
+        "prevout": {
+          "scriptpubkey": "a914f8e495456956c833e5e8c69b9a9dc041aa14c72f87",
+          "scriptpubkey_asm": "OP_HASH160 OP_PUSHBYTES_20 f8e495456956c833e5e8c69b9a9dc041aa14c72f OP_EQUAL",
+          "scriptpubkey_type": "p2sh",
+          "scriptpubkey_address": "3QP3LMD8veT5GtWV83Nosif2Bhr73857VB",
+          "value": 25000000
+        },
+        "scriptsig": "22002043288fbbc0fc5efa86c229dbb7d88ab78d57957c65b5d5ceaece70838976ad1b",
+        "scriptsig_asm": "OP_PUSHBYTES_34 002043288fbbc0fc5efa86c229dbb7d88ab78d57957c65b5d5ceaece70838976ad1b",
+        "witness": [
+          "",
+          "3044022009e2d3a8e645f65bc89c8492cd9c08e6fb02609fd402214884a754a1970145340220575bb325429def59f3a3f1e22d9740a3feecbe97438ff3bb5796b2c46b3c477f01",
+          "3044022039c34372882da8fc1c1243bd72b5e7e5e6870301ef56bdebb87bc647fb50f9b5022071a704ee77d742f78b10e45be675d4c45a5f31e884139e75c975144fde70e41701",
+          "522102346eb7133f11e0dc279bc592d5ac948a91676372a6144c9ae2085625d7fbf70421021b9508a458f9d59be4eb8cc87ad582c3b494106fb1d4ec22801569be0700eb7b52ae"
+        ],
+        "is_coinbase": false,
+        "sequence": 4294967293,
+        "inner_redeemscript_asm": "OP_0 OP_PUSHBYTES_32 43288fbbc0fc5efa86c229dbb7d88ab78d57957c65b5d5ceaece70838976ad1b",
+        "inner_witnessscript_asm": "OP_PUSHNUM_2 OP_PUSHBYTES_33 02346eb7133f11e0dc279bc592d5ac948a91676372a6144c9ae2085625d7fbf704 OP_PUSHBYTES_33 021b9508a458f9d59be4eb8cc87ad582c3b494106fb1d4ec22801569be0700eb7b OP_PUSHNUM_2 OP_CHECKMULTISIG"
+      }
+    ],
+    "vout": [
+      {
+        "scriptpubkey": "a914fd4e5e59dd5cf2dc48eaedf1a2a1650ca1ce9d7f87",
+        "scriptpubkey_asm": "OP_HASH160 OP_PUSHBYTES_20 fd4e5e59dd5cf2dc48eaedf1a2a1650ca1ce9d7f OP_EQUAL",
+        "scriptpubkey_type": "p2sh",
+        "scriptpubkey_address": "3QnNmDhZS7toHA7bhhbTPBdtpLJoeecq5c",
+        "value": 13986350
+      },
+      {
+        "scriptpubkey": "76a914edc93d0446deec1c2d514f3a490f050096e74e0e88ac",
+        "scriptpubkey_asm": "OP_DUP OP_HASH160 OP_PUSHBYTES_20 edc93d0446deec1c2d514f3a490f050096e74e0e OP_EQUALVERIFY OP_CHECKSIG",
+        "scriptpubkey_type": "p2pkh",
+        "scriptpubkey_address": "1NgJDkTUqJxxCAAZrrsC87kWag5kphrRtM",
+        "value": 11000000
+      }
+    ],
+    "size": 372,
+    "weight": 828,
+    "fee": 1.5,
+    "status": { "confirmed": false }
+  }
+}

frontend/cypress/integration/bisq/bisq.spec.ts

@@ -0,0 +1,87 @@
+describe('Bisq', () => {
+    const baseModule = Cypress.env("BASE_MODULE");
+    const basePath = '';
+    
+    beforeEach(() => {
+        cy.intercept('/sockjs-node/info*').as('socket');
+        cy.intercept('/bisq/api/markets/hloc?market=btc_usd&interval=day').as('hloc');
+        cy.intercept('/bisq/api/markets/ticker').as('ticker');
+        cy.intercept('/bisq/api/markets/markets').as('markets');
+        cy.intercept('/bisq/api/markets/volumes/7d').as('7d');
+        cy.intercept('/bisq/api/markets/trades?market=all').as('trades');
+        cy.intercept('/bisq/api/txs/*/*').as('txs');
+        cy.intercept('/bisq/api/blocks/*/*').as('blocks');
+        cy.intercept('/bisq/api/stats').as('stats');
+        
+        Cypress.Commands.add('waitForDashboard', () => {
+            cy.wait('@socket');
+            cy.wait('@hloc');
+            cy.wait('@ticker');
+            cy.wait('@markets');
+            cy.wait('@7d');
+            cy.wait('@trades');
+          });
+    });
+
+    if (baseModule === 'bisq') {
+
+        it('loads the dashboard', () => {
+            cy.visit(`${basePath}`);
+            cy.waitForSkeletonGone();
+        });
+
+        it('loads the transactions screen', () => {
+            cy.visit(`${basePath}`);
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(2) > a').click().then(() => {
+                cy.get('.table > tr').should('have.length', 50);
+            });
+        });
+
+        it('loads the blocks screen', () => {
+            cy.visit(`${basePath}`);
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(3) > a').click().then(() => {
+                cy.wait('@blocks');
+                cy.get('tbody tr').should('have.length', 10);
+            });
+        });
+
+        it('loads the stats screen', () => {
+            cy.visit(`${basePath}`);
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(4) > a').click().then(() => {
+                cy.wait('@stats');
+            });
+        });
+
+        it('loads the api screen', () => {
+            cy.visit(`${basePath}`);
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(5) > a').click().then(() => {
+                cy.get('.section-header').should('have.length.at.least', 1);
+                cy.get('.endpoint-container').should('have.length.at.least', 1);
+            });
+        });
+
+        it('shows blocks pagination with 5 pages (desktop)', () => {
+            cy.viewport(760, 800);
+            cy.visit(`${basePath}/blocks`);
+            cy.waitForSkeletonGone();
+            cy.get('tbody tr').should('have.length', 10);
+            // 5 pages + 4 buttons = 9 buttons
+            cy.get('.pagination-container ul.pagination').first().children().should('have.length', 9);
+        });
+
+        it('shows blocks pagination with 3 pages (mobile)', () => {
+            cy.viewport(669, 800);
+            cy.visit(`${basePath}/blocks`);
+            cy.waitForSkeletonGone();
+            cy.get('tbody tr').should('have.length', 10);
+            // 3 pages + 4 buttons = 7 buttons
+            cy.get('.pagination-container ul.pagination').first().children().should('have.length', 7);
+        });
+    } else {
+        it.skip(`Tests cannot be run on the selected BASE_MODULE ${baseModule}`);
+    }
+  });

frontend/cypress/integration/liquid/liquid.spec.ts

@@ -0,0 +1,201 @@
+describe('Liquid', () => {
+    const baseModule = Cypress.env("BASE_MODULE");
+    const basePath = '';
+
+    beforeEach(() => {
+        cy.intercept('/liquid/api/block/**').as('block');
+        cy.intercept('/liquid/api/blocks/').as('blocks');
+        cy.intercept('/liquid/api/tx/**/outspends').as('outspends');
+        cy.intercept('/liquid/api/block/**/txs/**').as('block-txs');
+        cy.intercept('/resources/pools.json').as('pools');
+
+        Cypress.Commands.add('waitForBlockData', () => {
+            cy.wait('@socket');
+            cy.wait('@block');
+            cy.wait('@outspends');
+          });
+    });
+
+    if (baseModule === 'liquid') {
+
+        it('check first mempool block after skeleton loads', () => {
+            cy.visit(`${basePath}`);
+            cy.waitForSkeletonGone();
+            cy.get('#mempool-block-0 > .blockLink').should('exist');
+        });
+
+        it('loads the dashboard', () => {
+            cy.visit(`${basePath}`);
+            cy.waitForSkeletonGone();
+        });
+
+        it('loads the blocks page', () => {
+            cy.visit(`${basePath}/blocks`);
+            cy.waitForSkeletonGone();
+        });
+
+        it('loads a specific block page', () => {
+            cy.visit(`${basePath}/block/7e1369a23a5ab861e7bdede2aadcccae4ea873ffd9caf11c7c5541eb5bcdff54`);
+            cy.waitForSkeletonGone();
+        });
+
+        it('loads the graphs page', () => {
+            cy.visit(`${basePath}/graphs`);
+            cy.waitForSkeletonGone();
+        });
+
+        it('loads the tv page - desktop', () => {
+            cy.visit(`${basePath}`);
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(3) > a').click().then(() => {
+                cy.wait(1000);
+            });
+        });
+
+        it('loads the graphs page - mobile', () => {
+            cy.visit(`${basePath}`)
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(3) > a').click().then(() => {
+                cy.viewport('iphone-6');
+                cy.wait(1000);
+                cy.get('.tv-only').should('not.exist');
+            });
+        });
+
+        it('renders unconfidential addresses correctly on mobile', () => {
+            cy.viewport('iphone-6');
+            cy.visit(`${basePath}/address/ex1qqmmjdwrlg59c8q4l75sj6wedjx57tj5grt8pat`);
+            cy.waitForSkeletonGone();
+            //TODO: Add proper IDs for these selectors
+            const firstRowSelector = '.container-xl > :nth-child(3) > div > :nth-child(1) > .table > tbody';
+            const thirdRowSelector = '.container-xl > :nth-child(3) > div > :nth-child(3)';
+            cy.get(firstRowSelector).invoke('css', 'width').then(firstRowWidth => {
+                cy.get(thirdRowSelector).invoke('css', 'width').then(thirdRowWidth => {
+                    expect(parseInt(firstRowWidth)).to.be.lessThan(parseInt(thirdRowWidth));
+                });
+            });
+        });
+
+        describe('peg in/peg out', () => {
+            it('loads peg in addresses', () => {
+                cy.visit(`${basePath}/tx/fe764f7bedfc2a37b29d9c8aef67d64a57d253a6b11c5a55555cfd5826483a58`);
+                cy.waitForSkeletonGone();
+                //TODO: Change to an element id so we don't assert on a string
+                cy.get('#table-tx-vin').should('contain', 'Peg-in');
+                cy.get('#table-tx-vin a').click().then(() => {
+                    cy.waitForSkeletonGone();
+                    if (baseModule === 'liquid') {
+                        cy.url().should('eq', 'https://mempool.space/tx/f148c0d854db4174ea420655235f910543f0ec3680566dcfdf84fb0a1697b592');
+                    } else {
+                        //TODO: Use an environment variable to get the hostname
+                        cy.url().should('eq', 'http://localhost:4200/tx/f148c0d854db4174ea420655235f910543f0ec3680566dcfdf84fb0a1697b592');
+                    }
+                });
+            });
+
+            it('loads peg out addresses', () => {
+                cy.visit(`${basePath}/tx/ecf6eba04ffb3946faa172343c87162df76f1a57b07b0d6dc6ad956b13376dc8`);
+                cy.waitForSkeletonGone();
+                cy.get('#table-tx-vout a').first().click().then(() => {
+                    cy.waitForSkeletonGone();
+                    if (baseModule === 'liquid') {
+                        cy.url().should('eq', 'https://mempool.space/address/1BxoGcMg14oaH3CwHD2hF4gU9VcfgX5yoR');
+                    } else {
+                        //TODO: Use an environment variable to get the hostname
+                        cy.url().should('eq', 'http://localhost:4200/address/1BxoGcMg14oaH3CwHD2hF4gU9VcfgX5yoR');
+                    }
+                    //TODO: Add a custom class so we don't assert on a string
+                    cy.get('.badge').should('contain','Liquid Peg Out');
+                });
+            });
+        });
+
+        describe('assets', () => {
+            it('shows the assets screen', () => {
+                cy.visit(`${basePath}/assets`);
+                cy.waitForSkeletonGone();
+                cy.get('table tr').should('have.length.at.least', 5);
+            });
+
+            it('allows searching assets', () => {
+                cy.visit(`${basePath}/assets`);
+                cy.waitForSkeletonGone();
+                cy.get('.container-xl input').click().type('Liquid Bitcoin').then(() => {
+                    cy.get('table tr').should('have.length', 1);
+                });
+            });
+
+            it('shows a specific asset ID', () => {
+                cy.visit(`${basePath}/assets`);
+                cy.waitForSkeletonGone();
+                cy.get('.container-xl input').click().type('Liquid AUD').then(() => {
+                    cy.get('table tr td:nth-of-type(1) a').click();
+                });
+            });
+        });
+
+
+        describe('unblinded TX', () => {
+
+            it('should not show an unblinding error message for regular txs', () => {
+                cy.visit(`${basePath}/tx/82a479043ec3841e0d3f829afc8df4f0e2bbd675a13f013ea611b2fde0027d45`);
+                cy.waitForSkeletonGone();
+                cy.get('.error-unblinded' ).should('not.exist');
+            });
+
+            it('show unblinded TX', () => {
+                cy.visit(`${basePath}/tx/f2f41c0850e8e7e3f1af233161fd596662e67c11ef10ed15943884186fbb7f46#blinded=100000,6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d,0ab9f70650f16b1db8dfada05237f7d0d65191c3a13183da8a2ddddfbde9a2ad,fd98b2edc5530d76acd553f206a431f4c1fab27e10e290ad719582af878e98fc,2364760,6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d,90c7a43b15b905bca045ca42a01271cfe71d2efe3133f4197792c24505cb32ed,12eb5959d9293b8842e7dd8bc9aa9639fd3fd031c5de3ba911adeca94eb57a3a`);
+                cy.waitForSkeletonGone();
+                cy.get('#table-tx-vin tr').should('have.class', 'assetBox');
+                cy.get('#table-tx-vout tr').should('have.class', 'assetBox');
+            });
+
+            it('show empty unblinded TX', () => {
+                cy.visit(`${basePath}/tx/f2f41c0850e8e7e3f1af233161fd596662e67c11ef10ed15943884186fbb7f46#blinded=`);
+                cy.waitForSkeletonGone();
+                cy.get('#table-tx-vin tr').should('have.class', '');
+                cy.get('#table-tx-vout tr').should('have.class', '');
+            });
+
+            it('show invalid unblinded TX hex', () => {
+                cy.visit(`${basePath}/tx/f2f41c0850e8e7e3f1af233161fd596662e67c11ef10ed15943884186fbb7f46#blinded=123`);
+                cy.waitForSkeletonGone();
+                cy.get('#table-tx-vin tr').should('have.class', '');
+                cy.get('#table-tx-vout tr').should('have.class', '');
+                cy.get('.error-unblinded' ).contains('Error: Invalid blinding data (invalid hex)');
+            });
+
+            it('show first unblinded vout', () => {
+                cy.visit(`${basePath}/tx/f2f41c0850e8e7e3f1af233161fd596662e67c11ef10ed15943884186fbb7f46#blinded=100000,6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d,0ab9f70650f16b1db8dfada05237f7d0d65191c3a13183da8a2ddddfbde9a2ad,fd98b2edc5530d76acd553f206a431f4c1fab27e10e290ad719582af878e98fc`);
+                cy.waitForSkeletonGone();
+                cy.get('#table-tx-vout tr:first-child()').should('have.class', 'assetBox');
+            });
+
+            it('show second unblinded vout', () => {
+                cy.visit(`${basePath}/tx/f2f41c0850e8e7e3f1af233161fd596662e67c11ef10ed15943884186fbb7f46#blinded=2364760,6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d,90c7a43b15b905bca045ca42a01271cfe71d2efe3133f4197792c24505cb32ed,12eb5959d9293b8842e7dd8bc9aa9639fd3fd031c5de3ba911adeca94eb57a3a`);
+                cy.get('#table-tx-vout tr').should('have.class', 'assetBox');
+            });
+
+            it('show invalid error unblinded TX', () => {
+                cy.visit(`${basePath}/tx/f2f41c0850e8e7e3f1af233161fd596662e67c11ef10ed15943884186fbb7f46#blinded=100000,6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d,0ab9f70650f16b1db8dfada05237f7d0d65191c3a13183da8a2ddddfbde9a2ad,fd98b2edc5530d76acd553f206a431f4c1fab27e10e290ad719582af878e98fc,2364760,6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d,90c7a43b15b905bca045ca42a01271cfe71d2efe3133f4197792c24505cb32ed,12eb5959d9293b8842e7dd8bc9aa9639fd3fd031c5de3ba911adeca94eb57a3c`);
+                cy.waitForSkeletonGone();
+                cy.get('#table-tx-vout tr').should('have.class', 'assetBox');
+                cy.get('.error-unblinded' ).contains('Error: Invalid blinding data.');
+            });
+
+            it('shows asset peg in/out and burn transactions', () => {
+                cy.visit(`${basePath}/asset/6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d`);
+                cy.waitForSkeletonGone();
+                cy.get('#table-tx-vout tr').not('.assetBox');
+                cy.get('#table-tx-vin tr').not('.assetBox');
+            });
+
+            it('prevents regressing issue #644', () => {
+                cy.visit(`${basePath}/tx/393b890966f305e7c440fcfb12a13f51a7a9011cc59ff5f14f6f93214261bd82`);
+                cy.waitForSkeletonGone();
+            });
+        });
+    } else {
+        it.skip(`Tests cannot be run on the selected BASE_MODULE ${baseModule}`);
+    }
+});

