Merge pull request #755 from knorrium/fix_dashboard_memory_leak

Add a potential fix for the memory leak on the Dashboard

.vscode/settings.json

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

backend/.vscode/settings.json

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

backend/mempool-config.sample.json

@@ -11,7 +11,8 @@
     "RECOMMENDED_FEE_PERCENTILE": 50,
     "BLOCK_WEIGHT_UNITS": 4000000,
     "INITIAL_BLOCKS_AMOUNT": 8,
-    "MEMPOOL_BLOCKS_AMOUNT": 8
+    "MEMPOOL_BLOCKS_AMOUNT": 8,
+    "PRICE_FEED_UPDATE_INTERVAL": 3600
   },
   "CORE_RPC": {
     "HOST": "127.0.0.1",

backend/package-lock.json

@@ -26,7 +26,7 @@
         "@types/locutus": "^0.0.6",
         "@types/ws": "^7.4.4",
         "tslint": "^6.1.0",
-        "typescript": "^4.1.5"
+        "typescript": "4.4.2"
       }
     },
     "node_modules/@babel/code-frame": {
@@ -1473,10 +1473,11 @@
       "integrity": "sha512-7uc1O8h1M1g0rArakJdf0uLRSSgFcYexrVoKo+bzJd32gd4gDy2L/Z+8/FjPnU9ydY3pEnVPtr9FyscYY60K1g=="
     },
     "node_modules/typescript": {
-      "version": "4.2.3",
+      "version": "4.4.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.3.tgz",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.4.2.tgz",
-      "integrity": "sha512-qOcYwxaByStAWrBf4x0fibwZvMRG+r4cQoTjbPtUlrWjBHbmCAww1i448U0GJ+3cNNEtebDteo/cHOR3xJ4wEw==",
+      "integrity": "sha512-gzP+t5W4hdy4c+68bfcv0t400HVJMMd2+H9B7gae1nQlBzCqvrXX+6GL/b3GAgyTH966pzrZ70/fRjwAtZksSQ==",
       "dev": true,
+      "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -2770,9 +2771,9 @@
       "integrity": "sha512-7uc1O8h1M1g0rArakJdf0uLRSSgFcYexrVoKo+bzJd32gd4gDy2L/Z+8/FjPnU9ydY3pEnVPtr9FyscYY60K1g=="
     },
     "typescript": {
-      "version": "4.2.3",
+      "version": "4.4.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.3.tgz",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.4.2.tgz",
-      "integrity": "sha512-qOcYwxaByStAWrBf4x0fibwZvMRG+r4cQoTjbPtUlrWjBHbmCAww1i448U0GJ+3cNNEtebDteo/cHOR3xJ4wEw==",
+      "integrity": "sha512-gzP+t5W4hdy4c+68bfcv0t400HVJMMd2+H9B7gae1nQlBzCqvrXX+6GL/b3GAgyTH966pzrZ70/fRjwAtZksSQ==",
       "dev": true
     },
     "unpipe": {
@@ -2820,7 +2821,8 @@
     "ws": {
       "version": "7.4.6",
       "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
-      "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A=="
+      "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A==",
+      "requires": {}
     },
     "yallist": {
       "version": "4.0.0",

backend/package.json

@@ -45,6 +45,6 @@
     "@types/locutus": "^0.0.6",
     "@types/ws": "^7.4.4",
     "tslint": "^6.1.0",
-    "typescript": "^4.1.5"
+    "typescript": "4.4.2"
   }
 }

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

@@ -162,7 +162,7 @@ class Bisq {
       this.buildIndex();
       this.calculateStats();
     } catch (e) {
-      logger.info('loadBisqDumpFile() error.' + e.message || e);
+      logger.info('loadBisqDumpFile() error.' + (e instanceof Error ? e.message : e));
     }
   }
 

backend/src/api/bisq/markets.ts

@@ -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/electrum-api.ts

@@ -93,7 +93,7 @@ class BitcoindElectrsApi extends BitcoinApi implements AbstractBitcoinApi {
       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(e instanceof Error ? e.message : 'Error');
     }
   }
 
@@ -131,7 +131,7 @@ class BitcoindElectrsApi extends BitcoinApi implements AbstractBitcoinApi {
       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(e instanceof Error ? e.message : 'Error');
     }
   }
 

backend/src/api/blocks.ts

@@ -89,7 +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]);
             }

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/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);
+    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/mempool.ts

@@ -124,7 +124,7 @@ 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));
         }
       }
 

backend/src/api/statistics.ts

@@ -255,7 +255,7 @@ 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));
     }
   }
 
@@ -313,7 +313,7 @@ class Statistics {
         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));
     }
   }
 
