Merge branch 'master' into natsoni/federation-utxos-expiry

.github/workflows/get_backend_block_height.yml

@@ -0,0 +1,19 @@
+name: 'Check if servers are in sync'
+
+on: [workflow_dispatch]
+
+jobs:
+  print-backend-sha:
+    runs-on: 'ubuntu-latest'
+    name: Get block height
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          path: repo
+
+      - name: Run script
+        working-directory: repo
+        run: |
+          chmod +x ./scripts/get_block_tip_height.sh
+          sh ./scripts/get_block_tip_height.sh

Cargo.lock

@@ -57,9 +57,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1586fa608b1dab41f667475b4a41faec5ba680aee428bfa5de4ea520fdc6e901"
 dependencies = [
  "quote",
- "syn 2.0.20",
+ "syn",
 ]
 
+[[package]]
+name = "equivalent"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
+
 [[package]]
 name = "gbt"
 version = "1.0.0"
@@ -71,15 +77,15 @@ dependencies = [
  "napi-derive",
  "priority-queue",
  "tracing",
- "tracing-log",
+ "tracing-log 0.2.0",
  "tracing-subscriber",
 ]
 
 [[package]]
 name = "hashbrown"
-version = "0.12.3"
+version = "0.14.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
+checksum = "290f1a1d9242c78d09ce40a5e87e7554ee637af1351968159f4952f028f75604"
 
 [[package]]
 name = "hermit-abi"
@@ -92,11 +98,11 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.9.3"
+version = "2.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99"
+checksum = "7b0b929d511467233429c45a44ac1dcaa21ba0f5ba11e4879e6ed28ddb4f9df4"
 dependencies = [
- "autocfg",
+ "equivalent",
  "hashbrown",
 ]
 
@@ -114,12 +120,12 @@ checksum = "f92be4933c13fd498862a9e02a3055f8a8d9c039ce33db97306fd5a6caa7f29b"
 
 [[package]]
 name = "libloading"
-version = "0.7.4"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b67380fd3b2fbe7527a606e18729d21c6f3951633d0500574c4dc22d2d638b9f"
+checksum = "2caa5afb8bf9f3a2652760ce7d4f62d21c4d5a423e68466fca30df82f2330164"
 dependencies = [
  "cfg-if",
- "winapi",
+ "windows-targets",
 ]
 
 [[package]]
@@ -145,9 +151,9 @@ checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "napi"
-version = "2.13.2"
+version = "2.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ede2d12cd6fce44da537a4be1f5510c73be2506c2e32dfaaafd1f36968f3a0e"
+checksum = "54a63d0570e4c3e0daf7a8d380563610e159f538e20448d6c911337246f40e84"
 dependencies = [
  "bitflags",
  "ctor",
@@ -159,29 +165,29 @@ dependencies = [
 
 [[package]]
 name = "napi-build"
-version = "2.0.1"
+version = "2.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "882a73d9ef23e8dc2ebbffb6a6ae2ef467c0f18ac10711e4cc59c5485d41df0e"
+checksum = "2f9130fccc5f763cf2069b34a089a18f0d0883c66aceb81f2fad541a3d823c43"
 
 [[package]]
 name = "napi-derive"
-version = "2.13.0"
+version = "2.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da1c6a8fa84d549aa8708fcd062372bf8ec6e849de39016ab921067d21bde367"
+checksum = "05bb7c37e3c1dda9312fdbe4a9fc7507fca72288ba154ec093e2d49114e727ce"
 dependencies = [
  "cfg-if",
  "convert_case",
  "napi-derive-backend",
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn",
 ]
 
 [[package]]
 name = "napi-derive-backend"
-version = "1.0.52"
+version = "1.0.62"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20bbc7c69168d06a848f925ec5f0e0997f98e8c8d4f2cc30157f0da51c009e17"
+checksum = "f785a8b8d7b83e925f5aa6d2ae3c159d17fe137ac368dc185bef410e7acdaeb4"
 dependencies = [
  "convert_case",
  "once_cell",
@@ -189,14 +195,14 @@ dependencies = [
  "quote",
  "regex",
  "semver",
- "syn 1.0.109",
+ "syn",
 ]
 
 [[package]]
 name = "napi-sys"
-version = "2.2.3"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "166b5ef52a3ab5575047a9fe8d4a030cdd0f63c96f071cd6907674453b07bae3"
+checksum = "2503fa6af34dc83fb74888df8b22afe933b58d37daf7d80424b1c60c68196b8b"
 dependencies = [
  "libloading",
 ]
@@ -223,9 +229,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.18.0"
+version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
+checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
 [[package]]
 name = "overload"
@@ -241,11 +247,12 @@ checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116"
 
 [[package]]
 name = "priority-queue"
-version = "1.3.2"
+version = "2.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fff39edfcaec0d64e8d0da38564fad195d2d51b680940295fcc307366e101e61"
+checksum = "509354d8a769e8d0b567d6821b84495c60213162761a732d68ce87c964bd347f"
 dependencies = [
  "autocfg",
+ "equivalent",
  "indexmap",
 ]
 
@@ -320,17 +327,6 @@ version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
 
-[[package]]
-name = "syn"
-version = "1.0.109"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
-dependencies = [
- "proc-macro2",
- "quote",
- "unicode-ident",
-]
-
 [[package]]
 name = "syn"
 version = "2.0.20"
@@ -384,7 +380,7 @@ checksum = "5f4f31f56159e98206da9efd823404b79b6ef3143b4a7ab76e67b1751b25a4ab"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.20",
+ "syn",
 ]
 
 [[package]]
@@ -408,6 +404,17 @@ dependencies = [
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-log"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee855f1f400bd0e5c02d150ae5de3840039a3f54b025156404e34c23c03f47c3"
+dependencies = [
+ "log",
+ "once_cell",
+ "tracing-core",
+]
+
 [[package]]
 name = "tracing-subscriber"
 version = "0.3.17"
@@ -423,7 +430,7 @@ dependencies = [
  "thread_local",
  "tracing",
  "tracing-core",
- "tracing-log",
+ "tracing-log 0.1.3",
 ]
 
 [[package]]

Cargo.toml

@@ -1,4 +1,5 @@
 [workspace]
+resolver = "2"
 members = [
 	"./backend/rust-gbt",
 ]

backend/mempool-config.sample.json

@@ -1,5 +1,6 @@
 {
   "MEMPOOL": {
+    "OFFICIAL": false,
     "NETWORK": "mainnet",
     "BACKEND": "electrum",
     "ENABLED": true,

backend/package-lock.json

@@ -9,6 +9,7 @@
       "version": "3.0.0-dev",
       "license": "GNU Affero General Public License v3.0",
       "dependencies": {
+        "@babel/core": "^7.24.0",
         "@mempool/electrum-client": "1.1.9",
         "@types/node": "^18.15.3",
         "axios": "~1.6.1",
@@ -1499,9 +1500,9 @@
       }
     },
     "node_modules/@napi-rs/cli": {
-      "version": "2.16.1",
+      "version": "2.18.0",
-      "resolved": "https://registry.npmjs.org/@napi-rs/cli/-/cli-2.16.1.tgz",
+      "resolved": "https://registry.npmjs.org/@napi-rs/cli/-/cli-2.18.0.tgz",
-      "integrity": "sha512-L0Gr5iEQIDEbvWdDr1HUaBOxBSHL1VZhWSk1oryawoT8qJIY+KGfLFelU+Qma64ivCPbxYpkfPoKYVG3rcoGIA==",
+      "integrity": "sha512-lfSRT7cs3iC4L+kv9suGYQEezn5Nii7Kpu+THsYVI0tA1Vh59LH45p4QADaD7hvIkmOz79eEGtoKQ9nAkAPkzA==",
       "bin": {
         "napi": "scripts/index.js"
       },
@@ -7669,7 +7670,7 @@
       "version": "3.0.1",
       "hasInstallScript": true,
       "dependencies": {
-        "@napi-rs/cli": "2.16.1"
+        "@napi-rs/cli": "2.18.0"
       },
       "engines": {
         "node": ">= 12"
@@ -8774,9 +8775,9 @@
       "integrity": "sha512-mlvPiCzUlaETpYW3i6V87A24jjMYgsebaXtUo3WQyyLnYUuxs0KiXQ2mnKh3h15j8Xg/hfxeGIi+5OC9u0nftQ=="
     },
     "@napi-rs/cli": {
-      "version": "2.16.1",
+      "version": "2.18.0",
-      "resolved": "https://registry.npmjs.org/@napi-rs/cli/-/cli-2.16.1.tgz",
+      "resolved": "https://registry.npmjs.org/@napi-rs/cli/-/cli-2.18.0.tgz",
-      "integrity": "sha512-L0Gr5iEQIDEbvWdDr1HUaBOxBSHL1VZhWSk1oryawoT8qJIY+KGfLFelU+Qma64ivCPbxYpkfPoKYVG3rcoGIA=="
+      "integrity": "sha512-lfSRT7cs3iC4L+kv9suGYQEezn5Nii7Kpu+THsYVI0tA1Vh59LH45p4QADaD7hvIkmOz79eEGtoKQ9nAkAPkzA=="
     },
     "@noble/hashes": {
       "version": "1.3.0",
@@ -12702,7 +12703,7 @@
     "rust-gbt": {
       "version": "file:rust-gbt",
       "requires": {
-        "@napi-rs/cli": "2.16.1"
+        "@napi-rs/cli": "2.18.0"
       }
     },
     "safe-buffer": {

backend/rust-gbt/Cargo.toml

@@ -12,14 +12,14 @@ crate-type = ["cdylib"]
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-priority-queue = "1.3.2"
+priority-queue = "2.0.2"
 bytes = "1.4.0"
-napi = { version = "2.13.2", features = ["napi8", "tokio_rt"] }
+napi = { version = "2.16.0", features = ["napi8", "tokio_rt"] }
-napi-derive = "2.13.0"
+napi-derive = "2.16.0"
 bytemuck = "1.13.1"
 tracing = "0.1.36"
-tracing-log = "0.1.3"
+tracing-log = "0.2.0"
 tracing-subscriber = { version = "0.3.15", features = ["env-filter"]}
 