frontend/cypress/integration/mainnet/mainnet.spec.ts

@@ -0,0 +1,534 @@
+import { emitMempoolInfo, dropWebSocket } from "../../support/websocket";
+
+const baseModule = Cypress.env("BASE_MODULE");
+
+
+//Credit: https://github.com/bahmutov/cypress-examples/blob/6cedb17f83a3bb03ded13cf1d6a3f0656ca2cdf5/docs/recipes/overlapping-elements.md
+
+/**
+ * Returns true if two DOM rectangles are overlapping
+ * @param {DOMRect} rect1 the bounding client rectangle of the first element
+ * @param {DOMRect} rect2 the bounding client rectangle of the second element
+ * @returns {boolean}
+*/
+const areOverlapping = (rect1, rect2) => {
+    // if one rectangle is on the left side of the other
+    if (rect1.right < rect2.left || rect2.right < rect1.left) {
+        return false
+    }
+
+    // if one rectangle is above the other
+    if (rect1.bottom < rect2.top || rect2.bottom < rect1.top) {
+        return false
+    }
+
+    // the rectangles must overlap
+    return true
+}
+
+/**
+ * Returns the bounding rectangle of the first DOM
+ * element in the given jQuery object.
+ */
+const getRectangle = ($el) => $el[0].getBoundingClientRect();
+
+describe('Mainnet', () => {
+    beforeEach(() => {
+        //cy.intercept('/sockjs-node/info*').as('socket');
+        cy.intercept('/api/block-height/*').as('block-height');
+        cy.intercept('/api/block/*').as('block');
+        cy.intercept('/api/block/*/txs/0').as('block-txs');
+        cy.intercept('/api/tx/*/outspends').as('tx-outspends');
+        cy.intercept('/resources/pools.json').as('pools');
+
+        // Search Auto Complete
+        cy.intercept('/api/address-prefix/1wiz').as('search-1wiz');
+        cy.intercept('/api/address-prefix/1wizS').as('search-1wizS');
+        cy.intercept('/api/address-prefix/1wizSA').as('search-1wizSA');
+
+        Cypress.Commands.add('waitForBlockData', () => {
+            cy.wait('@tx-outspends');
+            cy.wait('@pools');
+        });
+    });
+
+    if (baseModule === 'mempool') {
+
+        it('check first mempool block after skeleton loads', () => {
+          cy.visit('/');
+          cy.waitForSkeletonGone();
+          cy.get('#mempool-block-0 > .blockLink').should('exist');
+        });
+
+        it('loads the status screen', () => {
+            cy.visit('/status');
+            cy.get('#mempool-block-0').should('be.visible');
+            cy.get('[id^="bitcoin-block-"]').should('have.length', 8);
+            cy.get('.footer').should('be.visible');
+            cy.get('.row > :nth-child(1)').invoke('text').then((text) => {
+                expect(text).to.match(/Tx vBytes per second:.* vB\/s/);
+            });
+            cy.get('.row > :nth-child(2)').invoke('text').then((text) => {
+                expect(text).to.match(/Unconfirmed:(.*)/);
+            });
+            cy.get('.row > :nth-child(3)').invoke('text').then((text) => {
+                expect(text).to.match(/Mempool size:(.*) (kB|MB) \((\d+) (block|blocks)\)/);
+            });
+        });
+
+        it('loads dashboard, drop websocket and reconnect', () => {
+            cy.viewport('macbook-16');
+            cy.mockMempoolSocket();
+            cy.visit('/');
+            cy.get('.badge').should('not.exist');
+            dropWebSocket();
+            cy.get('.badge').should('be.visible');
+            cy.get('.badge', {timeout: 25000}).should('not.exist');
+            emitMempoolInfo({
+                'params': {
+                    command: 'init'
+                }
+            });
+            cy.get(':nth-child(1) > #bitcoin-block-0').should('not.exist');
+            cy.get(':nth-child(2) > #bitcoin-block-0').should('not.exist');
+            cy.get(':nth-child(3) > #bitcoin-block-0').should('not.exist');
+        });
+
+        it('loads the dashboard', () => {
+            cy.visit('/');
+            cy.waitForSkeletonGone();
+        });
+
+        it('check op_return tx tooltip', () => {
+            cy.visit('/block/00000000000000000003c5f542bed265319c6cf64238cf1f1bb9bca3ebf686d2');
+            cy.waitForSkeletonGone();
+            cy.get('tbody > :nth-child(2) > :nth-child(1) > a').first().trigger('onmouseover');
+            cy.get('tbody > :nth-child(2) > :nth-child(1) > a').first().trigger('mouseenter');
+            cy.get('.tooltip-inner').should('be.visible');
+        });
+
+        it('check op_return coinbase tooltip', () => {
+            cy.visit('/block/00000000000000000003c5f542bed265319c6cf64238cf1f1bb9bca3ebf686d2');
+            cy.waitForSkeletonGone();
+            cy.get('div > a > .badge').first().trigger('onmouseover');
+            cy.get('div > a > .badge').first().trigger('mouseenter');
+            cy.get('.tooltip-inner').should('be.visible');
+        });
+
+        describe('search', () => {
+            it('allows searching for partial Bitcoin addresses', () => {
+                cy.visit('/');
+                cy.get('.search-box-container > .form-control').type('1wiz').then(() => {
+                    cy.wait('@search-1wiz');
+                    cy.get('ngb-typeahead-window button.dropdown-item').should('have.length', 10);
+                });
+
+                cy.get('.search-box-container > .form-control').type('S').then(() => {
+                    cy.wait('@search-1wizS');
+                    cy.get('ngb-typeahead-window button.dropdown-item').should('have.length', 5);
+                });
+
+                cy.get('.search-box-container > .form-control').type('A').then(() => {
+                    cy.wait('@search-1wizSA');
+                    cy.get('ngb-typeahead-window button.dropdown-item').should('have.length', 1)
+                });
+
+                cy.get('ngb-typeahead-window button.dropdown-item.active').click().then(() => {
+                    cy.url().should('include', '/address/1wizSAYSbuyXbt9d8JV8ytm5acqq2TorC');
+                    cy.waitForSkeletonGone();
+                    cy.get('.text-center').should('not.have.text', 'Invalid Bitcoin address');
+                });
+            });
+
+            ['BC1PQYQSZQ', 'bc1PqYqSzQ'].forEach((searchTerm) => {
+                it(`allows searching for partial case insensitive bech32m addresses: ${searchTerm}`, () => {
+                    cy.visit('/');
+                    cy.get('.search-box-container > .form-control').type(searchTerm).then(() => {
+                        cy.get('ngb-typeahead-window button.dropdown-item').should('have.length', 1);
+                        cy.get('ngb-typeahead-window button.dropdown-item.active').click().then(() => {
+                            cy.url().should('include', '/address/bc1pqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqsyjer9e');
+                            cy.waitForSkeletonGone();
+                            cy.get('.text-center').should('not.have.text', 'Invalid Bitcoin address');
+                        });
+                    });
+                });
+            });
+
+            ['BC1Q000375VXCU', 'bC1q000375vXcU'].forEach((searchTerm) => {
+                it(`allows searching for partial case insensitive bech32 addresses: ${searchTerm}`, () => {
+                    cy.visit('/');
+                    cy.get('.search-box-container > .form-control').type(searchTerm).then(() => {
+                        cy.get('ngb-typeahead-window button.dropdown-item').should('have.length', 1);
+                        cy.get('ngb-typeahead-window button.dropdown-item.active').click().then(() => {
+                            cy.url().should('include', '/address/bc1q000375vxcuf5v04lmwy22vy2thvhqkxghgq7dy');
+                            cy.waitForSkeletonGone();
+                            cy.get('.text-center').should('not.have.text', 'Invalid Bitcoin address');
+                        });
+                    });
+                });
+            });
+
+        });
+
+        describe('blocks navigation', () => {
+
+            describe('keyboard events', () => {
+                it('loads first blockchain blocks visible and keypress arrow right', () => {
+                    cy.viewport('macbook-16');
+                    cy.visit('/');
+                    cy.waitForSkeletonGone();
+                    cy.get('.blockchain-blocks-0 > a').click().then(() => {
+                        cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('not.exist');
+                        cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                        cy.waitForPageIdle();
+                        cy.document().right();
+                        cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                        cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                    });
+                });
+
+                it('loads first blockchain blocks visible and keypress arrow left', () => {
+                    cy.viewport('macbook-16');
+                    cy.visit('/');
+                    cy.waitForSkeletonGone();
+                    cy.get('.blockchain-blocks-0 > a').click().then(() => {
+                        cy.waitForPageIdle();
+                        cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('not.exist');
+                        cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                        cy.document().left();
+                        cy.get('.title-block h1').invoke('text').should('equal', 'Next block');
+                    });
+                });
+
+                it('loads last blockchain blocks and keypress arrow right', () => {
+                    cy.viewport('macbook-16');
+                    cy.visit('/');
+                    cy.waitForSkeletonGone();
+                    cy.get('.blockchain-blocks-4 > a').click().then(() => {
+                        cy.waitForPageIdle();
+
+                        // block 6
+                        cy.document().right();
+                        cy.wait(5000);
+                        cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                        cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+
+                        // block 7
+                        cy.document().right();
+                        cy.wait(5000);
+                        cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                        cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+
+                        // block 8 - last visible block
+                        cy.document().right();
+                        cy.wait(5000);
+                        cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                        cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+
+                        // block 9 - not visible at the blochchain blocks visible block
+                        cy.document().right();
+                        cy.wait(5000);
+                        cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                        cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+
+                    });
+                });
+
+                it('loads genesis block and keypress arrow right', () => {
+                    cy.viewport('macbook-16');
+                    cy.visit('/block/0');
+                    cy.waitForSkeletonGone();
+                    cy.waitForPageIdle();
+
+                    cy.document().right();
+                    cy.wait(5000);
+                    cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                    cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('not.exist');
+                });
+
+                it('loads genesis block and keypress arrow left', () => {
+                    cy.viewport('macbook-16');
+                    cy.visit('/block/0');
+                    cy.waitForSkeletonGone();
+                    cy.waitForPageIdle();
+
+                    cy.document().left();
+                    cy.wait(5000);
+                    cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                    cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                });
+            });
+            describe('mouse events', () => {
+                it('loads first blockchain blocks visible and click on the arrow right', () => {
+                    cy.viewport('macbook-16');
+                    cy.visit('/');
+                    cy.waitForSkeletonGone();
+                    cy.get('.blockchain-blocks-0 > a').click().then(() => {
+                        cy.waitForPageIdle();
+                        cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('not.exist');
+                        cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                        cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').click().then(() => {
+                            cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                            cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                        });
+                    });
+                });
+
+                it('loads genesis block and click on the arrow left', () => {
+                    cy.viewport('macbook-16');
+                    cy.visit('/block/0');
+                    cy.waitForSkeletonGone();
+                    cy.waitForPageIdle();
+                    cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                    cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('not.exist');
+                    cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').click().then(() => {
+                        cy.get('[ngbtooltip="Next Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                        cy.get('[ngbtooltip="Previous Block"] > .ng-fa-icon > .svg-inline--fa').should('be.visible');
+                    });
+                });
+            });
+        });
+
+
+        it('loads skeleton when changes between networks', () => {
+            cy.visit('/');
+            cy.waitForSkeletonGone();
+
+            cy.changeNetwork("testnet");
+            cy.changeNetwork("signet");
+            cy.changeNetwork("mainnet");
+        });
+
+        it.skip('loads the dashboard with the skeleton blocks', () => {
+            cy.mockMempoolSocket();
+            cy.visit("/");
+            cy.get(':nth-child(1) > #bitcoin-block-0').should('be.visible');
+            cy.get(':nth-child(2) > #bitcoin-block-0').should('be.visible');
+            cy.get(':nth-child(3) > #bitcoin-block-0').should('be.visible');
+            cy.get('#mempool-block-0').should('be.visible');
+            cy.get('#mempool-block-1').should('be.visible');
+            cy.get('#mempool-block-2').should('be.visible');
+
+            emitMempoolInfo({
+                'params': {
+                    command: 'init'
+                }
+            });
+
+            cy.get(':nth-child(1) > #bitcoin-block-0').should('not.exist');
+            cy.get(':nth-child(2) > #bitcoin-block-0').should('not.exist');
+            cy.get(':nth-child(3) > #bitcoin-block-0').should('not.exist');
+        });
+
+        it('loads the blocks screen', () => {
+            cy.visit('/');
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(2) > a').click().then(() => {
+                cy.waitForPageIdle();
+            });
+        });
+
+        it('loads the graphs screen', () => {
+            cy.visit('/');
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(3) > a').click().then(() => {
+                cy.wait(1000);
+            });
+        });
+
+        describe('graphs page', () => {
+          it('check buttons - mobile', () => {
+              cy.viewport('iphone-6');
+              cy.visit('/graphs');
+              cy.waitForSkeletonGone();
+              cy.get('.small-buttons > :nth-child(2)').should('be.visible');
+              cy.get('#dropdownFees').should('be.visible');
+              cy.get('.btn-group').should('be.visible');
+          });
+          it('check buttons - tablet', () => {
+            cy.viewport('ipad-2');
+            cy.visit('/graphs');
+            cy.waitForSkeletonGone();
+            cy.get('.small-buttons > :nth-child(2)').should('be.visible');
+            cy.get('#dropdownFees').should('be.visible');
+            cy.get('.btn-group').should('be.visible');
+          });
+          it('check buttons - desktop', () => {
+            cy.viewport('macbook-16');
+            cy.visit('/graphs');
+            cy.waitForSkeletonGone();
+            cy.get('.small-buttons > :nth-child(2)').should('be.visible');
+            cy.get('#dropdownFees').should('be.visible');
+            cy.get('.btn-group').should('be.visible');
+          });
+        });
+
+        it('loads the tv screen - desktop', () => {
+            cy.viewport('macbook-16');
+            cy.visit('/');
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(4) > a').click().then(() => {
+                cy.viewport('macbook-16');
+                cy.get('.chart-holder');
+                cy.get('.blockchain-wrapper').should('be.visible');
+                cy.get('#mempool-block-0').should('be.visible');
+            });
+        });
+
+        it('loads the tv screen - mobile', () => {
+            cy.viewport('iphone-6');
+            cy.visit('/tv');
+            cy.waitForSkeletonGone();
+            cy.get('.chart-holder');
+            cy.get('.blockchain-wrapper').should('not.visible');
+        });
+
+        it('loads the api screen', () => {
+            cy.visit('/');
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(5) > a').click().then(() => {
+                cy.wait(1000);
+            });
+        });
+
+        describe('blocks', () => {
+            it('shows empty blocks properly', () => {
+                cy.visit('/block/0000000000000000000bd14f744ef2e006e61c32214670de7eb891a5732ee775');
+                cy.waitForSkeletonGone();
+                cy.waitForPageIdle();
+                cy.get('h2').invoke('text').should('equal', '1 transaction');
+            });
+
+            it('expands and collapses the block details', () => {
+                cy.visit('/block/0');
+                cy.waitForSkeletonGone();
+                cy.waitForPageIdle();
+                cy.get('.btn.btn-outline-info').click().then(() => {
+                    cy.get('#details').should('be.visible');
+                });
+
+                cy.get('.btn.btn-outline-info').click().then(() => {
+                    cy.get('#details').should('not.be.visible');
+                });
+            });
+            it('shows blocks with no pagination', () => {
+                cy.visit('/block/00000000000000000001ba40caf1ad4cec0ceb77692662315c151953bfd7c4c4');
+                cy.waitForSkeletonGone();
+                cy.waitForPageIdle();
+                cy.get('.block-tx-title h2').invoke('text').should('equal', '19 transactions');
+                cy.get('.pagination-container ul.pagination').first().children().should('have.length', 5);
+            });
+
+            it('supports pagination on the block screen', () => {
+                // 41 txs
+                cy.visit('/block/00000000000000000009f9b7b0f63ad50053ad12ec3b7f5ca951332f134f83d8');
+                cy.waitForSkeletonGone();
+                cy.get('.pagination-container a').invoke('text').then((text1) => {
+                    cy.get('.active + li').first().click().then(() => {
+                        cy.waitForSkeletonGone();
+                        cy.waitForPageIdle();
+                        cy.get('.header-bg.box > a').invoke('text').then((text2) => {
+                            expect(text1).not.to.eq(text2);
+                        });
+                    });
+                });
+            });
+
+            it('shows blocks pagination with 5 pages (desktop)', () => {
+                cy.viewport(760, 800);
+                cy.visit('/block/000000000000000000049281946d26fcba7d99fdabc1feac524bc3a7003d69b3').then(() => {
+                    cy.waitForSkeletonGone();
+                    cy.waitForPageIdle();
+                });
+
+                // 5 pages + 4 buttons = 9 buttons
+                cy.get('.pagination-container ul.pagination').first().children().should('have.length', 9);
+            });
+
+            it('shows blocks pagination with 3 pages (mobile)', () => {
+                cy.viewport(669, 800);
+                cy.visit('/block/000000000000000000049281946d26fcba7d99fdabc1feac524bc3a7003d69b3').then(() => {
+                    cy.waitForSkeletonGone();
+                    cy.waitForPageIdle();
+                });
+
+                // 3 pages + 4 buttons = 7 buttons
+                cy.get('.pagination-container ul.pagination').first().children().should('have.length', 7);
+            });
+        });
+
+        describe('RBF transactions', () => {
+            it('shows RBF transactions properly (mobile)', () => {
+                cy.viewport('iphone-xr');
+                cy.mockMempoolSocket();
+                cy.visit('/tx/f81a08699b62b2070ad8fe0f2a076f8bea0386a2fdcd8124caee42cbc564a0d5');
+
+                cy.waitForSkeletonGone();
+
+                emitMempoolInfo({
+                    'params': {
+                        command: 'init'
+                    }
+                });
+
+                cy.get('#mempool-block-0');
+
+                emitMempoolInfo({
+                    'params': {
+                        command: 'rbfTransaction'
+                    }
+                });
+
+                cy.get('.alert-mempool').should('be.visible');
+                cy.get('.alert-mempool').invoke('css', 'width').then((alertWidth) => {
+                    cy.get('.container-xl > :nth-child(3)').invoke('css', 'width').should('equal', alertWidth);
+                });
+
+                cy.get('.btn-success').then(getRectangle).then((rectA) => {
+                    cy.get('.alert-mempool').then(getRectangle).then((rectB) => {
+                        expect(areOverlapping(rectA, rectB), 'Confirmations box and RBF alert are overlapping').to.be.false;
+                    });
+                });
+            });
+
+            it('shows RBF transactions properly (desktop)', () => {
+                cy.viewport('macbook-16');
+                cy.mockMempoolSocket();
+                cy.visit('/tx/f81a08699b62b2070ad8fe0f2a076f8bea0386a2fdcd8124caee42cbc564a0d5');
+
+                cy.waitForSkeletonGone();
+
+                emitMempoolInfo({
+                    'params': {
+                        command: 'init'
+                    }
+                });
+
+                cy.get('#mempool-block-0');
+
+                emitMempoolInfo({
+                    'params': {
+                        command: 'rbfTransaction'
+                    }
+                });
+
+                cy.get('.alert-mempool').should('be.visible');
+
+                const alertLocator = '.alert-mempool';
+                const tableLocator = '.container-xl > :nth-child(3)';
+
+                cy.get(tableLocator).invoke('css', 'width').then((firstWidth) => {
+                    cy.get(alertLocator).invoke('css', 'width').should('equal', firstWidth);
+                });
+
+                cy.get('.btn-success').then(getRectangle).then((rectA) => {
+                    cy.get('.alert-mempool').then(getRectangle).then((rectB) => {
+                        expect(areOverlapping(rectA, rectB), 'Confirmations box and RBF alert are overlapping').to.be.false;
+                    });
+                });
+            });
+        });
+    } else {
+        it.skip(`Tests cannot be run on the selected BASE_MODULE ${baseModule}`);
+    }
+});