@@ -325,7 +325,7 @@ class Statistics {
       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 [];
     }
   }
@@ -338,7 +338,7 @@ class Statistics {
       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 [];
     }
   }
@@ -351,7 +351,7 @@ class Statistics {
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
     } catch (e) {
-      logger.err('$list1W() error' + e);
+      logger.err('$list1W() error' + (e instanceof Error ? e.message : e));
       return [];
     }
   }
@@ -364,7 +364,7 @@ class Statistics {
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
     } catch (e) {
-      logger.err('$list1M() error' + e);
+      logger.err('$list1M() error' + (e instanceof Error ? e.message : e));
       return [];
     }
   }
@@ -377,7 +377,7 @@ class Statistics {
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
     } catch (e) {
-      logger.err('$list3M() error' + e);
+      logger.err('$list3M() error' + (e instanceof Error ? e.message : e));
       return [];
     }
   }
@@ -390,7 +390,7 @@ class Statistics {
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
     } catch (e) {
-      logger.err('$list6M() error' + e);
+      logger.err('$list6M() error' + (e instanceof Error ? e.message : e));
       return [];
     }
   }
@@ -403,7 +403,7 @@ class Statistics {
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
     } catch (e) {
-      logger.err('$list6M() error' + e);
+      logger.err('$list6M() error' + (e instanceof Error ? e.message : e));
       return [];
     }
   }

backend/src/api/websocket-handler.ts

@@ -61,7 +61,7 @@ class WebsocketHandler {
                       const fullTx = await transactionUtils.$getTransactionExtended(tx.txid, true);
                       response['tx'] = fullTx;
                     } catch (e) {
-                      logger.debug('Error finding transaction: ' + e.message || e);
+                      logger.debug('Error finding transaction: ' + (e instanceof Error ? e.message : e));
                     }
                   }
                 } else {
@@ -69,7 +69,7 @@ class WebsocketHandler {
                     const fullTx = await transactionUtils.$getTransactionExtended(client['track-tx'], true);
                     response['tx'] = fullTx;
                   } catch (e) {
-                    logger.debug('Error finding transaction. ' + e.message || e);
+                    logger.debug('Error finding transaction. ' + (e instanceof Error ? e.message : e));
                     client['track-mempool-tx'] = parsedMessage['track-tx'];
                   }
                 }
@@ -124,7 +124,7 @@ class WebsocketHandler {
             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));
         }
       });
     });
@@ -252,7 +252,7 @@ class WebsocketHandler {
               const fullTx = await transactionUtils.$getTransactionExtended(tx.txid, true);
               response['tx'] = fullTx;
             } catch (e) {
-              logger.debug('Error finding transaction in mempool: ' + e.message || e);
+              logger.debug('Error finding transaction in mempool: ' + (e instanceof Error ? e.message : e));
             }
           } else {
             response['tx'] = tx;
@@ -272,7 +272,7 @@ class WebsocketHandler {
                 const fullTx = await transactionUtils.$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);
@@ -286,7 +286,7 @@ class WebsocketHandler {
                 const fullTx = await transactionUtils.$getTransactionExtended(tx.txid, true);
                 foundTransactions.push(fullTx);
               } catch (e) {
-                logger.debug('Error finding transaction in mempool: ' + e.message || e);
+                logger.debug('Error finding transaction in mempool: ' + (e instanceof Error ? e.message : e));
               }
             } else {
               foundTransactions.push(tx);
@@ -337,7 +337,7 @@ class WebsocketHandler {
                 const fullTx = await transactionUtils.$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;

backend/src/config.ts

@@ -14,6 +14,7 @@ interface IConfig {
     BLOCK_WEIGHT_UNITS: number;
     INITIAL_BLOCKS_AMOUNT: number;
     MEMPOOL_BLOCKS_AMOUNT: number;
+    PRICE_FEED_UPDATE_INTERVAL: number;
   };
   ESPLORA: {
     REST_API_URL: string;
@@ -75,6 +76,7 @@ const defaults: IConfig = {
     'BLOCK_WEIGHT_UNITS': 4000000,
     'INITIAL_BLOCKS_AMOUNT': 8,
     'MEMPOOL_BLOCKS_AMOUNT': 8,
+    'PRICE_FEED_UPDATE_INTERVAL': 3600,
   },
   'ESPLORA': {
     'REST_API_URL': 'http://127.0.0.1:3000',

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

@@ -111,7 +111,7 @@ class Server {
       try {
         await memPool.$updateMemPoolInfo();
       } catch (e) {
-        const msg = `updateMempoolInfo: ${(e.message || e)}`;
+        const msg = `updateMempoolInfo: ${(e instanceof Error ? e.message : e)}`;
         if (config.CORE_RPC_MINFEE.ENABLED) {
           logger.warn(msg);
         } else {
@@ -123,7 +123,7 @@ 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();

backend/src/routes.ts

@@ -55,7 +55,7 @@ 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);
     }
   }
 
@@ -74,7 +74,7 @@ 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);
     }
   }
 
@@ -477,10 +477,10 @@ 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);
     }
   }
 