 [build-dependencies]
-napi-build = "2.0.1"
+napi-build = "2.1.2"

backend/rust-gbt/index.js

@@ -237,6 +237,49 @@ switch (platform) {
           loadError = e
         }
         break
+      case 'riscv64':
+        if (isMusl()) {
+          localFileExisted = existsSync(
+            join(__dirname, 'gbt.linux-riscv64-musl.node')
+          )
+          try {
+            if (localFileExisted) {
+              nativeBinding = require('./gbt.linux-riscv64-musl.node')
+            } else {
+              nativeBinding = require('gbt-linux-riscv64-musl')
+            }
+          } catch (e) {
+            loadError = e
+          }
+        } else {
+          localFileExisted = existsSync(
+            join(__dirname, 'gbt.linux-riscv64-gnu.node')
+          )
+          try {
+            if (localFileExisted) {
+              nativeBinding = require('./gbt.linux-riscv64-gnu.node')
+            } else {
+              nativeBinding = require('gbt-linux-riscv64-gnu')
+            }
+          } catch (e) {
+            loadError = e
+          }
+        }
+        break
+      case 's390x':
+        localFileExisted = existsSync(
+          join(__dirname, 'gbt.linux-s390x-gnu.node')
+        )
+        try {
+          if (localFileExisted) {
+            nativeBinding = require('./gbt.linux-s390x-gnu.node')
+          } else {
+            nativeBinding = require('gbt-linux-s390x-gnu')
+          }
+        } catch (e) {
+          loadError = e
+        }
+        break
       default:
         throw new Error(`Unsupported architecture on Linux: ${arch}`)
     }

backend/rust-gbt/package-lock.json

@@ -9,16 +9,16 @@
       "version": "3.0.1",
       "hasInstallScript": true,
       "dependencies": {
-        "@napi-rs/cli": "2.16.1"
+        "@napi-rs/cli": "2.18.0"
       },
       "engines": {
         "node": ">= 12"
       }
     },
     "node_modules/@napi-rs/cli": {
-      "version": "2.16.1",
+      "version": "2.18.0",
-      "resolved": "https://registry.npmjs.org/@napi-rs/cli/-/cli-2.16.1.tgz",
+      "resolved": "https://registry.npmjs.org/@napi-rs/cli/-/cli-2.18.0.tgz",
-      "integrity": "sha512-L0Gr5iEQIDEbvWdDr1HUaBOxBSHL1VZhWSk1oryawoT8qJIY+KGfLFelU+Qma64ivCPbxYpkfPoKYVG3rcoGIA==",
+      "integrity": "sha512-lfSRT7cs3iC4L+kv9suGYQEezn5Nii7Kpu+THsYVI0tA1Vh59LH45p4QADaD7hvIkmOz79eEGtoKQ9nAkAPkzA==",
       "bin": {
         "napi": "scripts/index.js"
       },

backend/rust-gbt/package.json

@@ -25,7 +25,7 @@
     }
   },
   "dependencies": {
-    "@napi-rs/cli": "2.16.1"
+    "@napi-rs/cli": "2.18.0"
   },
   "engines": {
     "node": ">= 12"

backend/src/__fixtures__/mempool-config.template.json

@@ -1,6 +1,7 @@
 {
   "MEMPOOL": {
     "ENABLED": true,
+    "OFFICIAL": false,
     "NETWORK": "__MEMPOOL_NETWORK__",
     "BACKEND": "__MEMPOOL_BACKEND__",
     "BLOCKS_SUMMARIES_INDEXING": true,
@@ -79,7 +80,8 @@
     "USERNAME": "__DATABASE_USERNAME__",
     "PASSWORD": "__DATABASE_PASSWORD__",
     "PID_DIR": "__DATABASE_PID_FILE__",
-    "TIMEOUT": 3000
+    "TIMEOUT": 3000,
+    "POOL_SIZE": 100
   },
   "SYSLOG": {
     "ENABLED": false,

backend/src/__tests__/config.test.ts

@@ -14,6 +14,7 @@ describe('Mempool Backend Config', () => {
 
       expect(config.MEMPOOL).toStrictEqual({
         ENABLED: true,
+        OFFICIAL: false,
         NETWORK: 'mainnet',
         BACKEND: 'none',
         BLOCKS_SUMMARIES_INDEXING: false,
@@ -93,7 +94,8 @@ describe('Mempool Backend Config', () => {
         USERNAME: 'mempool',
         PASSWORD: 'mempool',
         TIMEOUT: 180000,
-        PID_DIR: ''
+        PID_DIR: '',
+        POOL_SIZE: 100,
       });
 
       expect(config.SYSLOG).toStrictEqual({

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

@@ -29,6 +29,7 @@ export interface AbstractBitcoinApi {
   $getOutSpendsByOutpoint(outpoints: { txid: string, vout: number }[]): Promise<IEsploraApi.Outspend[]>;
 
   startHealthChecks(): void;
+  getHealthStatus(): HealthCheckHost[];
 }
 export interface BitcoinRpcCredentials {
   host: string;
@@ -38,3 +39,15 @@ export interface BitcoinRpcCredentials {
   timeout: number;
   cookie?: string;
 }
+
+export interface HealthCheckHost {
+  host: string;
+  active: boolean;
+  rtt: number;
+  latestHeight: number;
+  socket: boolean;
+  outOfSync: boolean;
+  unreachable: boolean;
+  checked: boolean;
+  lastChecked: number;
+}

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

@@ -1,5 +1,5 @@
 import * as bitcoinjs from 'bitcoinjs-lib';
-import { AbstractBitcoinApi } from './bitcoin-api-abstract-factory';
+import { AbstractBitcoinApi, HealthCheckHost } from './bitcoin-api-abstract-factory';
 import { IBitcoinApi } from './bitcoin-api.interface';
 import { IEsploraApi } from './esplora-api.interface';
 import blocks from '../blocks';
@@ -382,6 +382,10 @@ class BitcoinApi implements AbstractBitcoinApi {
   }
 
   public startHealthChecks(): void {};
+
+  public getHealthStatus() {
+    return [];
+  }
 }
 
 export default BitcoinApi;

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

@@ -1,7 +1,7 @@
 import config from '../../config';
-import axios, { AxiosResponse } from 'axios';
+import axios, { AxiosResponse, isAxiosError } from 'axios';
 import http from 'http';
-import { AbstractBitcoinApi } from './bitcoin-api-abstract-factory';
+import { AbstractBitcoinApi, HealthCheckHost } from './bitcoin-api-abstract-factory';
 import { IEsploraApi } from './esplora-api.interface';
 import logger from '../../logger';
 import { Common } from '../common';
@@ -10,6 +10,7 @@ interface FailoverHost {
   host: string,
   rtts: number[],
   rtt: number,
+  timedOut?: boolean,
   failures: number,
   latestHeight?: number,
   socket?: boolean,
@@ -17,6 +18,7 @@ interface FailoverHost {
   unreachable?: boolean,
   preferred?: boolean,
   checked: boolean,
+  lastChecked?: number,
 }
 
 class FailoverRouter {
@@ -108,14 +110,20 @@ class FailoverRouter {
           host.rtts = [];
           host.rtt = Infinity;
         }
+        host.timedOut = false;
       } catch (e) {
         host.outOfSync = true;
         host.unreachable = true;
         host.rtts = [];
         host.rtt = Infinity;
+        if (isAxiosError(e) && (e.code === 'ECONNABORTED' || e.code === 'ETIMEDOUT')) {
+          host.timedOut = true;
+        } else {
+          host.timedOut = false;
+        }
       }
       host.checked = true;
-      
+      host.lastChecked = Date.now();
 
       // switch if the current host is out of sync or significantly slower than the next best alternative
       const rankOrder = this.sortHosts();
@@ -143,7 +151,7 @@ class FailoverRouter {
 
   private formatRanking(index: number, host: FailoverHost, active: FailoverHost, maxHeight: number): string {
     const heightStatus = !host.checked ? '⏳' : (host.outOfSync ? '🚫' : (host.latestHeight && host.latestHeight < maxHeight ? '🟧' : '✅'));
-    return `${host === active ? '⭐️' : '  '} ${host.rtt < Infinity ? Math.round(host.rtt).toString().padStart(5, ' ') + 'ms' : '    -  '} ${!host.checked ? '⏳' : (host.unreachable ? '🔥' : '✅')} | block: ${host.latestHeight || '??????'} ${heightStatus} | ${host.host} ${host === active ? '⭐️' : '  '}`;
+    return `${host === active ? '⭐️' : '  '} ${host.rtt < Infinity ? Math.round(host.rtt).toString().padStart(5, ' ') + 'ms' : (host.timedOut ? '  ⌛️💥 ' : '    -  ')} ${!host.checked ? '⏳' : (host.unreachable ? '🔥' : '✅')} | block: ${host.latestHeight || '??????'} ${heightStatus} | ${host.host} ${host === active ? '⭐️' : '  '}`;
   }
 
   private updateFallback(): FailoverHost[] {
@@ -157,7 +165,7 @@ class FailoverRouter {
   }
 
   // sort hosts by connection quality, and update default fallback
-  private sortHosts(): FailoverHost[] {
+  public sortHosts(): FailoverHost[] {
     // sort by connection quality
     return this.hosts.slice().sort((a, b) => {
       if ((a.unreachable || a.outOfSync) === (b.unreachable || b.outOfSync)) {
@@ -342,6 +350,24 @@ class ElectrsApi implements AbstractBitcoinApi {
   public startHealthChecks(): void {
     this.failoverRouter.startHealthChecks();
   }
+
+  public getHealthStatus(): HealthCheckHost[] {
+    if (config.MEMPOOL.OFFICIAL) {
+      return this.failoverRouter.sortHosts().map(host => ({
+        host: host.host,
+        active: host === this.failoverRouter.activeHost,
+        rtt: host.rtt,
+        latestHeight: host.latestHeight || 0,
+        socket: !!host.socket,
+        outOfSync: !!host.outOfSync,
+        unreachable: !!host.unreachable,
+        checked: !!host.checked,
+        lastChecked: host.lastChecked || 0,
+      }));
+    } else {
+      return [];
+    }
+  }
 }
 
 export default ElectrsApi;

backend/src/api/websocket-handler.ts

@@ -26,6 +26,7 @@ import mempool from './mempool';
 import statistics from './statistics/statistics';
 import accelerationCosts from './acceleration';
 import accelerationRepository from '../repositories/AccelerationRepository';
+import bitcoinApi from './bitcoin/bitcoin-api-factory';
 
 interface AddressTransactions {
   mempool: MempoolTransactionExtended[],
@@ -39,6 +40,7 @@ const wantable = [
   'mempool-blocks',
   'live-2h-chart',
   'stats',
+  'tomahawk',
 ];
 
 class WebsocketHandler {
@@ -123,7 +125,7 @@ class WebsocketHandler {
             for (const sub of wantable) {
               const key = `want-${sub}`;
               const wants = parsedMessage.data.includes(sub);
-              if (wants && client['wants'] && !client[key]) {
+              if (wants && !client[key]) {
                 wantNow[key] = true;
               }
               client[key] = wants;
@@ -147,6 +149,10 @@ class WebsocketHandler {
             response['da'] = this.socketData['da'];
           }
 
+          if (wantNow['want-tomahawk']) {
+            response['tomahawk'] = JSON.stringify(bitcoinApi.getHealthStatus());
+          }
+
           if (parsedMessage && parsedMessage['track-tx']) {
             if (/^[a-fA-F0-9]{64}$/.test(parsedMessage['track-tx'])) {
               client['track-tx'] = parsedMessage['track-tx'];
@@ -546,6 +552,10 @@ class WebsocketHandler {
         response['mempool-blocks'] = getCachedResponse('mempool-blocks', mBlocks);
       }
 
+      if (client['want-tomahawk']) {
+        response['tomahawk'] = getCachedResponse('tomahawk', bitcoinApi.getHealthStatus());
+      }
+
       if (client['track-mempool-tx']) {
         const tx = newTransactions.find((t) => t.txid === client['track-mempool-tx']);
         if (tx) {
@@ -909,6 +919,10 @@ class WebsocketHandler {
         response['mempool-blocks'] = getCachedResponse('mempool-blocks', mBlocks);
       }
 