frontend/cypress/integration/signet/signet.spec.ts

@@ -0,0 +1,139 @@
+import { emitMempoolInfo } from "../../support/websocket";
+
+const baseModule = Cypress.env("BASE_MODULE");
+
+describe('Signet', () => {
+  beforeEach(() => {
+    cy.intercept('/api/block-height/*').as('block-height');
+    cy.intercept('/api/block/*').as('block');
+    cy.intercept('/api/block/*/txs/0').as('block-txs');
+    cy.intercept('/api/tx/*/outspends').as('tx-outspends');
+  });
+
+
+  if (baseModule === 'mempool') {
+    it('loads the dashboard', () => {
+        cy.visit('/signet');
+        cy.waitForSkeletonGone();
+    });
+
+    it('check first mempool block after skeleton loads', () => {
+      cy.visit('/');
+      cy.waitForSkeletonGone();
+      cy.get('#mempool-block-0 > .blockLink').should('exist');
+    });
+
+    it.skip('loads the dashboard with the skeleton blocks', () => {
+        cy.mockMempoolSocket();
+        cy.visit("/signet");
+        cy.get(':nth-child(1) > #bitcoin-block-0').should('be.visible');
+        cy.get(':nth-child(2) > #bitcoin-block-0').should('be.visible');
+        cy.get(':nth-child(3) > #bitcoin-block-0').should('be.visible');
+        cy.get('#mempool-block-0').should('be.visible');
+        cy.get('#mempool-block-1').should('be.visible');
+        cy.get('#mempool-block-2').should('be.visible');
+
+        emitMempoolInfo({
+            'params': {
+            "network": "signet"
+            }
+        });
+
+        cy.get(':nth-child(1) > #bitcoin-block-0').should('not.exist');
+        cy.get(':nth-child(2) > #bitcoin-block-0').should('not.exist');
+        cy.get(':nth-child(3) > #bitcoin-block-0').should('not.exist');
+    });
+
+    it('loads the blocks screen', () => {
+        cy.visit('/signet');
+        cy.waitForSkeletonGone();
+        cy.get('li:nth-of-type(2) > a').click().then(() => {
+            cy.wait(1000);
+        });
+    });
+
+    it('loads the graphs screen', () => {
+        cy.visit('/signet');
+        cy.waitForSkeletonGone();
+        cy.get('li:nth-of-type(3) > a').click().then(() => {
+            cy.wait(1000);
+        });
+    });
+
+    describe('tv mode', () => {
+        it('loads the tv screen - desktop', () => {
+            cy.viewport('macbook-16');
+            cy.visit('/signet');
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(4) > a').click().then(() => {
+                cy.get('.chart-holder').should('be.visible');
+                cy.get('#mempool-block-0').should('be.visible');
+                cy.get('.tv-only').should('not.exist');
+            });
+        });
+
+        it('loads the tv screen - mobile', () => {
+            cy.visit('/signet');
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(4) > a').click().then(() => {
+                cy.viewport('iphone-8');
+                cy.get('.chart-holder').should('be.visible');
+                //TODO: Remove comment when the bug is fixed
+                //cy.get('#mempool-block-0').should('be.visible');
+                cy.get('.tv-only').should('not.exist');
+            });
+        });
+    });
+
+
+    it('loads the api screen', () => {
+        cy.visit('/signet');
+        cy.waitForSkeletonGone();
+        cy.get('li:nth-of-type(5) > a').click().then(() => {
+            cy.wait(1000);
+        });
+    });
+
+    describe('blocks', () => {
+        it('shows empty blocks properly', () => {
+            cy.visit('/signet/block/00000133d54e4589f6436703b067ec23209e0a21b8a9b12f57d0592fd85f7a42');
+            cy.waitForSkeletonGone();
+            cy.get('h2').invoke('text').should('equal', '1 transaction');
+        });
+
+        it('expands and collapses the block details', () => {
+            cy.visit('/signet/block/0');
+            cy.waitForSkeletonGone();
+            cy.get('.btn.btn-outline-info').click().then(() => {
+                cy.get('#details').should('be.visible');
+            });
+
+            cy.get('.btn.btn-outline-info').click().then(() => {
+                cy.get('#details').should('not.be.visible');
+            });
+        });
+
+        it('shows blocks with no pagination', () => {
+            cy.visit('/signet/block/00000078f920a96a69089877b934ce7fd009ab55e3170920a021262cb258e7cc');
+            cy.waitForSkeletonGone();
+            cy.get('h2').invoke('text').should('equal', '13 transactions');
+            cy.get('ul.pagination').first().children().should('have.length', 5);
+        });
+
+        it('supports pagination on the block screen', () => {
+            // 43 txs
+            cy.visit('/signet/block/00000094bd52f73bdbfc4bece3a94c21fec2dc968cd54210496e69e4059d66a6');
+            cy.waitForSkeletonGone();
+            cy.get('.header-bg.box > a').invoke('text').then((text1) => {
+                cy.get('.active + li').first().click().then(() => {
+                    cy.get('.header-bg.box > a').invoke('text').then((text2) => {
+                        expect(text1).not.to.eq(text2);
+                    });
+                });
+            });
+        });
+    });
+    } else {
+        it.skip(`Tests cannot be run on the selected BASE_MODULE ${baseModule}`);
+    }
+  });

frontend/cypress/integration/testnet/testnet.spec.ts

@@ -0,0 +1,136 @@
+import { confirmAddress, emitMempoolInfo, sendWsMock, showNewTx, startTrackingAddress } from "../../support/websocket";
+
+const baseModule = Cypress.env("BASE_MODULE");
+
+describe('Testnet', () => {
+  beforeEach(() => {
+    cy.intercept('/api/block-height/*').as('block-height');
+    cy.intercept('/api/block/*').as('block');
+    cy.intercept('/api/block/*/txs/0').as('block-txs');
+    cy.intercept('/api/tx/*/outspends').as('tx-outspends');
+  });
+
+  if (baseModule === 'mempool') {
+
+    it('loads the dashboard', () => {
+        cy.visit('/testnet');
+        cy.waitForSkeletonGone();
+    });
+
+    it('check first mempool block after skeleton loads', () => {
+      cy.visit('/');
+      cy.waitForSkeletonGone();
+      cy.get('#mempool-block-0 > .blockLink').should('exist');
+    });
+
+    it.skip('loads the dashboard with the skeleton blocks', () => {
+        cy.mockMempoolSocket();
+        cy.visit("/testnet");
+        cy.get(':nth-child(1) > #bitcoin-block-0').should('be.visible');
+        cy.get(':nth-child(2) > #bitcoin-block-0').should('be.visible');
+        cy.get(':nth-child(3) > #bitcoin-block-0').should('be.visible');
+        cy.get('#mempool-block-0').should('be.visible');
+        cy.get('#mempool-block-1').should('be.visible');
+        cy.get('#mempool-block-2').should('be.visible');
+
+        emitMempoolInfo({
+            'params': {
+            loaded: true
+            }
+        });
+
+        cy.get(':nth-child(1) > #bitcoin-block-0').should('not.exist');
+        cy.get(':nth-child(2) > #bitcoin-block-0').should('not.exist');
+        cy.get(':nth-child(3) > #bitcoin-block-0').should('not.exist');
+    });
+
+    it('loads the blocks screen', () => {
+        cy.visit('/testnet');
+        cy.waitForSkeletonGone();
+        cy.get('li:nth-of-type(2) > a').click().then(() => {
+            cy.wait(1000);
+        });
+    });
+
+    it('loads the graphs screen', () => {
+        cy.visit('/testnet');
+        cy.waitForSkeletonGone();
+        cy.get('li:nth-of-type(3) > a').click().then(() => {
+            cy.wait(1000);
+        });
+    });
+
+    describe('tv mode', () => {
+        it('loads the tv screen - desktop', () => {
+            cy.viewport('macbook-16');
+            cy.visit('/testnet');
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(4) > a').click().then(() => {
+                cy.wait(1000);
+                cy.get('.tv-only').should('not.exist');
+            });
+        });
+
+        it('loads the tv screen - mobile', () => {
+            cy.visit('/testnet');
+            cy.waitForSkeletonGone();
+            cy.get('li:nth-of-type(4) > a').click().then(() => {
+                cy.viewport('iphone-6');
+                cy.wait(1000);
+                cy.get('.tv-only').should('not.exist');
+            });
+        });
+    });
+
+
+    it('loads the api screen', () => {
+        cy.visit('/testnet');
+        cy.waitForSkeletonGone();
+        cy.get('li:nth-of-type(5) > a').click().then(() => {
+            cy.wait(1000);
+        });
+    });
+
+    describe('blocks', () => {
+        it('shows empty blocks properly', () => {
+            cy.visit('/testnet/block/0');
+            cy.waitForSkeletonGone();
+            cy.get('h2').invoke('text').should('equal', '1 transaction');
+        });
+
+        it('expands and collapses the block details', () => {
+            cy.visit('/testnet/block/0');
+            cy.waitForSkeletonGone();
+            cy.get('.btn.btn-outline-info').click().then(() => {
+                cy.get('#details').should('be.visible');
+            });
+
+            cy.get('.btn.btn-outline-info').click().then(() => {
+                cy.get('#details').should('not.be.visible');
+            });
+        });
+
+        it('shows blocks with no pagination', () => {
+            cy.visit('/testnet/block/000000000000002f8ce27716e74ecc7ad9f7b5101fed12d09e28bb721b9460ea');
+            cy.waitForSkeletonGone();
+            cy.get('h2').invoke('text').should('equal', '11 transactions');
+            cy.get('ul.pagination').first().children().should('have.length', 5);
+        });
+
+        it('supports pagination on the block screen', () => {
+            // 48 txs
+            cy.visit('/testnet/block/000000000000002ca3878ebd98b313a1c2d531f2e70a6575d232ca7564dea7a9');
+            cy.waitForSkeletonGone();
+            cy.get('.header-bg.box > a').invoke('text').then((text1) => {
+                cy.get('.active + li').first().click().then(() => {
+                    cy.get('.header-bg.box > a').invoke('text').then((text2) => {
+                        expect(text1).not.to.eq(text2);
+                    });
+                });
+            });
+        });
+    });
+    } else {
+        it.skip(`Tests cannot be run on the selected BASE_MODULE ${baseModule}`);
+    }
+  });

frontend/cypress/plugins/index.js

@@ -0,0 +1,13 @@
+const fs = require('fs');
+
+const CONFIG_FILE = 'mempool-frontend-config.json';
+
+module.exports = (on, config) => {
+  if (fs.existsSync(CONFIG_FILE)) {
+    let contents = JSON.parse(fs.readFileSync(CONFIG_FILE, 'utf8'));
+    config.env.BASE_MODULE = contents.BASE_MODULE ? contents.BASE_MODULE : 'mempool';
+  } else {
+    config.env.BASE_MODULE = 'mempool';
+  }
+  return config;
+}

frontend/cypress/support/PageIdleDetector.ts

@@ -0,0 +1,63 @@
+// source: chrisp_68 @ https://stackoverflow.com/questions/50525143/how-do-you-reliably-wait-for-page-idle-in-cypress-io-test
+export class PageIdleDetector
+{   
+    defaultOptions: Object = { timeout: 60000 };
+
+    public WaitForPageToBeIdle(): void
+    {
+        this.WaitForPageToLoad();
+        this.WaitForAngularRequestsToComplete();
+        this.WaitForAngularDigestCycleToComplete();
+        this.WaitForAnimationsToStop();
+    }
+
+    public WaitForPageToLoad(options: Object = this.defaultOptions): void
+    {
+        cy.document(options).should((myDocument: any) =>
+        {
+            expect(myDocument.readyState, "WaitForPageToLoad").to.be.oneOf(["interactive", "complete"]);
+        });
+    }
+
+    public WaitForAngularRequestsToComplete(options: Object = this.defaultOptions): void
+    {
+        cy.window(options).should((myWindow: any) =>
+        {
+            if (!!myWindow.angular)
+            {
+                expect(this.NumberOfPendingAngularRequests(myWindow), "WaitForAngularRequestsToComplete").to.have.length(0);
+            }
+        });
+    }
+
+    public WaitForAngularDigestCycleToComplete(options: Object = this.defaultOptions): void
+    {
+        cy.window(options).should((myWindow: any) =>
+        {
+            if (!!myWindow.angular)
+            {
+                expect(this.AngularRootScopePhase(myWindow), "WaitForAngularDigestCycleToComplete").to.be.null;
+            }
+        });
+    }
+
+    public WaitForAnimationsToStop(options: Object = this.defaultOptions): void
+    {
+        cy.get(":animated", options).should("not.exist");
+    }
+
+    private getInjector(myWindow: any)
+    {
+        return myWindow.angular.element(myWindow.document.body).injector();
+    }
+
+    private NumberOfPendingAngularRequests(myWindow: any)
+    {
+        return this.getInjector(myWindow).get('$http').pendingRequests;
+    }
+
+    private AngularRootScopePhase(myWindow: any)
+    {
+        return this.getInjector(myWindow).get("$rootScope").$$phase;
+    }
+}

frontend/cypress/support/commands.ts

@@ -0,0 +1,147 @@
+// ***********************************************
+// This example namespace declaration will help
+// with Intellisense and code completion in your
+// IDE or Text Editor.
+// ***********************************************
+// declare namespace Cypress {
+//   interface Chainable<Subject = any> {
+//     customCommand(param: any): typeof customCommand;
+//   }
+// }
+//
+// function customCommand(param: any): void {
+//   console.warn(param);
+// }
+//
+// NOTE: You can use it like so:
+// Cypress.Commands.add('customCommand', customCommand);
+//
+// ***********************************************
+// This example commands.js shows you how to
+// create various custom commands and overwrite
+// existing commands.
+//
+// For more comprehensive examples of custom
+// commands please read more here:
+// https://on.cypress.io/custom-commands
+// ***********************************************
+//
+//
+// -- This is a parent command --
+// Cypress.Commands.add("login", (email, password) => { ... })
+//
+//
+// -- This is a child command --
+// Cypress.Commands.add("drag", { prevSubject: 'element'}, (subject, options) => { ... })
+//
+//
+// -- This is a dual command --
+// Cypress.Commands.add("dismiss", { prevSubject: 'optional'}, (subject, options) => { ... })
+//
+//
+// -- This will overwrite an existing command --
+// Cypress.Commands.overwrite("visit", (originalFn, url, options) => { ... })
+
+'use strict'
+
+import 'cypress-wait-until';
+import { PageIdleDetector } from './PageIdleDetector';
+import { mockWebSocket } from './websocket';
+
+/* global Cypress */
+const codes = {
+    ArrowLeft: 37,
+    ArrowUp: 38,
+    ArrowRight: 39,
+    ArrowDown: 40
+}
+
+Cypress.Commands.add('waitForSkeletonGone', () => {
+    cy.waitUntil(() => {
+        return Cypress.$('.skeleton-loader').length === 0;
+    }, { verbose: true, description: "waitForSkeletonGone", errorMsg: "skeleton loaders never went away", timeout: 15000, interval: 50});
+});
+
+Cypress.Commands.add(
+    "waitForPageIdle",
+    () => {
+        console.warn("Waiting for page idle state");
+        const pageIdleDetector = new PageIdleDetector();
+        pageIdleDetector.WaitForPageToBeIdle();
+    }
+);
+
+Cypress.Commands.add('mockMempoolSocket', () => {
+  mockWebSocket();
+});
+
+Cypress.Commands.add('changeNetwork', (network: "testnet"|"signet"|"liquid"|"bisq"|"mainnet" ) => {
+    cy.get('.dropdown-toggle').click().then(() => {
+        cy.get(`.${network}`).click().then(() => {
+            cy.waitForPageIdle();
+            if(network !== 'bisq'){
+                cy.waitForSkeletonGone();
+            }
+        });
+    });
+});
+
+// https://github.com/bahmutov/cypress-arrows/blob/8f0303842a343550fbeaf01528d01d1ff213b70c/src/index.js
+function keydownCommand ($el, key) {
+    const message = `sending the "${key}" keydown event`
+    const log = Cypress.log({
+      name: `keydown: ${key}`,
+      message: message,
+      consoleProps: function () {
+        return {
+          Subject: $el
+        }
+      }
+    })
+  
+    const e = $el.createEvent('KeyboardEvent')
+  
+    Object.defineProperty(e, 'key', {
+      get: function () {
+        return key
+      }
+    })
+  
+    Object.defineProperty(e, 'keyCode', {
+      get: function () {
+        return this.keyCodeVal
+      }
+    })
+    Object.defineProperty(e, 'which', {
+      get: function () {
+        return this.keyCodeVal
+      }
+    })
+    var metaKey = false
+  
+    Object.defineProperty(e, 'metaKey', {
+      get: function () {
+        return metaKey
+      }
+    })
+  
+    Object.defineProperty(e, 'shiftKey', {
+      get: function () {
+        return false
+      }
+    })
+    e.keyCodeVal = codes[key]
+  
+    e.initKeyboardEvent('keydown', true, true,
+      $el.defaultView, false, false, false, false, e.keyCodeVal, e.keyCodeVal)
+  
+    $el.dispatchEvent(e)
+    log.snapshot().end()
+    return $el
+  }
+  
+  Cypress.Commands.add('keydown', { prevSubject: "dom" }, keydownCommand)
+  Cypress.Commands.add('left', { prevSubject: "dom" }, $el => keydownCommand($el, 'ArrowLeft'))
+  Cypress.Commands.add('right', { prevSubject: "dom" }, $el => keydownCommand($el, 'ArrowRight'))
+  Cypress.Commands.add('up', { prevSubject: "dom" }, $el => keydownCommand($el, 'ArrowUp'))
+  Cypress.Commands.add('down', { prevSubject: "dom" }, $el => keydownCommand($el, 'ArrowDown'))