+      if (client['want-tomahawk']) {
+        response['tomahawk'] = getCachedResponse('tomahawk', bitcoinApi.getHealthStatus());
+      }
+
       if (client['track-tx']) {
         const trackTxid = client['track-tx'];
         if (trackTxid && confirmedTxids[trackTxid]) {

backend/src/config.ts

@@ -5,6 +5,7 @@ const configFromFile = require(
 interface IConfig {
   MEMPOOL: {
     ENABLED: boolean;
+    OFFICIAL: boolean;
     NETWORK: 'mainnet' | 'testnet' | 'signet' | 'liquid' | 'liquidtestnet';
     BACKEND: 'esplora' | 'electrum' | 'none';
     HTTP_PORT: number;
@@ -103,6 +104,7 @@ interface IConfig {
     PASSWORD: string;
     TIMEOUT: number;
     PID_DIR: string;
+    POOL_SIZE: number;
   };
   SYSLOG: {
     ENABLED: boolean;
@@ -161,6 +163,7 @@ interface IConfig {
 const defaults: IConfig = {
   'MEMPOOL': {
     'ENABLED': true,
+    'OFFICIAL': false,
     'NETWORK': 'mainnet',
     'BACKEND': 'none',
     'HTTP_PORT': 8999,
@@ -240,6 +243,7 @@ const defaults: IConfig = {
     'PASSWORD': 'mempool',
     'TIMEOUT': 180000,
     'PID_DIR': '',
+    'POOL_SIZE': 100,
   },
   'SYSLOG': {
     'ENABLED': true,

backend/src/database.ts

@@ -21,7 +21,7 @@ import { execSync } from 'child_process';
     database: config.DATABASE.DATABASE,
     user: config.DATABASE.USERNAME,
     password: config.DATABASE.PASSWORD,
-    connectionLimit: 10,
+    connectionLimit: config.DATABASE.POOL_SIZE,
     supportBigNumbers: true,
     timezone: '+00:00',
   };

backend/src/index.ts

@@ -155,11 +155,17 @@ class Server {
     }
 
     if (Common.isLiquid()) {
-      try {
+      const refreshIcons = () => {
-        icons.loadIcons();
+        try {
-      } catch (e) {
+          icons.loadIcons();
-        logger.err('Cannot load liquid icons. Ignoring. Reason: ' + (e instanceof Error ? e.message : e));
+        } catch (e) {
-      }
+          logger.err('Cannot load liquid icons. Ignoring. Reason: ' + (e instanceof Error ? e.message : e));
+        }
+      };
+      // Run once on startup.
+      refreshIcons();
+      // Matches crontab refresh interval for asset db.
+      setInterval(refreshIcons, 3600_000);
     }
 
     priceUpdater.$run();

docker/backend/mempool-config.json

@@ -3,6 +3,7 @@
     "NETWORK": "__MEMPOOL_NETWORK__",
     "BACKEND": "__MEMPOOL_BACKEND__",
     "ENABLED": __MEMPOOL_ENABLED__,
+    "OFFICIAL": __MEMPOOL_OFFICIAL__,
     "HTTP_PORT": __MEMPOOL_HTTP_PORT__,
     "SPAWN_CLUSTER_PROCS": __MEMPOOL_SPAWN_CLUSTER_PROCS__,
     "API_URL_PREFIX": "__MEMPOOL_API_URL_PREFIX__",
@@ -79,7 +80,8 @@
     "USERNAME": "__DATABASE_USERNAME__",
     "PASSWORD": "__DATABASE_PASSWORD__",
     "TIMEOUT": __DATABASE_TIMEOUT__,
-    "PID_DIR": "__DATABASE_PID_DIR__"
+    "PID_DIR": "__DATABASE_PID_DIR__",
+    "POOL_SIZE": __DATABASE_POOL_SIZE__
   },
   "SYSLOG": {
     "ENABLED": __SYSLOG_ENABLED__,

docker/backend/start.sh

@@ -4,6 +4,7 @@
 __MEMPOOL_NETWORK__=${MEMPOOL_NETWORK:=mainnet}
 __MEMPOOL_BACKEND__=${MEMPOOL_BACKEND:=electrum}
 __MEMPOOL_ENABLED__=${MEMPOOL_ENABLED:=true}
+__MEMPOOL_OFFICIAL__=${MEMPOOL_OFFICIAL:=false}
 __MEMPOOL_HTTP_PORT__=${BACKEND_HTTP_PORT:=8999}
 __MEMPOOL_SPAWN_CLUSTER_PROCS__=${MEMPOOL_SPAWN_CLUSTER_PROCS:=0}
 __MEMPOOL_API_URL_PREFIX__=${MEMPOOL_API_URL_PREFIX:=/api/v1/}
@@ -81,6 +82,7 @@ __DATABASE_USERNAME__=${DATABASE_USERNAME:=mempool}
 __DATABASE_PASSWORD__=${DATABASE_PASSWORD:=mempool}
 __DATABASE_TIMEOUT__=${DATABASE_TIMEOUT:=180000}
 __DATABASE_PID_DIR__=${DATABASE_PID_DIR:=""}
+__DATABASE_POOL_SIZE__=${DATABASE_POOL_SIZE:=100}
 
 # SYSLOG
 __SYSLOG_ENABLED__=${SYSLOG_ENABLED:=false}
@@ -158,6 +160,7 @@ mkdir -p "${__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_ENABLED__!${__MEMPOOL_ENABLED__}!g" mempool-config.json
+sed -i "s!__MEMPOOL_OFFICIAL__!${__MEMPOOL_OFFICIAL__}!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__!${__MEMPOOL_API_URL_PREFIX__}!g" mempool-config.json
@@ -230,6 +233,7 @@ sed -i "s!__DATABASE_USERNAME__!${__DATABASE_USERNAME__}!g" mempool-config.json
 sed -i "s!__DATABASE_PASSWORD__!${__DATABASE_PASSWORD__}!g" mempool-config.json
 sed -i "s!__DATABASE_TIMEOUT__!${__DATABASE_TIMEOUT__}!g" mempool-config.json
 sed -i "s!__DATABASE_PID_DIR__!${__DATABASE_PID_DIR__}!g" mempool-config.json
+sed -i "s!__DATABASE_POOL_SIZE__!${__DATABASE_POOL_SIZE__}!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

docker/init.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #backend
-cp ./docker/backend/* ./backend/
+cp -r ./docker/backend/* ./backend/
 
 #geoip-data
 mkdir -p ./backend/GeoIP/
@@ -13,8 +13,8 @@ localhostIP="127.0.0.1"
 cp ./docker/frontend/* ./frontend
 cp ./nginx.conf ./frontend/
 cp ./nginx-mempool.conf ./frontend/
-sed -i "s/${localhostIP}:80/0.0.0.0:__MEMPOOL_FRONTEND_HTTP_PORT__/g" ./frontend/nginx.conf
+sed -i"" -e "s/${localhostIP}:80/0.0.0.0:__MEMPOOL_FRONTEND_HTTP_PORT__/g" ./frontend/nginx.conf
-sed -i "s/${localhostIP}/0.0.0.0/g" ./frontend/nginx.conf
+sed -i"" -e "s/${localhostIP}/0.0.0.0/g" ./frontend/nginx.conf
-sed -i "s/user nobody;//g" ./frontend/nginx.conf
+sed -i"" -e "s/user nobody;//g" ./frontend/nginx.conf
-sed -i "s!/etc/nginx/nginx-mempool.conf!/etc/nginx/conf.d/nginx-mempool.conf!g" ./frontend/nginx.conf
+sed -i"" -e "s!/etc/nginx/nginx-mempool.conf!/etc/nginx/conf.d/nginx-mempool.conf!g" ./frontend/nginx.conf
-sed -i "s/${localhostIP}:8999/__MEMPOOL_BACKEND_MAINNET_HTTP_HOST__:__MEMPOOL_BACKEND_MAINNET_HTTP_PORT__/g" ./frontend/nginx-mempool.conf
+sed -i"" -e "s/${localhostIP}:8999/__MEMPOOL_BACKEND_MAINNET_HTTP_HOST__:__MEMPOOL_BACKEND_MAINNET_HTTP_PORT__/g" ./frontend/nginx-mempool.conf

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

@@ -6,6 +6,7 @@ import { EightBlocksComponent } from './components/eight-blocks/eight-blocks.com
 import { MempoolBlockViewComponent } from './components/mempool-block-view/mempool-block-view.component';
 import { ClockComponent } from './components/clock/clock.component';
 import { StatusViewComponent } from './components/status-view/status-view.component';
+import { AddressGroupComponent } from './components/address-group/address-group.component';
 
 const browserWindow = window || {};
 // @ts-ignore
@@ -26,6 +27,14 @@ let routes: Routes = [
         loadChildren: () => import('./master-page.module').then(m => m.MasterPageModule),
         data: { preload: true },
       },
+      {
+        path: 'wallet',
+        children: [],
+        component: AddressGroupComponent,
+        data: {
+          networkSpecific: true,
+        }
+      },
       {
         path: 'status',
         data: { networks: ['bitcoin', 'liquid'] },
@@ -61,6 +70,14 @@ let routes: Routes = [
         loadChildren: () => import('./master-page.module').then(m => m.MasterPageModule),
         data: { preload: true },
       },
+      {
+        path: 'wallet',
+        children: [],
+        component: AddressGroupComponent,
+        data: {
+          networkSpecific: true,
+        }
+      },
       {
         path: 'status',
         data: { networks: ['bitcoin', 'liquid'] },
@@ -88,6 +105,14 @@ let routes: Routes = [
     loadChildren: () => import('./master-page.module').then(m => m.MasterPageModule),
     data: { preload: true },
   },
+  {
+    path: 'wallet',
+    children: [],
+    component: AddressGroupComponent,
+    data: {
+      networkSpecific: true,
+    }
+  },
   {
     path: 'preview',
     children: [
@@ -168,6 +193,14 @@ if (browserWindowEnv && browserWindowEnv.BASE_MODULE === 'liquid') {
           loadChildren: () => import ('./liquid/liquid-master-page.module').then(m => m.LiquidMasterPageModule),
           data: { preload: true },
         },
+        {
+          path: 'wallet',
+          children: [],
+          component: AddressGroupComponent,
+          data: {
+            networkSpecific: true,
+          }
+        },
         {
           path: 'status',
           data: { networks: ['bitcoin', 'liquid'] },
@@ -195,6 +228,14 @@ if (browserWindowEnv && browserWindowEnv.BASE_MODULE === 'liquid') {
       loadChildren: () => import ('./liquid/liquid-master-page.module').then(m => m.LiquidMasterPageModule),
       data: { preload: true },
     },
+    {
+      path: 'wallet',
+      children: [],
+      component: AddressGroupComponent,
+      data: {
+        networkSpecific: true,
+      }
+    },
     {
       path: 'preview',
       children: [

frontend/src/app/components/address-group/address-group.component.html

@@ -0,0 +1,24 @@
+<div class="frame {{ screenSize }}" [class.liquid-address]="network === 'liquid' || network === 'liquidtestnet'">
+  <div class="heading">
+    <app-svg-images name="officialMempoolSpace" style="width: 144px; height: 36px" width="500" height="126" viewBox="0 0 500 126"></app-svg-images>
+    <h3 i18n="addresses.balance">Balances</h3>
+    <div class="spacer"></div>
+  </div>
+  <table class="table table-borderless table-striped table-fixed">
+    <tr>
+      <th class="address" i18n="addresses.total">Total</th>
+      <th class="btc"><app-amount [satoshis]="balance" [digitsInfo]="digitsInfo" [noFiat]="true"></app-amount></th>
+      <th class="fiat"><app-fiat [value]="balance"></app-fiat></th>
+    </tr>
+    <tr *ngFor="let address of page">
+      <td class="address">
+        <app-truncate [text]="address" [lastChars]="8" [link]="['/address/' | relativeUrl, address]" [external]="true"></app-truncate>
+      </td>
+      <td class="btc"><app-amount [satoshis]="addresses[address]" [digitsInfo]="digitsInfo" [noFiat]="true"></app-amount></td>
+      <td class="fiat"><app-fiat [value]="addresses[address]"></app-fiat></td>
+    </tr>
+  </table>
+  <div *ngIf="addressStrings.length > itemsPerPage" class="pagination">
+    <ngb-pagination class="pagination-container float-right" [collectionSize]="addressStrings.length" [rotate]="true" [pageSize]="itemsPerPage" [(page)]="pageIndex" (pageChange)="pageChange(pageIndex)" [boundaryLinks]="false" [ellipses]="false"></ngb-pagination>
+  </div>
+</div>

frontend/src/app/components/address-group/address-group.component.scss

@@ -0,0 +1,101 @@
+.frame {
+  position: relative;
+  background: #24273e;
+  padding: 0.5rem;
+  height: calc(100% + 60px);
+}
+
+.heading {
+  display: flex;
+  flex-direction: row;
+  justify-content: space-between;
+  align-items: start;
+
+  & > * {
+    flex-basis: 0;
+    flex-grow: 1;
+  }
+
+  h3 {
+    text-align: center;
+    margin: 0 1em;
+  }
+}
+
+.pagination {
+  position: absolute;
+  bottom: 0.5rem;
+  right: 0.5rem;
+}
+
+.table {
+  margin-top: 0.5em;
+
+  td, th {
+    padding: 0.15rem 0.5rem;
+
+    &.address {
+      width: auto;
+    }
+    &.btc {
+      width: 140px;
+      text-align: right;
+    }
+    &.fiat {
+      width: 142px;
+      text-align: right;
+    }
+  }
+
+  tr {
+    border-collapse: collapse;
+
+    &:first-child {
+      border-bottom: solid 1px white;
+      td, th {
+        padding-bottom: 0.3rem;
+      }
+    }
+    &:nth-child(2) {
+      td, th {
+        padding-top: 0.3rem;
+      }
+    }
+    &:nth-child(even) {
+      background: #181b2d;
+    }
+  }
+
+  @media (min-width: 528px) {
+    td, th {
+      &.btc {
+        width: 160px;
+      }
+      &.fiat {
+        width: 140px;
+      }
+    }
+  }
+
+  @media (min-width: 576px) {
+    td, th {
+      &.btc {
+        width: 170px;
+      }
+      &.fiat {
+        width: 140px;
+      }
+    }
+  }
+
+  @media (min-width: 992px) {
+    td, th {
+      &.btc {
+        width: 210px;
+      }
+      &.fiat {
+        width: 140px;
+      }
+    }
+  }
+}

frontend/src/app/components/address-group/address-group.component.ts

@@ -0,0 +1,212 @@
+import { Component, OnInit, OnDestroy, ChangeDetectorRef, HostListener } from '@angular/core';
+import { ActivatedRoute, ParamMap } from '@angular/router';
+import { ElectrsApiService } from '../../services/electrs-api.service';
+import { switchMap, catchError } from 'rxjs/operators';
+import { Address, Transaction } from '../../interfaces/electrs.interface';
+import { WebsocketService } from '../../services/websocket.service';
+import { StateService } from '../../services/state.service';
+import { AudioService } from '../../services/audio.service';
+import { ApiService } from '../../services/api.service';
+import { of, Subscription, forkJoin } from 'rxjs';
+import { SeoService } from '../../services/seo.service';
+import { AddressInformation } from '../../interfaces/node-api.interface';
+
+@Component({
+  selector: 'app-address-group',
+  templateUrl: './address-group.component.html',
+  styleUrls: ['./address-group.component.scss']
+})
+export class AddressGroupComponent implements OnInit, OnDestroy {
+  network = '';
+
+  balance = 0;
+  confirmed = 0;
+  mempool = 0;
+  addresses: { [address: string]: number | null };
+  addressStrings: string[] = [];
+  addressInfo: { [address: string]: AddressInformation | null };
+  seenTxs: { [txid: string ]: boolean } = {};
+  isLoadingAddress = true;
+  error: any;
+  mainSubscription: Subscription;
+  wsSubscription: Subscription;
+
+  page: string[] = [];
+  pageIndex: number = 1;
+  itemsPerPage: number = 10;
+
+  screenSize: 'lg' | 'md' | 'sm' = 'lg';
+  digitsInfo: string = '1.8-8';
+
+  constructor(
+    private route: ActivatedRoute,
+    private electrsApiService: ElectrsApiService,
+    private websocketService: WebsocketService,
+    private stateService: StateService,
+    private audioService: AudioService,
+    private apiService: ApiService,
+    private seoService: SeoService,
+    private cd: ChangeDetectorRef,
+  ) { }
+
+  ngOnInit(): void {
+    this.onResize();
+    this.stateService.networkChanged$.subscribe((network) => this.network = network);
+    this.websocketService.want(['blocks']);
+
+    this.mainSubscription = this.route.queryParamMap
+      .pipe(
+        switchMap((params: ParamMap) => {
+          this.error = undefined;
+          this.isLoadingAddress = true;
+          this.addresses = {};
+          this.addressInfo = {};
+          this.balance = 0;
+          
+          this.addressStrings = params.get('addresses').split(',').map(address => {
+            if (/^[A-Z]{2,5}1[AC-HJ-NP-Z02-9]{8,100}|04[a-fA-F0-9]{128}|(02|03)[a-fA-F0-9]{64}$/.test(address)) {
+              return address.toLowerCase();
+            } else {
+              return address;
+            }
+          });
+
+          return forkJoin(this.addressStrings.map(address => {
+            const getLiquidInfo = ((this.stateService.network === 'liquid' || this.stateService.network === 'liquidtestnet') && /^([a-zA-HJ-NP-Z1-9]{26,35}|[a-z]{2,5}1[ac-hj-np-z02-9]{8,100}|[a-km-zA-HJ-NP-Z1-9]{80})$/.test(address));
+            return forkJoin([
+              of(address),
+              this.electrsApiService.getAddress$(address),
+              (getLiquidInfo ? this.apiService.validateAddress$(address) : of(null)),
+            ]);
+          }));
+        }),
+        catchError(e => {
+          this.error = e;
+          return of([]);
+        })
+      ).subscribe((addresses) => {
+        for (const addressData of addresses) {
+          const address = addressData[0];
+          const addressBalance = addressData[1] as Address;
+          if (addressBalance) {
+            this.addresses[address] = addressBalance.chain_stats.funded_txo_sum
+              + addressBalance.mempool_stats.funded_txo_sum
+              - addressBalance.chain_stats.spent_txo_sum
+              - addressBalance.mempool_stats.spent_txo_sum;
+            this.balance += this.addresses[address];
+            this.confirmed += (addressBalance.chain_stats.funded_txo_sum - addressBalance.chain_stats.spent_txo_sum);
+          }
+          this.addressInfo[address] = addressData[2] ? addressData[2] as AddressInformation : null;
+        }
+        this.websocketService.startTrackAddresses(this.addressStrings);
+        this.isLoadingAddress = false;
+        this.pageChange(this.pageIndex);
+      });
+
+    this.wsSubscription = this.stateService.multiAddressTransactions$.subscribe(update => {
+      for (const address of Object.keys(update)) {
+        for (const tx of update[address].mempool) {
+          this.addTransaction(tx, false, false);
+        }
+        for (const tx of update[address].confirmed) {
+          this.addTransaction(tx, true, false);
+        }
+        for (const tx of update[address].removed) {
+          this.removeTransaction(tx, tx.status.confirmed);
+        }
+      }
+    });
+  }
+
+  pageChange(index): void {
+    this.page = this.addressStrings.slice((index - 1) * this.itemsPerPage, index * this.itemsPerPage);
+  }
+
+  addTransaction(transaction: Transaction, confirmed = false, playSound: boolean = true): boolean {
+    if (this.seenTxs[transaction.txid]) {
+      this.removeTransaction(transaction, false);
+    }
+    this.seenTxs[transaction.txid] = true;
+
+    let balance = 0;
+    transaction.vin.forEach((vin) => {
+      if (this.addressStrings.includes(vin?.prevout?.scriptpubkey_address)) {
+        this.addresses[vin?.prevout?.scriptpubkey_address] -= vin.prevout.value;
+        balance -= vin.prevout.value;
+        this.balance -= vin.prevout.value;
+        if (confirmed) {
+          this.confirmed -= vin.prevout.value;
+        }
+      }
+    });
+    transaction.vout.forEach((vout) => {
+      if (this.addressStrings.includes(vout?.scriptpubkey_address)) {
+        this.addresses[vout?.scriptpubkey_address] += vout.value;
+        balance += vout.value;
+        this.balance += vout.value;
+        if (confirmed) {
+          this.confirmed += vout.value;
+        }
+      }
+    });
+
+    if (playSound) {
+      if (balance > 0) {
+        this.audioService.playSound('cha-ching');
+      } else {
+        this.audioService.playSound('chime');
+      }
+    }
+
+    return true;
+  }
+
+  removeTransaction(transaction: Transaction, confirmed = false): boolean {
+    transaction.vin.forEach((vin) => {
+      if (this.addressStrings.includes(vin?.prevout?.scriptpubkey_address)) {
+        this.addresses[vin?.prevout?.scriptpubkey_address] += vin.prevout.value;
+        this.balance += vin.prevout.value;
+        if (confirmed) {
+          this.confirmed += vin.prevout.value;
+        }
+      }
+    });
+    transaction.vout.forEach((vout) => {
+      if (this.addressStrings.includes(vout?.scriptpubkey_address)) {
+        this.addresses[vout?.scriptpubkey_address] -= vout.value;
+        this.balance -= vout.value;
+        if (confirmed) {
+          this.confirmed -= vout.value;
+        }
+      }
+    });
+
+    return true;
+  }
+
+  @HostListener('window:resize', ['$event'])
+  onResize(): void {
+    if (window.innerWidth >= 992) {
+      this.screenSize = 'lg';
+      this.digitsInfo = '1.8-8';
+    } else if (window.innerWidth >= 528) {
+      this.screenSize = 'md';
+      this.digitsInfo = '1.4-4';
+    } else {
+      this.screenSize = 'sm';
+      this.digitsInfo = '1.2-2';
+    }
+    const newItemsPerPage = Math.floor((window.innerHeight - 150) / 30);
+    if (newItemsPerPage !== this.itemsPerPage) {
+      this.itemsPerPage = newItemsPerPage;
+      this.pageIndex = 1;
+      this.pageChange(this.pageIndex);
+    }
+  }
+
+  ngOnDestroy(): void {
+    this.mainSubscription.unsubscribe();
+    this.wsSubscription.unsubscribe();
+    this.websocketService.stopTrackingAddresses();
+  }
+}