frontend/cypress/support/index.d.ts

@@ -0,0 +1,10 @@
+
+/// <reference types="cypress" />
+declare namespace Cypress {
+    interface Chainable<Subject> {
+        waitForSkeletonGone(): Chainable<any>
+        waitForPageIdle(): Chainable<any>
+        mockMempoolSocket(): Chainable<any>
+        changeNetwork(network: "testnet"|"signet"|"liquid"|"bisq"|"mainnet"): Chainable<any>
+    }
+}

frontend/cypress/support/index.ts

@@ -0,0 +1,20 @@
+// ***********************************************************
+// This example support/index.js is processed and
+// loaded automatically before your test files.
+//
+// This is a great place to put global configuration and
+// behavior that modifies Cypress.
+//
+// You can change the location of this file or turn off
+// automatically serving support files with the
+// 'supportFile' configuration option.
+//
+// You can read more here:
+// https://on.cypress.io/configuration
+// ***********************************************************
+
+// When a command from ./commands is ready to use, import with `import './commands'` syntax
+import './commands';
+import failOnConsoleError from 'cypress-fail-on-console-error';
+
+failOnConsoleError();

frontend/cypress/support/websocket.ts

@@ -0,0 +1,108 @@
+import { v4 as uuid } from 'uuid';
+import { WebSocket, Server } from 'mock-socket';
+
+declare global {
+	interface Window {
+		mockServer: Server;
+		mockSocket: WebSocket;
+	}
+}
+
+const mocks: { [key: string]: { server: Server; websocket: WebSocket } } = {};
+
+const cleanupMock = (url: string) => {
+	if (mocks[url]) {
+		mocks[url].websocket.close();
+		mocks[url].server.stop();
+		delete mocks[url];
+	}
+};
+
+const createMock = (url: string) => {
+	cleanupMock(url);
+	const server = new Server(url);
+	const websocket = new WebSocket(url);
+	mocks[url] = { server, websocket };
+
+	return mocks[url];
+};
+
+export const mockWebSocket = () => {
+	cy.on('window:before:load', (win) => {
+		const winWebSocket = win.WebSocket;
+		cy.stub(win, 'WebSocket').callsFake((url) => {
+			console.log(url);
+			if ((new URL(url).pathname.indexOf('/sockjs-node/') !== 0)) {
+				const { server, websocket } = createMock(url);
+
+				win.mockServer = server;
+				win.mockServer.on('connection', (socket) => {
+					win.mockSocket = socket;
+					win.mockSocket.send('{"action":"init"}');
+				});
+
+				win.mockServer.on('message', (message) => {
+					console.log(message);
+				});
+
+				return websocket;
+			} else {
+				return new winWebSocket(url);
+			}
+		});
+	});
+
+	cy.on('window:before:unload', () => {
+		for (const url in mocks) {
+			cleanupMock(url);
+		}
+	});
+};
+
+export const emitMempoolInfo = ({
+	params
+}: { params?: any } = {}) => {
+	cy.window().then((win) => {
+		//TODO: Refactor to take into account different parameterized mocking scenarios
+		switch (params.network) {
+			//TODO: Use network specific mocks
+			case "signet":
+			case "testnet":
+			case "mainnet":
+			default:
+				break;
+		}
+
+		switch (params.command) {
+			case "init": {
+				win.mockSocket.send('{"action":"init"}');
+				win.mockSocket.send('{"action":"want","data":["blocks","stats","mempool-blocks","live-2h-chart"]}');
+				win.mockSocket.send('{"conversions":{"USD":32365.338815782445}}');
+				cy.readFile('cypress/fixtures/mainnet_live2hchart.json', 'ascii').then((fixture) => {
+					win.mockSocket.send(JSON.stringify(fixture));
+				});
+				cy.readFile('cypress/fixtures/mainnet_mempoolInfo.json', 'ascii').then((fixture) => {
+					win.mockSocket.send(JSON.stringify(fixture));
+				});
+				break;
+			}
+			case "rbfTransaction": {
+				cy.readFile('cypress/fixtures/mainnet_rbf.json', 'ascii').then((fixture) => {
+					win.mockSocket.send(JSON.stringify(fixture));
+				});
+				break;
+			}
+			default:
+				break;
+		}
+	});
+    cy.waitForSkeletonGone();
+    return cy.get('#mempool-block-0');
+};
+
+export const dropWebSocket = (() => {
+    cy.window().then((win) => {
+        win.mockServer.simulate("error");
+    });
+    return cy.wait(500);
+});

frontend/cypress/tsconfig.json

@@ -0,0 +1,10 @@
+{
+  "extends": "../tsconfig.json",
+  "include": ["**/*.ts"],
+  "compilerOptions": {
+    "types": ["cypress"],
+    "lib": ["es2015", "dom"],
+    "allowJs": true,
+    "noEmit": true,
+  }
+}

frontend/e2e/protractor.conf.js

@@ -1,32 +0,0 @@
-// @ts-check
-// Protractor configuration file, see link for more information
-// https://github.com/angular/protractor/blob/master/lib/config.ts
-
-const { SpecReporter } = require('jasmine-spec-reporter');
-
-/**
- * @type { import("protractor").Config }
- */
-exports.config = {
-  allScriptsTimeout: 11000,
-  specs: [
-    './src/**/*.e2e-spec.ts'
-  ],
-  capabilities: {
-    'browserName': 'chrome'
-  },
-  directConnect: true,
-  baseUrl: 'http://localhost:4200/',
-  framework: 'jasmine',
-  jasmineNodeOpts: {
-    showColors: true,
-    defaultTimeoutInterval: 30000,
-    print: function() {}
-  },
-  onPrepare() {
-    require('ts-node').register({
-      project: require('path').join(__dirname, './tsconfig.json')
-    });
-    jasmine.getEnv().addReporter(new SpecReporter({ spec: { displayStacktrace: true } }));
-  }
-};

frontend/e2e/src/app.e2e-spec.ts

@@ -1,23 +0,0 @@
-import { AppPage } from './app.po';
-import { browser, logging } from 'protractor';
-
-describe('workspace-project App', () => {
-  let page: AppPage;
-
-  beforeEach(() => {
-    page = new AppPage();
-  });
-
-  it('should display welcome message', () => {
-    page.navigateTo();
-    expect(page.getTitleText()).toEqual('Welcome to mempool!');
-  });
-
-  afterEach(async () => {
-    // Assert that there are no errors emitted from the browser
-    const logs = await browser.manage().logs().get(logging.Type.BROWSER);
-    expect(logs).not.toContain(jasmine.objectContaining({
-      level: logging.Level.SEVERE,
-    } as logging.Entry));
-  });
-});

frontend/e2e/src/app.po.ts

@@ -1,11 +0,0 @@
-import { browser, by, element } from 'protractor';
-
-export class AppPage {
-  navigateTo() {
-    return browser.get(browser.baseUrl) as Promise<any>;
-  }
-
-  getTitleText() {
-    return element(by.css('app-root h1')).getText() as Promise<string>;
-  }
-}

frontend/e2e/tsconfig.json

@@ -1,13 +0,0 @@
-{
-  "extends": "../tsconfig.base.json",
-  "compilerOptions": {
-    "outDir": "../out-tsc/e2e",
-    "module": "commonjs",
-    "target": "es2018",
-    "types": [
-      "jasmine",
-      "jasminewd2",
-      "node"
-    ]
-  }
-}

frontend/generate-config.js

@@ -1,4 +1,5 @@
 var fs = require('fs');
+const { spawnSync } = require('child_process');
 
 const CONFIG_FILE_NAME = 'mempool-frontend-config.json';
 const GENERATED_CONFIG_FILE_NAME = 'generated-config.js';
@@ -11,15 +12,29 @@ let packetJsonVersion = '';
 try {
   const rawConfig = fs.readFileSync(CONFIG_FILE_NAME);
   configContent = JSON.parse(rawConfig);
+  console.log(`${CONFIG_FILE_NAME} file found, using provided config`);
 } catch (e) {
   if (e.code !== 'ENOENT') {
     throw new Error(e);
+  } else {
+    console.log(`${CONFIG_FILE_NAME} file not found, using default config`);
   }
 }
 
+const indexFilePath = configContent.BASE_MODULE ? 'src/index.' + configContent.BASE_MODULE + '.html' : 'src/index.mempool.html';
+
+try {
+  fs.copyFileSync(indexFilePath, 'src/index.html');
+  console.log('Copied ' + indexFilePath + ' to src/index.html');
+} catch (e) {
+  console.log('Error copying the index file');
+  throw new Error(e);
+}
+
 try {
   const packageJson = fs.readFileSync('package.json');
   packetJsonVersion = JSON.parse(packageJson).version;
+  console.log(`mempool version ${packetJsonVersion}`);
 } catch (e) {
   throw new Error(e);
 }
@@ -31,23 +46,64 @@ for (setting in configContent) {
   });
 }
 
-try {
-  gitCommitHash = fs.readFileSync('../.git/refs/heads/master').toString().trim();
-} catch (e) {
-  console.log('Could not load git commit info: ' + e.message || e);
+if (process.env.DOCKER_COMMIT_HASH) {
+  gitCommitHash = process.env.DOCKER_COMMIT_HASH;
+} else {
+  try {
+    const gitRevParse = spawnSync('git', ['rev-parse', '--short', 'HEAD']);
+  
+    if (!gitRevParse.error) {
+      gitCommitHash = gitRevParse.stdout.toString('utf-8').replace(/[\n\r\s]+$/, '');
+      console.log(`mempool revision ${gitCommitHash}`);
+    } else if (gitRevParse.error.code === 'ENOENT') {
+      console.log('git not found, cannot parse git hash');
+      gitCommitHash = '?';
+    }
+  } catch (e) {
+    console.log('Could not load git commit info: ' + e.message);
+    gitCommitHash = '?';
+  }
 }
 
-const code = `(function (window) {
+const newConfig = `(function (window) {
   window.__env = window.__env || {};${settings.reduce((str, obj) => `${str}
     window.__env.${obj.key} = ${ typeof obj.value === 'string' ? `'${obj.value}'` : obj.value };`, '')}
     window.__env.GIT_COMMIT_HASH = '${gitCommitHash}';
     window.__env.PACKAGE_JSON_VERSION = '${packetJsonVersion}';
   }(global || this));`;
 
-try {
-  fs.writeFileSync(GENERATED_CONFIG_FILE_NAME, code, 'utf8');
-} catch (e) {
-  throw new Error(e);
+function readConfig(path) {
+  try {
+    const currentConfig = fs.readFileSync(path).toString().trim();
+    return currentConfig;
+  } catch (e) {
+    return false;
+  }
 }
 
-console.log('Config file generated');
+function writeConfig(path, config) {
+  try {
+    fs.writeFileSync(path, config, 'utf8');
+  } catch (e) {
+    throw new Error(e);
+  }
+}
+
+const currentConfig = readConfig(GENERATED_CONFIG_FILE_NAME);
+
+if (currentConfig && currentConfig === newConfig) {
+  console.log(`No configuration updates, skipping ${GENERATED_CONFIG_FILE_NAME} file update`);
+  return;
+} else if (!currentConfig) {
+  console.log(`${GENERATED_CONFIG_FILE_NAME} file not found, creating new config file`);
+  console.log('CONFIG: ', newConfig);
+  writeConfig(GENERATED_CONFIG_FILE_NAME, newConfig);
+  console.log(`${GENERATED_CONFIG_FILE_NAME} file saved`);
+  return;
+} else {
+  console.log(`Configuration changes detected, updating ${GENERATED_CONFIG_FILE_NAME} file`);
+  console.log('OLD CONFIG: ', currentConfig);
+  console.log('NEW CONFIG: ', newConfig);
+  writeConfig(GENERATED_CONFIG_FILE_NAME, newConfig);
+  console.log(`${GENERATED_CONFIG_FILE_NAME} file updated`);
+};

frontend/mempool-frontend-config.sample.json

@@ -2,11 +2,18 @@
   "TESTNET_ENABLED": false,
   "SIGNET_ENABLED": false,
   "LIQUID_ENABLED": false,
+  "LIQUID_TESTNET_ENABLED": false,
   "BISQ_ENABLED": false,
   "BISQ_SEPARATE_BACKEND": false,
   "ITEMS_PER_PAGE": 10,
   "KEEP_BLOCKS_AMOUNT": 8,
   "NGINX_PROTOCOL": "http",
   "NGINX_HOSTNAME": "127.0.0.1",
-  "NGINX_PORT": "80"
+  "NGINX_PORT": "80",
+  "BLOCK_WEIGHT_UNITS": 4000000,
+  "MEMPOOL_BLOCKS_AMOUNT": 8,
+  "BASE_MODULE": "mempool",
+  "MEMPOOL_WEBSITE_URL": "https://mempool.space",
+  "LIQUID_WEBSITE_URL": "https://liquid.network",
+  "BISQ_WEBSITE_URL": "https://bisq.markets"
 }