frontend/src/app/components/blockchain-blocks/blockchain-blocks.component.html

@@ -56,7 +56,7 @@
               <app-time kind="since" [time]="block.timestamp" [fastRender]="true" [precision]="1" minUnit="minute"></app-time></div>
           </ng-container>
         </div>
-        <div class="animated" [class]="showMiningInfo ? 'show' : 'hide'" *ngIf="block.extras?.pool != undefined">
+        <div class="animated" [class]="markHeight === block.height ? 'hide' : 'show'" *ngIf="block.extras?.pool != undefined">
           <a [attr.data-cy]="'bitcoin-block-' + offset + '-index-' + i + '-pool'" class="badge badge-primary"
             [routerLink]="[('/mining/pool/' + block.extras.pool.slug) | relativeUrl]">
             {{ block.extras.pool.name}}</a>

frontend/src/app/components/blockchain-blocks/blockchain-blocks.component.scss

@@ -166,7 +166,7 @@
   opacity: 1;
 }
 .hide {
-  opacity: 0;
+  opacity: 0.4;
   pointer-events : none;
 }
 

frontend/src/app/components/footer/footer.component.html

@@ -1,4 +1,4 @@
-<footer class="footer">
+<footer class="footer" [class.inline-footer]="inline">
   <div class="container-xl">
     <div class="row text-center" *ngIf="mempoolInfoData$ | async as mempoolInfoData">
       <div class="col d-none d-sm-block">

frontend/src/app/components/footer/footer.component.scss

@@ -6,6 +6,12 @@
   background-color: #1d1f31;
   box-shadow: 15px 15px 15px 15px #000;
   z-index: 10;
+
+  &.inline-footer {
+    position: relative;
+    bottom: unset;
+    top: -44px;
+  }
 }
 
 .sub-text {

frontend/src/app/components/footer/footer.component.ts

@@ -1,4 +1,4 @@
-import { Component, OnInit, ChangeDetectionStrategy } from '@angular/core';
+import { Component, OnInit, ChangeDetectionStrategy, Input } from '@angular/core';
 import { StateService } from '../../services/state.service';
 import { Observable, combineLatest } from 'rxjs';
 import { map } from 'rxjs/operators';
@@ -23,6 +23,8 @@ interface MempoolInfoData {
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
 export class FooterComponent implements OnInit {
+  @Input() inline = false;
+
   mempoolBlocksData$: Observable<MempoolBlocksData>;
   mempoolInfoData$: Observable<MempoolInfoData>;
   vBytesPerSecondLimit = 1667;

frontend/src/app/components/mempool-blocks/mempool-blocks.component.html

@@ -1,7 +1,7 @@
 <ng-container *ngIf="(loadingBlocks$ | async) === false; else loadingBlocks" [class.minimal]="minimal">
   <div class="mempool-blocks-container" [class.time-ltr]="timeLtr" [style.--block-size]="blockWidth+'px'" *ngIf="(difficultyAdjustments$ | async) as da;">
-    <div class="flashing">
+    <div class="flashing" *ngIf="(mempoolBlocks$ | async) as mempoolBlocks">
-      <ng-template ngFor let-projectedBlock [ngForOf]="mempoolBlocks$ | async" let-i="index" [ngForTrackBy]="trackByFn">
+      <ng-template ngFor let-projectedBlock [ngForOf]="mempoolBlocks" let-i="index" [ngForTrackBy]="trackByFn">
         <div
           *ngIf="minimal && spotlight > 0 && spotlight === i + 1"
           class="spotlight-bottom"

frontend/src/app/components/mempool-blocks/mempool-blocks.component.ts

@@ -1,9 +1,9 @@
 import { Component, OnInit, OnDestroy, ChangeDetectionStrategy, ChangeDetectorRef, HostListener, Input, OnChanges, SimpleChanges, Output, EventEmitter } from '@angular/core';
-import { Subscription, Observable, fromEvent, merge, of, combineLatest } from 'rxjs';
+import { Subscription, Observable, of, combineLatest } from 'rxjs';
 import { MempoolBlock } from '../../interfaces/websocket.interface';
 import { StateService } from '../../services/state.service';
 import { Router } from '@angular/router';
-import { take, map, switchMap, tap } from 'rxjs/operators';
+import { map, switchMap, tap } from 'rxjs/operators';
 import { feeLevels, mempoolFeeColors } from '../../app.constants';
 import { specialBlocks } from '../../app.constants';
 import { RelativeUrlPipe } from '../../shared/pipes/relative-url/relative-url.pipe';
@@ -86,7 +86,7 @@ export class MempoolBlocksComponent implements OnInit, OnChanges, OnDestroy {
     public stateService: StateService,
     private cd: ChangeDetectorRef,
     private relativeUrlPipe: RelativeUrlPipe,
-    private location: Location
+    private location: Location,
   ) { }
 
   enabledMiningInfoIfNeeded(url) {
@@ -129,50 +129,44 @@ export class MempoolBlocksComponent implements OnInit, OnChanges, OnDestroy {
       })
     );
 
-    this.mempoolBlocks$ = merge(
+    this.mempoolBlocks$ = combineLatest([
-      of(true),
+      this.stateService.blocks$.pipe(map((blocks) => blocks[0])),
-      fromEvent(window, 'resize')
+      this.stateService.mempoolBlocks$
-    )
+        .pipe(
-    .pipe(
+          map((mempoolBlocks) => {
-      switchMap(() => combineLatest([
+            if (!mempoolBlocks.length) {
-        this.stateService.blocks$.pipe(map((blocks) => blocks[0])),
+              return [{ index: 0, blockSize: 0, blockVSize: 0, feeRange: [0, 0], medianFee: 0, nTx: 0, totalFees: 0 }];
-        this.stateService.mempoolBlocks$
+            }
-          .pipe(
+            return mempoolBlocks;
-            map((mempoolBlocks) => {
+          }),
-              if (!mempoolBlocks.length) {
+        )
-                return [{ index: 0, blockSize: 0, blockVSize: 0, feeRange: [0, 0], medianFee: 0, nTx: 0, totalFees: 0 }];
+    ]).pipe(
-              }
+      map(([lastBlock, mempoolBlocks]) => {
-              return mempoolBlocks;
+        mempoolBlocks.forEach((block, i) => {
-            }),
+          block.index = this.blockIndex + i;
-          )
+          block.height = lastBlock.height + i + 1;
-      ])),
+          block.blink = specialBlocks[block.height]?.networks.includes(this.stateService.network || 'mainnet') ? true : false;
-        map(([lastBlock, mempoolBlocks]) => {
+        });
-          mempoolBlocks.forEach((block, i) => {
-            block.index = this.blockIndex + i;
-            block.height = lastBlock.height + i + 1;
-            block.blink = specialBlocks[block.height]?.networks.includes(this.stateService.network || 'mainnet') ? true : false;
-          });
 
-          const stringifiedBlocks = JSON.stringify(mempoolBlocks);
+        const stringifiedBlocks = JSON.stringify(mempoolBlocks);
-          this.mempoolBlocksFull = JSON.parse(stringifiedBlocks);
+        this.mempoolBlocksFull = JSON.parse(stringifiedBlocks);
-          this.mempoolBlocks = this.reduceMempoolBlocksToFitScreen(JSON.parse(stringifiedBlocks));
+        this.mempoolBlocks = this.reduceMempoolBlocksToFitScreen(JSON.parse(stringifiedBlocks));
 
-          this.now = Date.now();
+        this.now = Date.now();
 
-          this.updateMempoolBlockStyles();
+        this.updateMempoolBlockStyles();
-          this.calculateTransactionPosition();
+        this.calculateTransactionPosition();
- 
+
-          return this.mempoolBlocks;
+        return this.mempoolBlocks;
-        }),
+      }),
-        tap(() => {
+      tap(() => {
-          const width = this.containerOffset + this.mempoolBlocks.length * this.blockOffset;
+        const width = this.containerOffset + this.mempoolBlocks.length * this.blockOffset;
-          if (this.mempoolWidth !== width) {
+        if (this.mempoolWidth !== width) {
-            this.mempoolWidth = width;
+          this.mempoolWidth = width;
-            this.widthChange.emit(this.mempoolWidth);
+          this.widthChange.emit(this.mempoolWidth);
-            this.cd.markForCheck();
+        }
-          }
+      })
-        })
+    );
-      );
 
     this.difficultyAdjustments$ = this.stateService.difficultyAdjustment$
       .pipe(

frontend/src/app/components/server-health/server-health.component.html

@@ -0,0 +1,36 @@
+<div class="tomahawk">
+  <div class="links">
+    <span>Monitoring</span>
+    <a [routerLink]='"/nodes"'>Nodes</a>
+  </div>
+
+  <app-start [showLoadingIndicator]="true"></app-start>
+  <app-footer [inline]="true"></app-footer>
+
+  <ng-container *ngIf="(hosts$ | async) as hosts">
+    <div class="status-panel">
+      <table class="status-table table table-fixed table-borderless table-striped" *ngIf="(tip$ | async) as tip">
+        <tbody>
+          <tr>
+            <th class="rank"></th>
+            <th class="flag"></th>
+            <th class="host">Host</th>
+            <th class="updated">Last checked</th>
+            <th class="rtt only-small">RTT</th>
+            <th class="rtt only-large">RTT</th>
+            <th class="height">Height</th>
+          </tr>
+          <tr *ngFor="let host of hosts; let i = index; trackBy: trackByFn">
+            <td class="rank">{{ i + 1 }}</td>
+            <td class="flag">{{ host.active ? '⭐️' : host.flag }}</td>
+            <td class="host">{{ host.link }}</td>
+            <td class="updated">{{ getLastUpdateSeconds(host) }}</td>
+            <td class="rtt only-small">{{ (host.rtt / 1000) | number : '1.1-1' }} {{ host.rtt == null ? '' : 's'}} {{ !host.checked ? '⏳' : (host.unreachable ? '🔥' : '✅') }}</td>
+            <td class="rtt only-large">{{ host.rtt | number : '1.0-0' }} {{ host.rtt == null ? '' : 'ms'}} {{ !host.checked ? '⏳' : (host.unreachable ? '🔥' : '✅') }}</td>
+            <td class="height">{{ host.latestHeight }} {{ !host.checked ? '⏳' : (host.outOfSync ? '🚫' : (host.latestHeight && host.latestHeight < tip ? '🟧' : '✅')) }}</td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+  </ng-container>
+</div>

frontend/src/app/components/server-health/server-health.component.scss

@@ -0,0 +1,75 @@
+.tomahawk {
+  .links {
+    text-align: right;
+    margin-inline-end: 1em;
+
+    a, span {
+      margin-left: 1em;
+    }
+  }
+
+  .status-panel {
+    max-width: 720px;
+    margin: auto;
+    padding: 1em;
+    background: #24273e;
+  }
+
+  .status-table {
+    width: 100%;
+
+    td, th {
+      padding: 0.25em;
+
+      &.rank, &.flag {
+        width: 28px;
+        text-align: right;
+      }
+      &.updated {
+        display: none;
+        width: 130px;
+        text-align: right;
+        white-space: pre-wrap;
+      }
+      &.rtt, &.height {
+        width: 92px;
+        text-align: right;
+      }
+      &.only-small {
+        display: table-cell;
+        &.rtt {
+          width: 60px;
+        }
+      }
+      &.only-large {
+        display: none;
+      }
+      &.height {
+        padding-right: 0.5em;
+      }
+      &.host {
+        width: auto;
+        overflow: hidden;
+        text-overflow: ellipsis;
+      }
+
+      @media (min-width: 576px) {
+        &.rank, &.flag {
+          width: 32px;
+        }
+        &.updated {
+          display: table-cell;
+        }
+        &.rtt, &.height {
+          width: 96px;
+        }
+        &.only-small {
+          display: none;
+        }
+        &.only-large {
+          display: table-cell;
+        }
+      }
+    }
+  }
+}

frontend/src/app/components/server-health/server-health.component.ts

@@ -0,0 +1,84 @@
+import { Component, OnInit, ChangeDetectionStrategy, SecurityContext, ChangeDetectorRef } from '@angular/core';
+import { WebsocketService } from '../../services/websocket.service';
+import { Observable, Subject, map } from 'rxjs';
+import { StateService } from '../../services/state.service';
+import { HealthCheckHost } from '../../interfaces/websocket.interface';
+import { DomSanitizer } from '@angular/platform-browser';
+
+@Component({
+  selector: 'app-server-health',
+  templateUrl: './server-health.component.html',
+  styleUrls: ['./server-health.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class ServerHealthComponent implements OnInit {
+  hosts$: Observable<HealthCheckHost[]>;
+  tip$: Subject<number>;
+  interval: number;
+  now: number = Date.now();
+
+  constructor(
+    private websocketService: WebsocketService,
+    private stateService: StateService,
+    private cd: ChangeDetectorRef,
+    public sanitizer: DomSanitizer,
+  ) {}
+
+  ngOnInit(): void {
+    this.hosts$ = this.stateService.serverHealth$.pipe(
+      map((hosts) => {
+        const subpath = window.location.pathname.slice(0, -11);
+        for (const host of hosts) {
+          let statusUrl = '';
+          let linkHost = '';
+          if (host.socket) {
+            statusUrl = 'https://' + window.location.hostname + subpath + '/status';
+            linkHost = window.location.hostname + subpath;
+          } else {
+            const hostUrl = new URL(host.host);
+            statusUrl = 'https://' + hostUrl.hostname + subpath + '/status';
+            linkHost = hostUrl.hostname + subpath;
+          }
+          host.statusPage = this.sanitizer.bypassSecurityTrustResourceUrl(this.sanitizer.sanitize(SecurityContext.URL, statusUrl));
+          host.link = linkHost;
+          host.flag = this.parseFlag(host.host);
+        }
+        return hosts;
+      })
+    );
+    this.tip$ = this.stateService.chainTip$;
+    this.websocketService.want(['mempool-blocks', 'stats', 'blocks', 'tomahawk']);
+
+    this.interval = window.setInterval(() => {
+      this.now = Date.now();
+      this.cd.markForCheck();
+    }, 1000);
+  }
+
+  trackByFn(index: number, host: HealthCheckHost): string {
+    return host.host;
+  }
+
+  getLastUpdateSeconds(host: HealthCheckHost): string {
+    if (host.lastChecked) {
+      const seconds = Math.ceil((this.now - host.lastChecked) / 1000);
+      return `${seconds} second${seconds > 1 ? 's' : '  '} ago`;
+    } else {
+      return '~';
+    }
+  }
+
+  private parseFlag(host: string): string {
+    if (host.includes('.fra.')) {
+      return '🇩🇪';
+    } else if (host.includes('.tk7.')) {
+      return '🇯🇵';
+    } else if (host.includes('.fmt.')) {
+      return '🇺🇸';
+    } else if (host.includes('.va1.')) {
+      return '🇺🇸';
+    } else {
+      return '';
+    }
+  }
+}

frontend/src/app/components/server-health/server-status.component.html

@@ -0,0 +1,16 @@
+<div class="tomahawk">
+  <div class="links">
+    <a [routerLink]='"/monitoring"'>Monitoring</a>
+    <span>Nodes</span>
+  </div>
+
+  <app-start [showLoadingIndicator]="true"></app-start>
+  <app-footer [inline]="true"></app-footer>
+
+  <ng-container *ngFor="let host of hosts; trackBy: trackByFn">
+    <h5 [id]="host.host" class="hostLink">
+      <a [href]="'https://' + host.link">{{ host.link }}</a>
+    </h5>
+    <iframe class="mempoolStatus" [src]="host.statusPage"></iframe>
+  </ng-container>
+</div>

frontend/src/app/components/server-health/server-status.component.scss

@@ -0,0 +1,22 @@
+.tomahawk {
+  .links {
+    text-align: right;
+    margin-inline-end: 1em;
+
+    a, span {
+      margin-left: 1em;
+    }
+  }
+
+  .mempoolStatus {
+    width: 100%;
+    height: 270px;
+    border: none;
+  }
+
+  .hostLink {
+    text-align: center;
+    margin: auto;
+    margin-top: 1em;
+  }
+}

frontend/src/app/components/server-health/server-status.component.ts

@@ -0,0 +1,80 @@
+import { Component, OnInit, ChangeDetectionStrategy, SecurityContext, OnDestroy, ChangeDetectorRef } from '@angular/core';
+import { WebsocketService } from '../../services/websocket.service';
+import { Observable, Subject, Subscription, map, tap } from 'rxjs';
+import { StateService } from '../../services/state.service';
+import { HealthCheckHost } from '../../interfaces/websocket.interface';
+import { DomSanitizer } from '@angular/platform-browser';
+
+@Component({
+  selector: 'app-server-status',
+  templateUrl: './server-status.component.html',
+  styleUrls: ['./server-status.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class ServerStatusComponent implements OnInit, OnDestroy {
+  tip$: Subject<number>;
+  hosts: HealthCheckHost[] = [];
+  hostSubscription: Subscription;
+
+  constructor(
+    private websocketService: WebsocketService,
+    private stateService: StateService,
+    private cd: ChangeDetectorRef,
+    public sanitizer: DomSanitizer,
+  ) {}
+
+  ngOnInit(): void {
+    this.hostSubscription = this.stateService.serverHealth$.pipe(
+      map((hosts) => {
+        const subpath = window.location.pathname.slice(0, -6);
+        for (const host of hosts) {
+          let statusUrl = '';
+          let linkHost = '';
+          if (host.socket) {
+            statusUrl = 'https://' + window.location.hostname + subpath + '/status';
+            linkHost = window.location.hostname + subpath;
+          } else {
+            const hostUrl = new URL(host.host);
+            statusUrl = 'https://' + hostUrl.hostname + subpath + '/status';
+            linkHost = hostUrl.hostname + subpath;
+          }
+          host.statusPage = this.sanitizer.bypassSecurityTrustResourceUrl(this.sanitizer.sanitize(SecurityContext.URL, statusUrl));
+          host.link = linkHost;
+        }
+        return hosts;
+      }),
+      tap((hosts) => {
+        if (this.hosts.length !== hosts.length) {
+          this.hosts = hosts.sort((a,b) => {
+            const aParts = (a.host?.split('.') || []).reverse();
+            const bParts = (b.host?.split('.') || []).reverse();
+            let i = 0;
+            while (i < Math.max(aParts.length, bParts.length)) {
+              if (aParts[i] && !bParts[i]) {
+                return 1;
+              } else if (bParts[i] && !aParts[i]) {
+                return -1;
+              } else if (aParts[i] !== bParts[i]) {
+                return aParts[i].localeCompare(bParts[i]);
+              }
+              i++;
+            }
+            return 0;
+          });
+        }
+        this.cd.markForCheck();
+      })
+    ).subscribe();
+    this.tip$ = this.stateService.chainTip$;
+    this.websocketService.want(['mempool-blocks', 'stats', 'blocks', 'tomahawk']);
+  }
+
+  trackByFn(index: number, host: HealthCheckHost): string {
+    return host.host;
+  }
+
+  ngOnDestroy(): void {
+    this.hosts = [];
+    this.hostSubscription.unsubscribe();
+  }
+}

frontend/src/app/docs/api-docs/api-docs-nav.component.html

@@ -1,3 +1,7 @@
+<div id="enterprise-cta-desktop">
+  <p>Get higher API limits with Mempool Enterprise®</p>
+  <a class="btn btn-small btn-purple" href="/enterprise">More Info <fa-icon [icon]="['fas', 'angle-right']" [styles]="{'font-size': '12px'}"></fa-icon></a>
+</div>
 <div *ngFor="let item of tabData">
   <p *ngIf="( item.type === 'category' ) && ( item.showConditions.indexOf(network.val) > -1 ) && ( !item.hasOwnProperty('options') || ( item.hasOwnProperty('options') && item.options.hasOwnProperty('officialOnly') && item.options.officialOnly && officialMempoolInstance ))">{{ item.title }}</p>
   <a *ngIf="( item.type !== 'category' ) && ( item.showConditions.indexOf(network.val) > -1 ) && ( !item.hasOwnProperty('options') || ( item.hasOwnProperty('options') && item.options.hasOwnProperty('officialOnly') && item.options.officialOnly && officialMempoolInstance ) || ( item.hasOwnProperty('options') && item.options.hasOwnProperty('auditOnly') && item.options.auditOnly && auditEnabled ) )" [routerLink]="['./']" fragment="{{ item.fragment }}" (click)="navLinkClick($event)">{{ item.title }}</a>

frontend/src/app/docs/api-docs/api-docs-nav.component.scss

@@ -11,3 +11,22 @@ a {
   display: block;
   margin: 5px 0;
 }
+
+#enterprise-cta-desktop {
+  text-align: center;
+  padding: 20px;
+  margin: 20px 20px 20px 0;
+  background-color: #1d1f31;
+  border-radius: 12px;
+}
+
+#enterprise-cta-desktop p {
+  margin: 0 auto 16px auto;
+  color: #fff;
+  font-weight: 400;
+}
+
+#enterprise-cta-desktop a {
+  display: inline-block;
+}
+