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mempool-frontend",
-  "version": "2.2.0-dev",
+  "version": "2.3.0",
   "description": "Bitcoin mempool visualizer and blockchain explorer backend",
   "license": "GNU Affero General Public License v3.0",
   "homepage": "https://mempool.space",
@@ -22,51 +22,72 @@
   "scripts": {
     "ng": "./node_modules/@angular/cli/bin/ng",
     "tsc": "./node_modules/typescript/bin/tsc",
-    "i18n-extract-from-source": "./node_modules/@angular/cli/bin/ng xi18n --ivy --out-file ./src/locale/messages.xlf",
+    "i18n-extract-from-source": "./node_modules/@angular/cli/bin/ng extract-i18n --out-file ./src/locale/messages.xlf",
     "i18n-pull-from-transifex": "tx pull -a --parallel --minimum-perc 1 --force",
-    "serve": "ng serve --proxy-config proxy.conf.json",
-    "start": "npm run generate-config && npm run sync-assets-dev && ng serve --proxy-config proxy.conf.json",
-    "build": "npm run generate-config && ng build --prod --localize && npm run sync-assets && npm run build-mempool.js",
+    "serve": "npm run generate-config && ng serve -c local",
+    "serve:stg": "npm run generate-config && ng serve -c staging",
+    "serve:local-prod": "npm run generate-config && ng serve -c local-prod",
+    "start": "npm run generate-config && npm run sync-assets-dev && ng serve -c local",
+    "start:stg": "npm run generate-config && npm run sync-assets-dev && ng serve -c staging",
+    "start:local-prod": "npm run generate-config && npm run sync-assets-dev && ng serve -c local-prod",
+    "build": "npm run generate-config && ng build --configuration production --localize && npm run sync-assets && npm run build-mempool.js",
     "sync-assets": "node sync-assets.js && rsync -av ./dist/mempool/browser/en-US/resources ./dist/mempool/browser/resources",
     "sync-assets-dev": "node sync-assets.js dev",
     "generate-config": "node generate-config.js",
-    "build-mempool.js": "tsc | browserify -p tinyify ./node_modules/@mempool/mempool.js/lib/index.js --standalone mempoolJS > ./dist/mempool/browser/en-US/mempool.js",
+    "build-mempool.js": "npm run build-mempool-js && npm run build-mempool-liquid-js && npm run build-mempool-bisq-js",
+    "build-mempool-js": "browserify -p tinyify ./node_modules/@mempool/mempool.js/lib/index.js --standalone mempoolJS > ./dist/mempool/browser/en-US/mempool.js",
+    "build-mempool-bisq-js": "browserify -p tinyify ./node_modules/@mempool/mempool.js/lib/index-bisq.js --standalone bisqJS > ./dist/mempool/browser/en-US/bisq.js",
+    "build-mempool-liquid-js": "browserify -p tinyify ./node_modules/@mempool/mempool.js/lib/index-liquid.js --standalone liquidJS > ./dist/mempool/browser/en-US/liquid.js",
     "test": "ng test",
     "lint": "ng lint",
-    "e2e": "ng e2e",
+    "e2e": "npm run generate-config && ng e2e",
+    "e2e:ci": "npm run cypress:run:ci",
+    "config:defaults:mempool": "node update-config.js TESTNET_ENABLED=true SIGNET_ENABLED=true LIQUID_ENABLED=true BISQ_ENABLED=true ITEMS_PER_PAGE=25 BASE_MODULE=mempool && npm run generate-config",
+    "config:defaults:liquid": "node update-config.js TESTNET_ENABLED=true SIGNET_ENABLED=true LIQUID_ENABLED=true BISQ_ENABLED=true ITEMS_PER_PAGE=25 BASE_MODULE=liquid && npm run generate-config",
+    "config:defaults:bisq": "node update-config.js TESTNET_ENABLED=true SIGNET_ENABLED=true LIQUID_ENABLED=true BISQ_ENABLED=true ITEMS_PER_PAGE=25 BASE_MODULE=bisq && npm run generate-config",
     "dev:ssr": "npm run generate-config && ng run mempool:serve-ssr",
     "serve:ssr": "node server.run.js",
     "build:ssr": "npm run build && ng run mempool:server:production && ./node_modules/typescript/bin/tsc server.run.ts",
-    "prerender": "ng run mempool:prerender"
+    "prerender": "ng run mempool:prerender",
+    "cypress:open": "cypress open",
+    "cypress:run": "cypress run",
+    "cypress:run:record": "cypress run --record",
+    "cypress:open:ci": "node update-config.js TESTNET_ENABLED=true SIGNET_ENABLED=true LIQUID_ENABLED=true BISQ_ENABLED=true ITEMS_PER_PAGE=25 && npm run generate-config && start-server-and-test serve:local-prod 4200 cypress:open",
+    "cypress:run:ci": "node update-config.js TESTNET_ENABLED=true SIGNET_ENABLED=true LIQUID_ENABLED=true BISQ_ENABLED=true ITEMS_PER_PAGE=25 && npm run generate-config && start-server-and-test serve:local-prod 4200 cypress:run:record"
   },
   "dependencies": {
-    "@angular/animations": "~11.2.8",
-    "@angular/common": "~11.2.8",
-    "@angular/compiler": "~11.2.8",
-    "@angular/core": "~11.2.8",
-    "@angular/forms": "~11.2.8",
-    "@angular/localize": "^11.2.8",
-    "@angular/platform-browser": "~11.2.8",
-    "@angular/platform-browser-dynamic": "~11.2.8",
-    "@angular/platform-server": "~11.2.8",
-    "@angular/router": "~11.2.8",
+    "@angular-devkit/build-angular": "^13.1.2",
+    "@angular/animations": "~13.1.1",
+    "@angular/cli": "~13.0.4",
+    "@angular/common": "~13.1.1",
+    "@angular/compiler": "~13.1.1",
+    "@angular/core": "~13.1.1",
+    "@angular/forms": "~13.1.1",
+    "@angular/localize": "^13.1.1",
+    "@angular/platform-browser": "~13.1.1",
+    "@angular/platform-browser-dynamic": "~13.1.1",
+    "@angular/platform-server": "~13.1.1",
+    "@angular/router": "~13.1.1",
     "@fortawesome/angular-fontawesome": "^0.8.2",
     "@fortawesome/fontawesome-common-types": "^0.2.35",
     "@fortawesome/fontawesome-svg-core": "^1.2.35",
     "@fortawesome/free-solid-svg-icons": "^5.15.3",
-    "@mempool/chartist": "^0.11.4",
-    "@mempool/mempool.js": "^2.2.0",
-    "@ng-bootstrap/ng-bootstrap": "^7.0.0",
+    "@juggle/resize-observer": "^3.3.1",
+    "@mempool/mempool.js": "2.3.0",
+    "@ng-bootstrap/ng-bootstrap": "^11.0.0",
     "@nguniversal/express-engine": "11.2.1",
-    "@types/qrcode": "^1.3.4",
+    "@types/qrcode": "1.4.1",
     "bootstrap": "4.5.0",
     "browserify": "^17.0.0",
     "clipboard": "^2.0.4",
     "domino": "^2.1.6",
+    "echarts": "^5.1.2",
     "express": "^4.17.1",
+    "lightweight-charts": "^3.3.0",
     "ngx-bootrap-multiselect": "^2.0.0",
+    "ngx-echarts": "^7.0.1",
     "ngx-infinite-scroll": "^10.0.1",
-    "qrcode": "^1.4.4",
+    "qrcode": "1.5.0",
     "rxjs": "^6.6.7",
     "tinyify": "^3.0.0",
     "tlite": "^0.1.9",
@@ -74,10 +95,8 @@
     "zone.js": "~0.11.4"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "^0.1102.7",
-    "@angular/cli": "~11.2.7",
-    "@angular/compiler-cli": "~11.2.8",
-    "@angular/language-service": "~11.2.8",
+    "@angular/compiler-cli": "~13.1.1",
+    "@angular/language-service": "~13.1.1",
     "@nguniversal/builders": "^11.2.1",
     "@types/express": "^4.17.0",
     "@types/jasmine": "~3.6.0",
@@ -87,14 +106,21 @@
     "http-proxy-middleware": "^1.0.5",
     "jasmine-core": "~3.6.0",
     "jasmine-spec-reporter": "~5.0.0",
-    "karma": "~6.1.0",
+    "karma": "~6.3.4",
     "karma-chrome-launcher": "~3.1.0",
     "karma-coverage": "~2.0.3",
     "karma-jasmine": "~4.0.0",
     "karma-jasmine-html-reporter": "^1.5.0",
-    "protractor": "~7.0.0",
     "ts-node": "~8.3.0",
     "tslint": "~6.1.0",
-    "typescript": "~4.1.5"
+    "typescript": "~4.4.4"
+  },
+  "optionalDependencies": {
+    "@cypress/schematic": "^1.3.0",
+    "cypress": "^9.1.1",
+    "cypress-fail-on-console-error": "^2.1.3",
+    "cypress-wait-until": "^1.7.1",
+    "mock-socket": "^9.0.3",
+    "start-server-and-test": "^1.12.6"
   }
 }

frontend/proxy.conf.js

@@ -0,0 +1,90 @@
+const fs = require('fs');
+
+let PROXY_CONFIG;
+let configContent;
+
+const CONFIG_FILE_NAME = 'mempool-frontend-config.json';
+
+try {
+    const rawConfig = fs.readFileSync(CONFIG_FILE_NAME);
+    configContent = JSON.parse(rawConfig);
+    console.log(`${CONFIG_FILE_NAME} file found, using provided config`);
+} catch (e) {
+    console.log(e);
+    if (e.code !== 'ENOENT') {
+      throw new Error(e);
+  } else {
+      console.log(`${CONFIG_FILE_NAME} file not found, using default config`);
+  }
+}
+
+PROXY_CONFIG = [
+    {
+        context: ['*', 
+        '/api/**', '!/api/v1/ws', 
+        '!/bisq', '!/bisq/**', '!/bisq/',
+        '!/liquid', '!/liquid/**', '!/liquid/',
+        '!/liquidtestnet', '!/liquidtestnet/**', '!/liquidtestnet/',
+        '/testnet/api/**', '/signet/api/**'
+        ],
+        target: "https://mempool.space",
+        ws: true,
+        secure: false,
+        changeOrigin: true
+    },
+    {
+        context: ['/api/v1/ws'],
+        target: "https://mempool.space",
+        ws: true,
+        secure: false,
+        changeOrigin: true,
+    },
+    {
+        context: ['/api/bisq**', '/bisq/api/**'],
+        target: "https://bisq.markets",
+        pathRewrite: {
+            "^/api/bisq/": "/bisq/api"
+        },
+        ws: true,
+        secure: false,
+        changeOrigin: true
+    },
+    {
+        context: ['/api/liquid**', '/liquid/api/**'],
+        target: "https://liquid.network",
+        pathRewrite: {
+            "^/api/liquid/": "/liquid/api"
+        },
+        ws: true,
+        secure: false,
+        changeOrigin: true
+    },
+    {
+        context: ['/api/liquidtestnet**', '/liquidtestnet/api/**'],
+        target: "https://liquid.network/testnet",
+        pathRewrite: {
+            "^/api/liquidtestnet/": "/liquidtestnet/api"
+        },
+        ws: true,
+        secure: false,
+        changeOrigin: true
+    }
+];
+
+if (configContent && configContent.BASE_MODULE == "liquid") {
+    PROXY_CONFIG.push({
+        context: ['/resources/pools.json', '/resources/assets.json', '/resources/assets.minimal.json'],
+        target: "https://liquid.network",
+        secure: false,
+        changeOrigin: true,
+    });
+} else {
+    PROXY_CONFIG.push({
+        context: ['/resources/pools.json', '/resources/assets.json', '/resources/assets.minimal.json'],
+        target: "https://mempool.space",
+        secure: false,
+        changeOrigin: true,
+    });
+}
+
+module.exports = PROXY_CONFIG;

frontend/proxy.conf.json

@@ -1,92 +0,0 @@
-{
-  "/api/v1": {
-    "target": "http://localhost:8999/",
-    "secure": false
-  },
-  "/api/v1/ws": {
-    "target": "http://localhost:8999/",
-    "secure": false,
-    "ws": true
-  },
-  "/api/": {
-    "target": "http://localhost:8999/",
-    "secure": false,
-    "pathRewrite": {
-      "^/api/": "/api/v1/"
-    }
-  },
-  "/testnet/api/v1": {
-    "target": "http://localhost:8999/",
-    "secure": false,
-    "pathRewrite": {
-      "^/testnet/api/v1": "/api/v1"
-    }
-  },
-  "/testnet/api/v1/ws": {
-    "target": "http://localhost:8999/",
-    "secure": false,
-    "ws": true,
-    "pathRewrite": {
-      "^/testnet/api": "/api/v1/ws"
-    }
-  },
-  "/testnet/api/": {
-    "target": "http://localhost:50001/",
-    "secure": false,
-    "pathRewrite": {
-      "^/testnet/api": ""
-    }
-  },
-  "/signet/api/v1": {
-    "target": "http://localhost:8999/",
-    "secure": false,
-    "pathRewrite": {
-      "^/signet/api/v1": "/api/v1"
-    }
-  },
-  "/signet/api/v1/ws": {
-    "target": "http://localhost:8999/",
-    "secure": false,
-    "ws": true,
-    "pathRewrite": {
-      "^/signet/api": "/api/v1/ws"
-    }
-  },
-  "/signet/api/": {
-    "target": "http://localhost:50001/",
-    "secure": false,
-    "pathRewrite": {
-      "^/signet/api": ""
-    }
-  },
-  "/liquid/api/v1/ws": {
-    "target": "http://localhost:8999/",
-    "secure": false,
-    "ws": true,
-    "pathRewrite": {
-      "^/liquid/api": "/api/v1/ws"
-    }
-  },
-  "/liquid/api/": {
-    "target": "http://localhost:50001/",
-    "secure": false,
-    "pathRewrite": {
-      "^/liquid/api/": ""
-    }
-  },
-  "/bisq/api/": {
-    "target": "http://localhost:8999/",
-    "secure": false,
-    "pathRewrite": {
-      "^/bisq/api/": "/api/v1/bisq/"
-    }
-  },
-  "/bisq/api/v1/ws": {
-    "target": "http://localhost:8999/",
-    "secure": false,
-    "ws": true,
-    "pathRewrite": {
-      "^/bisq/api": "/api/v1/ws"
-    }
-  }
-}

frontend/proxy.conf.local.js

@@ -0,0 +1,73 @@
+
+const fs = require('fs');
+
+let PROXY_CONFIG = require('./proxy.conf.js');
+const BACKEND_CONFIG_FILE_NAME = '../backend/mempool-config.json';
+const FRONTEND_CONFIG_FILE_NAME = 'mempool-frontend-config.json';
+
+let backendConfigContent;
+let frontendConfigContent;
+
+// Read frontend config 
+try {
+    const rawConfig = fs.readFileSync(FRONTEND_CONFIG_FILE_NAME);
+    frontendConfigContent = JSON.parse(rawConfig);
+    console.log(`${FRONTEND_CONFIG_FILE_NAME} file found, using provided config`);
+} catch (e) {
+    console.log(e);
+    if (e.code !== 'ENOENT') {
+      throw new Error(e);
+  } else {
+      console.log(`${FRONTEND_CONFIG_FILE_NAME} file not found, using default config`);
+  }
+}
+
+// Read backend config
+try {
+    const rawConfig = fs.readFileSync(BACKEND_CONFIG_FILE_NAME);
+    backendConfigContent = JSON.parse(rawConfig);
+    console.log(`${BACKEND_CONFIG_FILE_NAME} file found, using provided config`);
+} catch (e) {
+    console.log(e);
+    if (e.code !== 'ENOENT') {
+      throw new Error(e);
+  } else {
+      console.log(`${BACKEND_CONFIG_FILE_NAME} file not found, using default config`);
+  }
+}
+
+// Remove the "/api/**" entry from the default proxy config
+let localDevContext = PROXY_CONFIG[0].context
+
+localDevContext.splice(PROXY_CONFIG[0].context.indexOf('/api/**'), 1);
+
+PROXY_CONFIG[0].context = localDevContext;
+
+// Change all targets to localhost
+PROXY_CONFIG.map(conf => conf.target = "http://localhost:8999");
+
+// Add rules for local backend
+if (backendConfigContent) {
+    PROXY_CONFIG.push({
+        context: ['/api/address/**', '/api/tx/**', '/api/block/**', '/api/blocks/**'],
+        target: `http://localhost:8999`,
+        secure: false,
+        changeOrigin: true,
+        proxyTimeout: 30000,
+        pathRewrite: {
+            "^/api/": "/api/v1/"
+        },
+    });    
+    PROXY_CONFIG.push({
+        context: ['/api/v1/**'],
+        target: `http://localhost:8999`,
+        secure: false,
+        changeOrigin: true,
+        proxyTimeout: 30000
+    });
+
+}
+
+console.log(PROXY_CONFIG);
+
+module.exports = PROXY_CONFIG;

frontend/server.run.ts

@@ -1,4 +1,4 @@
-import 'zone.js/dist/zone-node';
+import 'zone.js/node';
 import './generated-config';
 
 import * as domino from 'domino';

frontend/server.ts

@@ -1,4 +1,4 @@
-import 'zone.js/dist/zone-node';
+import 'zone.js/node';
 import './generated-config';
 
 import { ngExpressEngine } from '@nguniversal/express-engine';

frontend/src/app/app-routing.module.ts

@@ -14,14 +14,24 @@ import { AssetsComponent } from './assets/assets.component';
 import { StatusViewComponent } from './components/status-view/status-view.component';
 import { DashboardComponent } from './dashboard/dashboard.component';
 import { LatestBlocksComponent } from './components/latest-blocks/latest-blocks.component';
-import { ApiDocsComponent } from './components/api-docs/api-docs.component';
+import { DocsComponent } from './components/docs/docs.component';
 import { TermsOfServiceComponent } from './components/terms-of-service/terms-of-service.component';
+import { PrivacyPolicyComponent } from './components/privacy-policy/privacy-policy.component';
+import { TrademarkPolicyComponent } from './components/trademark-policy/trademark-policy.component';
+import { BisqMasterPageComponent } from './components/bisq-master-page/bisq-master-page.component';
+import { SponsorComponent } from './components/sponsor/sponsor.component';
+import { LiquidMasterPageComponent } from './components/liquid-master-page/liquid-master-page.component';
+import { PushTransactionComponent } from './components/push-transaction/push-transaction.component';
 
-const routes: Routes = [
+let routes: Routes = [
   {
     path: '',
     component: MasterPageComponent,
     children: [
+      {
+        path: 'tx/push',
+        component: PushTransactionComponent,
+      },
       {
         path: '',
         component: StartComponent,
@@ -56,27 +66,322 @@ const routes: Routes = [
         path: 'about',
         component: AboutComponent,
       },
+      {
+        path: 'docs/api/:type',
+        component: DocsComponent
+      },
+      {
+        path: 'docs/api',
+        redirectTo: 'docs/api/rest'
+      },
+      {
+        path: 'docs',
+        redirectTo: 'docs/api/rest'
+      },
       {
         path: 'api',
-        component: ApiDocsComponent,
+        redirectTo: 'docs/api/rest'
       },
       {
         path: 'terms-of-service',
         component: TermsOfServiceComponent
       },
+      {
+        path: 'privacy-policy',
+        component: PrivacyPolicyComponent
+      },
+      {
+        path: 'trademark-policy',
+        component: TrademarkPolicyComponent
+      },
       {
         path: 'address/:id',
         children: [],
         component: AddressComponent
       },
+      {
+        path: 'sponsor',
+        component: SponsorComponent,
+      },
     ],
   },
   {
-    path: 'liquid',
+    path: 'testnet',
     children: [
       {
         path: '',
         component: MasterPageComponent,
+        children: [
+          {
+            path: 'tx/push',
+            component: PushTransactionComponent,
+          },
+          {
+            path: '',
+            component: StartComponent,
+            children: [
+              {
+                path: '',
+                component: DashboardComponent
+              },
+              {
+                path: 'tx/:id',
+                component: TransactionComponent
+              },
+              {
+                path: 'block/:id',
+                component: BlockComponent
+              },
+              {
+                path: 'mempool-block/:id',
+                component: MempoolBlockComponent
+              },
+            ],
+          },
+          {
+            path: 'blocks',
+            component: LatestBlocksComponent,
+          },
+          {
+            path: 'graphs',
+            component: StatisticsComponent,
+          },
+          {
+            path: 'address/:id',
+            children: [],
+            component: AddressComponent
+          },
+          {
+            path: 'docs/api/:type',
+            component: DocsComponent
+          },
+          {
+            path: 'docs/api',
+            redirectTo: 'docs/api/rest'
+          },
+          {
+            path: 'docs',
+            redirectTo: 'docs/api/rest'
+          },
+          {
+            path: 'api',
+            redirectTo: 'docs/api/rest'
+          },
+        ],
+      },
+      {
+        path: 'tv',
+        component: TelevisionComponent
+      },
+      {
+        path: 'status',
+        component: StatusViewComponent
+      },
+      {
+        path: '**',
+        redirectTo: ''
+      },
+    ]
+  },
+  {
+    path: 'signet',
+    children: [
+      {
+        path: '',
+        component: MasterPageComponent,
+        children: [
+          {
+            path: 'tx/push',
+            component: PushTransactionComponent,
+          },
+          {
+            path: '',
+            component: StartComponent,
+            children: [
+              {
+                path: '',
+                component: DashboardComponent
+              },
+              {
+                path: 'tx/:id',
+                component: TransactionComponent
+              },
+              {
+                path: 'block/:id',
+                component: BlockComponent
+              },
+              {
+                path: 'mempool-block/:id',
+                component: MempoolBlockComponent
+              },
+            ],
+          },
+          {
+            path: 'blocks',
+            component: LatestBlocksComponent,
+          },
+          {
+            path: 'graphs',
+            component: StatisticsComponent,
+          },
+          {
+            path: 'address/:id',
+            children: [],
+            component: AddressComponent
+          },
+          {
+            path: 'docs/api/:type',
+            component: DocsComponent
+          },
+          {
+            path: 'docs/api',
+            redirectTo: 'docs/api/rest'
+          },
+          {
+            path: 'docs',
+            redirectTo: 'docs/api/rest'
+          },
+          {
+            path: 'api',
+            redirectTo: 'docs/api/rest'
+          },
+        ],
+      },
+      {
+        path: 'tv',
+        component: TelevisionComponent
+      },
+      {
+        path: 'status',
+        component: StatusViewComponent
+      },
+      {
+        path: '**',
+        redirectTo: ''
+      },
+    ]
+  },
+  {
+    path: 'tv',
+    component: TelevisionComponent,
+  },
+  {
+    path: 'status',
+    component: StatusViewComponent
+  },
+  {
+    path: '**',
+    redirectTo: ''
+  },
+];
+
+const browserWindow = window || {};
+// @ts-ignore
+const browserWindowEnv = browserWindow.__env || {};
+
+if (browserWindowEnv && browserWindowEnv.BASE_MODULE === 'bisq') {
+  routes = [{
+    path: '',
+    component: BisqMasterPageComponent,
+    loadChildren: () => import('./bisq/bisq.module').then(m => m.BisqModule)
+  }];
+}
+
+if (browserWindowEnv && browserWindowEnv.BASE_MODULE === 'liquid') {
+  routes = [{
+    path: '',
+    component: LiquidMasterPageComponent,
+    children: [
+      {
+        path: '',
+        component: StartComponent,
+        children: [
+          {
+            path: '',
+            component: DashboardComponent
+          },
+          {
+            path: 'tx/push',
+            component: PushTransactionComponent,
+          },
+          {
+            path: 'tx/:id',
+            component: TransactionComponent
+          },
+          {
+            path: 'block/:id',
+            component: BlockComponent
+          },
+          {
+            path: 'mempool-block/:id',
+            component: MempoolBlockComponent
+          },
+        ],
+      },
+      {
+        path: 'blocks',
+        component: LatestBlocksComponent,
+      },
+      {
+        path: 'graphs',
+        component: StatisticsComponent,
+      },
+      {
+        path: 'address/:id',
+        component: AddressComponent
+      },
+      {
+        path: 'asset/:id',
+        component: AssetComponent
+      },
+      {
+        path: 'assets',
+        component: AssetsComponent,
+      },
+      {
+        path: 'docs/api/:type',
+        component: DocsComponent
+      },
+      {
+        path: 'docs/api',
+        redirectTo: 'docs/api/rest'
+      },
+      {
+        path: 'docs',
+        redirectTo: 'docs/api/rest'
+      },
+      {
+        path: 'api',
+        redirectTo: 'docs/api/rest'
+      },
+      {
+        path: 'about',
+        component: AboutComponent,
+      },
+      {
+        path: 'terms-of-service',
+        component: TermsOfServiceComponent
+      },
+      {
+        path: 'privacy-policy',
+        component: PrivacyPolicyComponent
+      },
+      {
+        path: 'trademark-policy',
+        component: TrademarkPolicyComponent
+      },
+      {
+        path: 'sponsor',
+        component: SponsorComponent,
+      },
+    ],
+  },
+  {
+    path: 'testnet',
+    children: [
+      {
+        path: '',
+        component: LiquidMasterPageComponent,
         children: [
           {
             path: '',
@@ -86,6 +391,10 @@ const routes: Routes = [
                 path: '',
                 component: DashboardComponent
               },
+              {
+                path: 'tx/push',
+                component: PushTransactionComponent,
+              },
               {
                 path: 'tx/:id',
                 component: TransactionComponent
@@ -120,9 +429,41 @@ const routes: Routes = [
             path: 'assets',
             component: AssetsComponent,
           },
+          {
+            path: 'docs/api/:type',
+            component: DocsComponent
+          },
+          {
+            path: 'docs/api',
+            redirectTo: 'docs/api/rest'
+          },
+          {
+            path: 'docs',
+            redirectTo: 'docs/api/rest'
+          },
           {
             path: 'api',
-            component: ApiDocsComponent,
+            redirectTo: 'docs/api/rest'
+          },
+          {
+            path: 'about',
+            component: AboutComponent,
+          },
+          {
+            path: 'terms-of-service',
+            component: TermsOfServiceComponent
+          },
+          {
+            path: 'privacy-policy',
+            component: PrivacyPolicyComponent
+          },
+          {
+            path: 'trademark-policy',
+            component: TrademarkPolicyComponent
+          },
+          {
+            path: 'sponsor',
+            component: SponsorComponent,
           },
         ],
       },
@@ -134,144 +475,11 @@ const routes: Routes = [
         path: 'status',
         component: StatusViewComponent
       },
-      {
-        path: '**',
-        redirectTo: ''
-      },
     ]
   },
-  {
-    path: 'testnet',
-    children: [
-      {
-        path: '',
-        component: MasterPageComponent,
-        children: [
-          {
-            path: '',
-            component: StartComponent,
-            children: [
-              {
-                path: '',
-                component: DashboardComponent
-              },
-              {
-                path: 'tx/:id',
-                component: TransactionComponent
-              },
-              {
-                path: 'block/:id',
-                component: BlockComponent
-              },
-              {
-                path: 'mempool-block/:id',
-                component: MempoolBlockComponent
-              },
-            ],
-          },
-          {
-            path: 'blocks',
-            component: LatestBlocksComponent,
-          },
-          {
-            path: 'graphs',
-            component: StatisticsComponent,
-          },
-          {
-            path: 'address/:id',
-            children: [],
-            component: AddressComponent
-          },
-          {
-            path: 'api',
-            component: ApiDocsComponent,
-          },
-        ],
-      },
-      {
-        path: 'tv',
-        component: TelevisionComponent
-      },
-      {
-        path: 'status',
-        component: StatusViewComponent
-      },
-      {
-        path: '**',
-        redirectTo: ''
-      },
-    ]
-  },
-  {
-    path: 'signet',
-    children: [
-      {
-        path: '',
-        component: MasterPageComponent,
-        children: [
-          {
-            path: '',
-            component: StartComponent,
-            children: [
-              {
-                path: '',
-                component: DashboardComponent
-              },
-              {
-                path: 'tx/:id',
-                component: TransactionComponent
-              },
-              {
-                path: 'block/:id',
-                component: BlockComponent
-              },
-              {
-                path: 'mempool-block/:id',
-                component: MempoolBlockComponent
-              },
-            ],
-          },
-          {
-            path: 'blocks',
-            component: LatestBlocksComponent,
-          },
-          {
-            path: 'graphs',
-            component: StatisticsComponent,
-          },
-          {
-            path: 'address/:id',
-            children: [],
-            component: AddressComponent
-          },
-          {
-            path: 'api',
-            component: ApiDocsComponent,
-          },
-        ],
-      },
-      {
-        path: 'tv',
-        component: TelevisionComponent
-      },
-      {
-        path: 'status',
-        component: StatusViewComponent
-      },
-      {
-        path: '**',
-        redirectTo: ''
-      },
-    ]
-  },
-  {
-    path: 'bisq',
-    component: MasterPageComponent,
-    loadChildren: () => import('./bisq/bisq.module').then(m => m.BisqModule)
-  },
   {
     path: 'tv',
-    component: TelevisionComponent,
+    component: TelevisionComponent
   },
   {
     path: 'status',
@@ -280,13 +488,16 @@ const routes: Routes = [
   {
     path: '**',
     redirectTo: ''
-  },
-];
+  }];
+}
 