frontend/src/app/docs/api-docs/api-docs.component.html

@@ -39,6 +39,14 @@
 
       <div class="doc-content">
 
+        <div id="enterprise-cta-mobile" *ngIf="showMobileEnterpriseUpsell">
+          <p>Get higher API limits with <span class="no-line-break">Mempool Enterprise®</span></p>
+          <div class="button-group">
+            <a class="btn btn-small btn-secondary" (click)="showMobileEnterpriseUpsell = false">No Thanks</a>
+            <a class="btn btn-small btn-purple" href="https://mempool.space/enterprise">More Info <fa-icon [icon]="['fas', 'angle-right']" [styles]="{'font-size': '12px'}"></fa-icon></a>
+          </div>
+        </div>
+
         <p class="doc-welcome-note">Below is a reference for the {{ network.val === '' ? 'Bitcoin' : network.val.charAt(0).toUpperCase() + network.val.slice(1) }} <ng-container i18n="api-docs.title">REST API service</ng-container>.</p>
         <p class="doc-welcome-note api-note" *ngIf="officialMempoolInstance">Note that we enforce rate limits. If you exceed these limits, you will get an HTTP 429 error. If you repeatedly exceed the limits, you may be banned from accessing the service altogether. Consider an <a href="https://mempool.space/enterprise">enterprise sponsorship</a> if you need higher API limits.</p>
 

frontend/src/app/docs/api-docs/api-docs.component.scss

@@ -315,6 +315,41 @@ h3 {
   margin-bottom: 0;
 }
 
+#enterprise-cta-mobile {
+  padding: 20px;
+  background-color: #1d1f31;
+  border-radius: 0.25rem;
+  text-align: center;
+  position: fixed;
+  z-index: 100;
+  left: 30px;
+  width: calc(100% - 60px);
+  bottom: 70px;
+  display: none;
+  border: 3px solid #533180;
+}
+
+#enterprise-cta-mobile p {
+  font-size: 16px;
+  display: inline-block;
+  margin: 0 auto;
+}
+
+#enterprise-cta-mobile a {
+  padding: 4px 8px;
+  font-size: 16px;
+  margin: 15px 5px 5px 5px;
+}
+
+#enterprise-cta-mobile .btn-secondary:hover {
+  background-color: #2d3348;
+  border-color: #2d3348;
+}
+
+#enterprise-cta-mobile .no-line-break {
+  white-space: nowrap;
+}
+
 @media (max-width: 992px) {
 
   h3 {
@@ -373,6 +408,10 @@ h3 {
   #disclaimer table {
     display: none;
   }
+
+  #enterprise-cta-mobile {
+    display: initial;
+  }
 }
 
 @media (min-width: 992px) {

frontend/src/app/docs/api-docs/api-docs.component.ts

@@ -30,6 +30,7 @@ export class ApiDocsComponent implements OnInit, AfterViewInit {
   officialMempoolInstance: boolean;
   auditEnabled: boolean;
   mobileViewport: boolean = false;
+  showMobileEnterpriseUpsell: boolean = true;
   timeLtrSubscription: Subscription;
   timeLtr: boolean = this.stateService.timeLtr.value;
 

frontend/src/app/interfaces/websocket.interface.ts

@@ -1,3 +1,4 @@
+import { SafeResourceUrl } from '@angular/platform-browser';
 import { ILoadingIndicators } from '../services/state.service';
 import { Transaction } from './electrs.interface';
 import { BlockExtended, DifficultyAdjustment, RbfTree } from './node-api.interface';
@@ -120,4 +121,19 @@ export interface Recommendedfees {
   hourFee: number;
   minimumFee: number;
   economyFee: number;
+}
+
+export interface HealthCheckHost {
+  host: string;
+  active: boolean;
+  rtt: number;
+  latestHeight: number;
+  socket: boolean;
+  outOfSync: boolean;
+  unreachable: boolean;
+  checked: boolean;
+  lastChecked: number;
+  link?: string;
+  statusPage?: SafeResourceUrl;
+  flag?: string;
 }

frontend/src/app/liquid/liquid-master-page.module.ts

@@ -19,6 +19,8 @@ import { RecentPegsListComponent } from '../components/liquid-reserves-audit/rec
 import { FederationWalletComponent } from '../components/liquid-reserves-audit/federation-wallet/federation-wallet.component';
 import { FederationUtxosListComponent } from '../components/liquid-reserves-audit/federation-utxos-list/federation-utxos-list.component';
 import { FederationAddressesListComponent } from '../components/liquid-reserves-audit/federation-addresses-list/federation-addresses-list.component';
+import { ServerHealthComponent } from '../components/server-health/server-health.component';
+import { ServerStatusComponent } from '../components/server-health/server-status.component';
 
 const routes: Routes = [
   {
@@ -140,6 +142,19 @@ const routes: Routes = [
   },
 ];
 
+if (window['__env']?.OFFICIAL_MEMPOOL_SPACE) {
+  routes[0].children.push({
+    path: 'nodes',
+    data: { networks: ['bitcoin', 'liquid'] },
+    component: ServerHealthComponent
+  });
+  routes[0].children.push({
+    path: 'network',
+    data: { networks: ['bitcoin', 'liquid'] },
+    component: ServerStatusComponent
+  });
+}
+
 @NgModule({
   imports: [
     RouterModule.forChild(routes)

frontend/src/app/master-page.module.ts

@@ -6,10 +6,13 @@ import { SharedModule } from './shared/shared.module';
 
 import { StartComponent } from './components/start/start.component';
 import { AddressComponent } from './components/address/address.component';
+import { AddressGroupComponent } from './components/address-group/address-group.component';
 import { PushTransactionComponent } from './components/push-transaction/push-transaction.component';
 import { CalculatorComponent } from './components/calculator/calculator.component';
 import { BlocksList } from './components/blocks-list/blocks-list.component';
 import { RbfList } from './components/rbf-list/rbf-list.component';
+import { ServerHealthComponent } from './components/server-health/server-health.component';
+import { ServerStatusComponent } from './components/server-health/server-status.component';
 
 const browserWindow = window || {};
 // @ts-ignore
@@ -96,6 +99,19 @@ const routes: Routes = [
   }
 ];
 
+if (window['__env']?.OFFICIAL_MEMPOOL_SPACE) {
+  routes[0].children.push({
+    path: 'monitoring',
+    data: { networks: ['bitcoin', 'liquid'] },
+    component: ServerHealthComponent
+  });
+  routes[0].children.push({
+    path: 'nodes',
+    data: { networks: ['bitcoin', 'liquid'] },
+    component: ServerStatusComponent
+  });
+}
+
 @NgModule({
   imports: [
     RouterModule.forChild(routes)

frontend/src/app/services/state.service.ts

@@ -1,14 +1,13 @@
 import { Inject, Injectable, PLATFORM_ID, LOCALE_ID } from '@angular/core';
 import { ReplaySubject, BehaviorSubject, Subject, fromEvent, Observable, merge } from 'rxjs';
 import { Transaction } from '../interfaces/electrs.interface';
-import { IBackendInfo, MempoolBlock, MempoolBlockDelta, MempoolInfo, Recommendedfees, ReplacedTransaction, ReplacementInfo, TransactionCompressed, TransactionStripped } from '../interfaces/websocket.interface';
+import { HealthCheckHost, IBackendInfo, MempoolBlock, MempoolBlockDelta, MempoolInfo, Recommendedfees, ReplacedTransaction, ReplacementInfo, TransactionStripped } from '../interfaces/websocket.interface';
 import { BlockExtended, CpfpInfo, DifficultyAdjustment, MempoolPosition, OptimizedMempoolStats, RbfTree } from '../interfaces/node-api.interface';
 import { Router, NavigationStart } from '@angular/router';
 import { isPlatformBrowser } from '@angular/common';
 import { filter, map, scan, shareReplay } from 'rxjs/operators';
 import { StorageService } from './storage.service';
 import { hasTouchScreen } from '../shared/pipes/bytes-pipe/utils';
-import { ApiService } from './api.service';
 import { ActiveFilter } from '../shared/filters.utils';
 
 export interface MarkBlockState {
@@ -119,6 +118,7 @@ export class StateService {
   mempoolTransactions$ = new Subject<Transaction>();
   mempoolTxPosition$ = new Subject<{ txid: string, position: MempoolPosition, cpfp: CpfpInfo | null}>();
   mempoolRemovedTransactions$ = new Subject<Transaction>();
+  multiAddressTransactions$ = new Subject<{ [address: string]: { mempool: Transaction[], confirmed: Transaction[], removed: Transaction[] }}>();
   blockTransactions$ = new Subject<Transaction>();
   isLoadingWebSocket$ = new ReplaySubject<boolean>(1);
   isLoadingMempool$ = new BehaviorSubject<boolean>(true);
@@ -129,6 +129,7 @@ export class StateService {
   loadingIndicators$ = new ReplaySubject<ILoadingIndicators>(1);
   recommendedFees$ = new ReplaySubject<Recommendedfees>(1);
   chainTip$ = new ReplaySubject<number>(-1);
+  serverHealth$ = new Subject<HealthCheckHost[]>();
 
   live2Chart$ = new Subject<OptimizedMempoolStats>();
 

frontend/src/app/services/websocket.service.ts

@@ -32,6 +32,7 @@ export class WebsocketService {
   private isTrackingRbf: 'all' | 'fullRbf' | false = false;
   private isTrackingRbfSummary = false;
   private isTrackingAddress: string | false = false;
+  private isTrackingAddresses: string[] | false = false;
   private trackingMempoolBlock: number;
   private latestGitCommit = '';
   private onlineCheckTimeout: number;
@@ -126,6 +127,9 @@ export class WebsocketService {
           if (this.isTrackingAddress) {
             this.startTrackAddress(this.isTrackingAddress);
           }
+          if (this.isTrackingAddresses) {
+            this.startTrackAddresses(this.isTrackingAddresses);
+          }
           this.stateService.connectionState$.next(2);
         }
 
@@ -175,6 +179,16 @@ export class WebsocketService {
     this.isTrackingAddress = false;
   }
 
+  startTrackAddresses(addresses: string[]) {
+    this.websocketSubject.next({ 'track-addresses': addresses });
+    this.isTrackingAddresses = addresses;
+  }
+
+  stopTrackingAddresses() {
+    this.websocketSubject.next({ 'track-addresses': [] });
+    this.isTrackingAddresses = false;
+  }
+
   startTrackAsset(asset: string) {
     this.websocketSubject.next({ 'track-asset': asset });
   }
@@ -374,6 +388,10 @@ export class WebsocketService {
       });
     }
 
+    if (response['multi-address-transactions']) {
+      this.stateService.multiAddressTransactions$.next(response['multi-address-transactions']);
+    }
+
     if (response['block-transactions']) {
       response['block-transactions'].forEach((addressTransaction: Transaction) => {
         this.stateService.blockTransactions$.next(addressTransaction);
@@ -415,6 +433,10 @@ export class WebsocketService {
       this.stateService.previousRetarget$.next(response.previousRetarget);
     }
 