 @NgModule({
   imports: [RouterModule.forRoot(routes, {
-    initialNavigation: 'enabled'
+    initialNavigation: 'enabled',
+    scrollPositionRestoration: 'enabled',
+    anchorScrolling: 'enabled'
 })],
   exports: [RouterModule]
 })
 export class AppRoutingModule { }
+

frontend/src/app/app.constants.ts

@@ -31,6 +31,46 @@ export const mempoolFeeColors = [
   'b9254b',
 ];
 
+export const chartColors = [
+  "#D81B60",
+  "#8E24AA",
+  "#5E35B1",
+  "#3949AB",
+  "#1E88E5",
+  "#039BE5",
+  "#00ACC1",
+  "#00897B",
+  "#43A047",
+  "#7CB342",
+  "#C0CA33",
+  "#FDD835",
+  "#FFB300",
+  "#FB8C00",
+  "#F4511E",
+  "#6D4C41",
+  "#757575",
+  "#546E7A",
+  "#b71c1c",
+  "#880E4F",
+  "#4A148C",
+  "#311B92",
+  "#1A237E",
+  "#0D47A1",
+  "#01579B",
+  "#006064",
+  "#004D40",
+  "#1B5E20",
+  "#33691E",
+  "#827717",
+  "#F57F17",
+  "#FF6F00",
+  "#E65100",
+  "#BF360C",
+  "#3E2723",
+  "#212121",
+  "#263238",
+];
+
 export const feeLevels = [1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 125, 150, 175, 200,
   250, 300, 350, 400, 500, 600, 700, 800, 900, 1000, 1200, 1400, 1600, 1800, 2000];
 
@@ -43,7 +83,7 @@ export const languages: Language[] = [
    { code: 'ar', name: 'العربية' },         // Arabic
 // { code: 'bg', name: 'Български' },       // Bulgarian
 // { code: 'bs', name: 'Bosanski' },        // Bosnian
-// { code: 'ca', name: 'Català' },          // Catalan
+   { code: 'ca', name: 'Català' },          // Catalan
    { code: 'cs', name: 'Čeština' },         // Czech
 // { code: 'da', name: 'Dansk' },           // Danish
    { code: 'de', name: 'Deutsch' },         // German
@@ -59,32 +99,44 @@ export const languages: Language[] = [
    { code: 'ko', name: '한국어' },          // Korean
 // { code: 'hr', name: 'Hrvatski' },        // Croatian
 // { code: 'id', name: 'Bahasa Indonesia' },// Indonesian
+   { code: 'hi', name: 'हिन्दी' },             // Hindi
    { code: 'it', name: 'Italiano' },        // Italian
    { code: 'he', name: 'עברית' },           // Hebrew
    { code: 'ka', name: 'ქართული' },         // Georgian
 // { code: 'lv', name: 'Latviešu' },        // Latvian
 // { code: 'lt', name: 'Lietuvių' },        // Lithuanian
    { code: 'hu', name: 'Magyar' },          // Hungarian
-// { code: 'mk', name: 'Македонски' },      // Macedonian
+   { code: 'mk', name: 'Македонски' },      // Macedonian
 // { code: 'ms', name: 'Bahasa Melayu' },   // Malay
    { code: 'nl', name: 'Nederlands' },      // Dutch
    { code: 'ja', name: '日本語' },          // Japanese
    { code: 'nb', name: 'Norsk' },           // Norwegian Bokmål
 // { code: 'nn', name: 'Norsk Nynorsk' },   // Norwegian Nynorsk
-// { code: 'pl', name: 'Polski' },          // Polish
+   { code: 'pl', name: 'Polski' },          // Polish
    { code: 'pt', name: 'Português' },       // Portuguese
 // { code: 'pt-BR', name: 'Português (Brazil)' }, // Portuguese (Brazil)
-// { code: 'ro', name: 'Română' },          // Romanian
-// { code: 'ru', name: 'Русский' },         // Russian
+   { code: 'ro', name: 'Română' },          // Romanian
+   { code: 'ru', name: 'Русский' },         // Russian
 // { code: 'sk', name: 'Slovenčina' },      // Slovak
    { code: 'sl', name: 'Slovenščina' },     // Slovenian
 // { code: 'sr', name: 'Српски / srpski' }, // Serbian
 // { code: 'sh', name: 'Srpskohrvatski / српскохрватски' },// Serbo-Croatian
    { code: 'fi', name: 'Suomi' },           // Finnish
    { code: 'sv', name: 'Svenska' },         // Swedish
-// { code: 'th', name: 'ไทย' },             // Thai
+   { code: 'th', name: 'ไทย' },             // Thai
    { code: 'tr', name: 'Türkçe' },          // Turkish
    { code: 'uk', name: 'Українська' },      // Ukrainian
    { code: 'vi', name: 'Tiếng Việt' },      // Vietnamese
    { code: 'zh', name: '中文' },            // Chinese
 ];
+
+export const specialBlocks = {
+  '709632': {
+    labelEvent: 'Taproot 🌱 activation',
+    labelEventCompleted: 'Taproot 🌱 has been activated!',
+  },
+  '840000': {
+    labelEvent: 'Halving 🥳',
+    labelEventCompleted: 'Block Subsidy has halved to 3.125 BTC per block',
+  }
+};

frontend/src/app/app.module.ts

@@ -3,6 +3,7 @@ import { NgModule } from '@angular/core';
 import { HttpClientModule, HTTP_INTERCEPTORS } from '@angular/common/http';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 import { InfiniteScrollModule } from 'ngx-infinite-scroll';
+import { NgxEchartsModule } from 'ngx-echarts';
 
 import { AppRoutingModule } from './app-routing.module';
 import { AppComponent } from './components/app/app.component';
@@ -21,19 +22,22 @@ import { WebsocketService } from './services/websocket.service';
 import { AddressLabelsComponent } from './components/address-labels/address-labels.component';
 import { MempoolBlocksComponent } from './components/mempool-blocks/mempool-blocks.component';
 import { MasterPageComponent } from './components/master-page/master-page.component';
+import { BisqMasterPageComponent } from './components/bisq-master-page/bisq-master-page.component';
+import { LiquidMasterPageComponent } from './components/liquid-master-page/liquid-master-page.component';
 import { AboutComponent } from './components/about/about.component';
 import { TelevisionComponent } from './components/television/television.component';
 import { StatisticsComponent } from './components/statistics/statistics.component';
-import { ChartistComponent } from './components/statistics/chartist.component';
 import { BlockchainBlocksComponent } from './components/blockchain-blocks/blockchain-blocks.component';
 import { BlockchainComponent } from './components/blockchain/blockchain.component';
 import { FooterComponent } from './components/footer/footer.component';
 import { AudioService } from './services/audio.service';
 import { MempoolBlockComponent } from './components/mempool-block/mempool-block.component';
 import { FeeDistributionGraphComponent } from './components/fee-distribution-graph/fee-distribution-graph.component';
-import { TimespanComponent } from './components/timespan/timespan.component';
+import { IncomingTransactionsGraphComponent } from './components/incoming-transactions-graph/incoming-transactions-graph.component';
+import { TimeSpanComponent } from './components/time-span/time-span.component';
 import { SeoService } from './services/seo.service';
 import { MempoolGraphComponent } from './components/mempool-graph/mempool-graph.component';
+import { LbtcPegsGraphComponent } from './components/lbtc-pegs-graph/lbtc-pegs-graph.component';
 import { AssetComponent } from './components/asset/asset.component';
 import { AssetsComponent } from './assets/assets.component';
 import { StatusViewComponent } from './components/status-view/status-view.component';
@@ -43,18 +47,29 @@ import { NgbTypeaheadModule } from '@ng-bootstrap/ng-bootstrap';
 import { FeesBoxComponent } from './components/fees-box/fees-box.component';
 import { DashboardComponent } from './dashboard/dashboard.component';
 import { FontAwesomeModule, FaIconLibrary } from '@fortawesome/angular-fontawesome';
-import { faAngleDown, faAngleUp, faBolt, faChartArea, faCogs, faCubes, faDatabase, faExchangeAlt, faInfoCircle,
-  faLink, faList, faSearch, faTachometerAlt, faThList, faTint, faTv, faAngleDoubleDown, faAngleDoubleUp } from '@fortawesome/free-solid-svg-icons';
-import { ApiDocsComponent } from './components/api-docs/api-docs.component';
+import { faFilter, faAngleDown, faAngleUp, faAngleRight, faAngleLeft, faBolt, faChartArea, faCogs, faCubes, faDatabase, faExchangeAlt, faInfoCircle,
+  faLink, faList, faSearch, faCaretUp, faCaretDown, faTachometerAlt, faThList, faTint, faTv, faAngleDoubleDown, faSortUp, faAngleDoubleUp, faChevronDown, faFileAlt, faRedoAlt, faArrowAltCircleRight, faExternalLinkAlt, faBook, faListUl } from '@fortawesome/free-solid-svg-icons';
+import { ApiDocsComponent } from './components/docs/api-docs.component';
+import { DocsComponent } from './components/docs/docs.component';
+import { ApiDocsNavComponent } from './components/docs/api-docs-nav.component';
+import { CodeTemplateComponent } from './components/docs/code-template.component';
 import { TermsOfServiceComponent } from './components/terms-of-service/terms-of-service.component';
+import { PrivacyPolicyComponent } from './components/privacy-policy/privacy-policy.component';
+import { TrademarkPolicyComponent } from './components/trademark-policy/trademark-policy.component';
 import { StorageService } from './services/storage.service';
 import { HttpCacheInterceptor } from './services/http-cache.interceptor';
+import { LanguageService } from './services/language.service';
+import { SponsorComponent } from './components/sponsor/sponsor.component';
+import { PushTransactionComponent } from './components/push-transaction/push-transaction.component';
+import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
 
 @NgModule({
   declarations: [
     AppComponent,
     AboutComponent,
     MasterPageComponent,
+    BisqMasterPageComponent,
+    LiquidMasterPageComponent,
     TelevisionComponent,
     BlockchainComponent,
     StartComponent,
@@ -67,14 +82,15 @@ import { HttpCacheInterceptor } from './services/http-cache.interceptor';
     AmountComponent,
     LatestBlocksComponent,
     SearchFormComponent,
-    TimespanComponent,
+    TimeSpanComponent,
     AddressLabelsComponent,
     MempoolBlocksComponent,
-    ChartistComponent,
     FooterComponent,
     MempoolBlockComponent,
     FeeDistributionGraphComponent,
+    IncomingTransactionsGraphComponent,
     MempoolGraphComponent,
+    LbtcPegsGraphComponent,
     AssetComponent,
     AssetsComponent,
     MinerComponent,
@@ -82,7 +98,14 @@ import { HttpCacheInterceptor } from './services/http-cache.interceptor';
     FeesBoxComponent,
     DashboardComponent,
     ApiDocsComponent,
+    CodeTemplateComponent,
     TermsOfServiceComponent,
+    PrivacyPolicyComponent,
+    TrademarkPolicyComponent,
+    SponsorComponent,
+    PushTransactionComponent,
+    DocsComponent,
+    ApiDocsNavComponent,
   ],
   imports: [
     BrowserModule.withServerTransition({ appId: 'serverApp' }),
@@ -92,8 +115,12 @@ import { HttpCacheInterceptor } from './services/http-cache.interceptor';
     BrowserAnimationsModule,
     InfiniteScrollModule,
     NgbTypeaheadModule,
+    NgbModule,
     FontAwesomeModule,
     SharedModule,
+    NgxEchartsModule.forRoot({
+      echarts: () => import('echarts')
+    })
   ],
   providers: [
     ElectrsApiService,
@@ -102,6 +129,7 @@ import { HttpCacheInterceptor } from './services/http-cache.interceptor';
     AudioService,
     SeoService,
     StorageService,
+    LanguageService,
     { provide: HTTP_INTERCEPTORS, useClass: HttpCacheInterceptor, multi: true }
   ],
   bootstrap: [AppComponent]
@@ -122,10 +150,23 @@ export class AppModule {
     library.addIcons(faLink);
     library.addIcons(faBolt);
     library.addIcons(faTint);
+    library.addIcons(faFilter);
     library.addIcons(faAngleDown);
     library.addIcons(faAngleUp);
     library.addIcons(faExchangeAlt);
     library.addIcons(faAngleDoubleUp);
     library.addIcons(faAngleDoubleDown);
+    library.addIcons(faChevronDown);
+    library.addIcons(faFileAlt);
+    library.addIcons(faRedoAlt);
+    library.addIcons(faArrowAltCircleRight);
+    library.addIcons(faExternalLinkAlt);
+    library.addIcons(faSortUp);
+    library.addIcons(faCaretUp);
+    library.addIcons(faCaretDown);
+    library.addIcons(faAngleRight);
+    library.addIcons(faAngleLeft);
+    library.addIcons(faBook);
+    library.addIcons(faListUl);
   }
 }