+    if (response['tomahawk']) {
+      this.stateService.serverHealth$.next(response['tomahawk']);
+    }
+
     if (response['git-commit']) {
       this.stateService.backendInfo$.next(response['git-commit']);
     }

frontend/src/app/shared/components/truncate/truncate.component.html

@@ -1,6 +1,6 @@
 <span class="truncate" [style.max-width]="maxWidth ? maxWidth + 'px' : null" [style.justify-content]="textAlign" [class.inline]="inline">
     <ng-container *ngIf="link">
-      <a [routerLink]="link" class="truncate-link">
+      <a [routerLink]="link" class="truncate-link" [target]="external ? '_blank' : ''">
         <ng-container *ngIf="rtl; then rtlTruncated; else ltrTruncated;"></ng-container>
       </a>
     </ng-container>

frontend/src/app/shared/components/truncate/truncate.component.ts

@@ -9,6 +9,7 @@ import { Component, Input, Inject, LOCALE_ID, ChangeDetectionStrategy } from '@a
 export class TruncateComponent {
   @Input() text: string;
   @Input() link: any = null;
+  @Input() external: boolean = false;
   @Input() lastChars: number = 4;
   @Input() maxWidth: number = null;
   @Input() inline: boolean = false;

frontend/src/app/shared/shared.module.ts

@@ -46,6 +46,7 @@ import { BlockOverviewGraphComponent } from '../components/block-overview-graph/
 import { BlockOverviewTooltipComponent } from '../components/block-overview-tooltip/block-overview-tooltip.component';
 import { BlockFiltersComponent } from '../components/block-filters/block-filters.component';
 import { AddressComponent } from '../components/address/address.component';
+import { AddressGroupComponent } from '../components/address-group/address-group.component';
 import { SearchFormComponent } from '../components/search-form/search-form.component';
 import { AddressLabelsComponent } from '../components/address-labels/address-labels.component';
 import { FooterComponent } from '../components/footer/footer.component';
@@ -53,6 +54,8 @@ import { AssetComponent } from '../components/asset/asset.component';
 import { AssetsComponent } from '../components/assets/assets.component';
 import { AssetsNavComponent } from '../components/assets/assets-nav/assets-nav.component';
 import { StatusViewComponent } from '../components/status-view/status-view.component';
+import { ServerHealthComponent } from '../components/server-health/server-health.component';
+import { ServerStatusComponent } from '../components/server-health/server-status.component';
 import { FeesBoxComponent } from '../components/fees-box/fees-box.component';
 import { DifficultyComponent } from '../components/difficulty/difficulty.component';
 import { DifficultyTooltipComponent } from '../components/difficulty/difficulty-tooltip.component';
@@ -145,12 +148,15 @@ import { OnlyVsizeDirective, OnlyWeightDirective } from './components/weight-dir
     BlockFiltersComponent,
     TransactionsListComponent,
     AddressComponent,
+    AddressGroupComponent,
     SearchFormComponent,
     AddressLabelsComponent,
     FooterComponent,
     AssetComponent,
     AssetsComponent,
     StatusViewComponent,
+    ServerHealthComponent,
+    ServerStatusComponent,
     FeesBoxComponent,
     DifficultyComponent,
     DifficultyMiningComponent,
@@ -271,12 +277,15 @@ import { OnlyVsizeDirective, OnlyWeightDirective } from './components/weight-dir
     BlockFiltersComponent,
     TransactionsListComponent,
     AddressComponent,
+    AddressGroupComponent,
     SearchFormComponent,
     AddressLabelsComponent,
     FooterComponent,
     AssetComponent,
     AssetsComponent,
     StatusViewComponent,
+    ServerHealthComponent,
+    ServerStatusComponent,
     FeesBoxComponent,
     DifficultyComponent,
     DifficultyMiningComponent,

production/check

@@ -0,0 +1,31 @@
+#!/usr/bin/env zsh
+#for j in fmt va1 fra tk7;do for i in 1 2 3 4 5 6;do echo -n 20$i.$j: ;curl -i -s https://node20$i.$j.mempool.space/api/v1/services/accelerator/accelerations|head -1;done;done
+check_mempoolspace_frontend_git_hash() {
+	echo curl -s --connect-to "::node${1}.${2}.mempool.space:443" https://mempool.space/resources/config.js
+	echo -n $(curl -s --connect-to "::node${1}.${2}.mempool.space:443" https://mempool.space/resources/config.js|grep GIT_COMMIT_HASH|cut -d "'" -f2|cut -c1-8)
+}
+check_mempoolfoss_frontend_git_hash() {
+	echo -n $(curl -s "https://node${1}.${2}.mempool.space/resources/config.js"|grep GIT_COMMIT_HASH|cut -d "'" -f2|cut -c1-8)
+}
+check_mempoolspace_frontend_md5_hash() {
+	echo -n $(curl -s --connect-to "::node${1}.${2}.mempool.space:443" https://mempool.space|md5|cut -c1-8)
+}
+check_mempoolfoss_frontend_md5_hash() {
+	echo -n $(curl -s https://node${1}.${2}.mempool.space|md5|cut -c1-8)
+}
+for site in fmt va1 fra tk7;do
+	echo "${site}"
+	for node in 201 202 203 204 205 206 207 208 209 210 211 212 213 214;do
+		[ "${site}" = "fmt" ] && [ "${node}" -gt 206 ] && continue
+		[ "${site}" = "tk7" ] && [ "${node}" -gt 206 ] && continue
+		echo -n "node${node}.${site}: "
+		#check_mempoolspace_frontend_git_hash $node $site
+		#echo -n " "
+		check_mempoolspace_frontend_md5_hash $node $site
+		echo -n " "
+		check_mempoolfoss_frontend_git_hash $node $site
+		echo -n " "
+		check_mempoolfoss_frontend_md5_hash $node $site
+		echo
+	done
+done

production/mempool-config.bisq.json

@@ -1,5 +1,6 @@
 {
   "MEMPOOL": {
+    "OFFICIAL": true,
     "NETWORK": "bisq",
     "BACKEND": "esplora",
     "HTTP_PORT": 8996,

production/mempool-config.liquid.json

@@ -1,5 +1,6 @@
 {
   "MEMPOOL": {
+    "OFFICIAL": true,
     "NETWORK": "liquid",
     "BACKEND": "esplora",
     "HTTP_PORT": 8998,

production/mempool-config.liquidtestnet.json

@@ -1,5 +1,6 @@
 {
   "MEMPOOL": {
+    "OFFICIAL": true,
     "NETWORK": "liquid",
     "BACKEND": "esplora",
     "HTTP_PORT": 8994,

production/mempool-config.mainnet-lightning.json

@@ -1,5 +1,6 @@
 {
   "MEMPOOL": {
+    "OFFICIAL": true,
     "ENABLED": false,
     "NETWORK": "mainnet",
     "BACKEND": "esplora",

production/mempool-config.mainnet.json

@@ -1,5 +1,6 @@
 {
   "MEMPOOL": {
+    "OFFICIAL": true,
     "NETWORK": "mainnet",
     "BACKEND": "esplora",
     "HTTP_PORT": 8999,
@@ -21,7 +22,8 @@
     "DISK_CACHE_BLOCK_INTERVAL": 1,
     "MAX_PUSH_TX_SIZE_WEIGHT": 4000000,
     "ALLOW_UNREACHABLE": true,
-    "PRICE_UPDATES_PER_HOUR": 12
+    "PRICE_UPDATES_PER_HOUR": 12,
+    "MAX_TRACKED_ADDRESSES": 10
   },
   "SYSLOG" : {
     "MIN_PRIORITY": "debug"

production/mempool-config.signet-lightning.json

@@ -1,5 +1,6 @@
 {
   "MEMPOOL": {
+    "OFFICIAL": true,
     "ENABLED": false,
     "NETWORK": "signet",
     "BACKEND": "esplora",

production/mempool-config.signet.json

@@ -1,5 +1,6 @@
 {
   "MEMPOOL": {
+    "OFFICIAL": true,
     "NETWORK": "signet",
     "BACKEND": "esplora",
     "HTTP_PORT": 8995,
@@ -14,7 +15,8 @@
     "POLL_RATE_MS": 1000,
     "DISK_CACHE_BLOCK_INTERVAL": 1,
     "MAX_PUSH_TX_SIZE_WEIGHT": 4000000,
-    "ALLOW_UNREACHABLE": true
+    "ALLOW_UNREACHABLE": true,
+    "MAX_TRACKED_ADDRESSES": 10
   },
   "SYSLOG" : {
     "MIN_PRIORITY": "debug"

production/mempool-config.testnet-lightning.json

@@ -1,5 +1,6 @@
 {
   "MEMPOOL": {
+    "OFFICIAL": true,
     "ENABLED": false,
     "NETWORK": "testnet",
     "BACKEND": "esplora",

production/mempool-config.testnet.json

@@ -1,5 +1,6 @@
 {
   "MEMPOOL": {
+    "OFFICIAL": true,
     "NETWORK": "testnet",
     "BACKEND": "esplora",
     "HTTP_PORT": 8997,
@@ -14,7 +15,8 @@
     "POLL_RATE_MS": 1000,
     "DISK_CACHE_BLOCK_INTERVAL": 1,
     "MAX_PUSH_TX_SIZE_WEIGHT": 4000000,
-    "ALLOW_UNREACHABLE": true
+    "ALLOW_UNREACHABLE": true,
+    "MAX_TRACKED_ADDRESSES": 10
   },
   "SYSLOG" : {
     "MIN_PRIORITY": "debug"

production/nginx/http-proxy-cache.conf

@@ -8,5 +8,9 @@ proxy_cache_path /var/cache/nginx/apicold keys_zone=apicold:200m levels=1:2 inac
 proxy_cache_path /var/cache/nginx/unfurler keys_zone=unfurler:200m levels=1:2 inactive=30d max_size=2000m;
 proxy_cache_path /var/cache/nginx/slurper keys_zone=slurper:500m levels=1:2 inactive=365d max_size=5000m;
 proxy_cache_path /var/cache/nginx/markets keys_zone=markets:20m levels=1:2 inactive=365d max_size=100m;
-types_hash_max_size 4096;
+
-proxy_buffer_size 8k;
+types_hash_max_size	8192;
+
+proxy_busy_buffers_size	256k;
+proxy_buffer_size	128k;
+proxy_buffers	4	256k;

scripts/get_block_tip_height.sh

@@ -0,0 +1,25 @@
+BASE_HEIGHT=$(curl -sk https://node202.tk7.mempool.space/api/v1/blocks/tip/height)
+IN_SYNC=true
+echo "Base height (node202.tk7): $BASE_HEIGHT"
+
+for LOCATION in fmt va1 fra tk7
+do
+  for NODE in 201 202 203 204 205 206
+  do
+    NODE_HEIGHT=$(curl -sk https://node$NODE.$LOCATION.mempool.space/api/v1/blocks/tip/height)
+    echo $(echo node$NODE.$LOCATION.mempool.space) - $NODE_HEIGHT
+    if [ "$NODE_HEIGHT" -ne "$BASE_HEIGHT" ]; then
+      COUNT=$((BASE_HEIGHT-NODE_HEIGHT))
+      echo $(echo node$NODE.$LOCATION.mempool.space) is not in sync. delta: $COUNT
+      IN_SYNC=false
+    fi
+  done
+done
+
+if [ "$IN_SYNC" = false ]; then
+  echo "One or more servers are out of sync. Check the logs."
+  exit -1
+else
+  echo "All servers are in sync."
+fi
+