@@ -491,10 +491,10 @@ class Routes {
       res.send(transaction.hex);
     } 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);
     }
   }
 
@@ -504,10 +504,10 @@ 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);
     }
   }
 
@@ -516,7 +516,7 @@ 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);
     }
   }
 
@@ -526,7 +526,7 @@ class Routes {
       res.setHeader('content-type', 'text/plain');
       res.send(blockHeader);
     } catch (e) {
-      res.status(500).send(e.message || e);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 
@@ -563,7 +563,7 @@ 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);
     }
   }
 
@@ -582,13 +582,13 @@ 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);
     }
   }
 
@@ -597,7 +597,7 @@ 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);
     }
   }
 
@@ -611,10 +611,10 @@ class Routes {
       const addressData = await bitcoinApi.$getAddress(req.params.address);
       res.json(addressData);
     } catch (e) {
-      if (e.message && e.message.indexOf('exceeds') > 0) {
+      if (e instanceof Error && e.message && e.message.indexOf('exceeds') > 0) {
-        return res.status(413).send(e.message);
+        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);
     }
   }
 
@@ -628,10 +628,10 @@ 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) {
+      if (e instanceof Error && e.message && e.message.indexOf('exceeds') > 0) {
-        return res.status(413).send(e.message);
+        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);
     }
   }
 
@@ -644,7 +644,7 @@ 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);
     }
   }
 
@@ -665,7 +665,7 @@ 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);
     }
   }
 
@@ -674,7 +674,7 @@ 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);
     }
   }
 
@@ -683,7 +683,7 @@ 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);
     }
   }
 
@@ -741,7 +741,7 @@ class Routes {
       res.json(result);
 
     } catch (e) {
-      res.status(500).send(e.message || e);
+      res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
 }

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

@@ -9,6 +9,11 @@ describe('Mainnet', () => {
         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');
@@ -56,6 +61,46 @@ describe('Mainnet', () => {
             cy.waitForSkeletonGone();
         });
 
+        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 bc1 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/bc1pqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqs3wf0qm');
+                            cy.waitForSkeletonGone();
+                            cy.get('.text-center').should('not.have.text', 'Invalid Bitcoin address');
+                        });
+                    });
+                });
+            });
+        });
+
         describe('blocks navigation', () => {
 
             describe('keyboard events', () => {

frontend/cypress/support/commands.ts

@@ -59,7 +59,7 @@ const codes = {
 Cypress.Commands.add('waitForSkeletonGone', () => {
     cy.waitUntil(() => {
         return Cypress.$('.skeleton-loader').length === 0;
-    }, { verbose: true, description: "waitForSkeletonGone", errorMsg: "skeleton loaders never went away", timeout: 7000, interval: 50});
+    }, { verbose: true, description: "waitForSkeletonGone", errorMsg: "skeleton loaders never went away", timeout: 15000, interval: 50});
 });
 
 Cypress.Commands.add(

frontend/package-lock.json

@@ -68,7 +68,7 @@
       },
       "optionalDependencies": {
         "@cypress/schematic": "^1.3.0",
-        "cypress": "^7.7.0",
+        "cypress": "^8.3.1",
         "cypress-fail-on-console-error": "^2.1.0",
         "cypress-wait-until": "^1.7.1",
         "mock-socket": "^9.0.3",
@@ -1815,9 +1815,9 @@
       }
     },
     "node_modules/@cypress/request": {
-      "version": "2.88.5",
+      "version": "2.88.6",
-      "resolved": "https://registry.npmjs.org/@cypress/request/-/request-2.88.5.tgz",
+      "resolved": "https://registry.npmjs.org/@cypress/request/-/request-2.88.6.tgz",
-      "integrity": "sha512-TzEC1XMi1hJkywWpRfD2clreTa/Z+lOrXDCxxBTBPEcY5azdPi56A6Xw+O4tWJnaJH3iIE7G5aDXZC6JgRZLcA==",
+      "integrity": "sha512-z0UxBE/+qaESAHY9p9sM2h8Y4XqtsbDCt0/DPOrqA/RZgKi4PkxdpXyK4wCCnSk1xHqWHZZAE+gV6aDAR6+caQ==",
       "optional": true,
       "dependencies": {
         "aws-sign2": "~0.7.0",
@@ -1833,13 +1833,12 @@
         "isstream": "~0.1.2",
         "json-stringify-safe": "~5.0.1",
         "mime-types": "~2.1.19",
-        "oauth-sign": "~0.9.0",
         "performance-now": "^2.1.0",
         "qs": "~6.5.2",
         "safe-buffer": "^5.1.2",
         "tough-cookie": "~2.5.0",
         "tunnel-agent": "^0.6.0",
-        "uuid": "^3.3.2"
+        "uuid": "^8.3.2"
       },
       "engines": {
         "node": ">= 6"
@@ -1867,15 +1866,6 @@
         "node": ">=0.8"
       }
     },
-    "node_modules/@cypress/request/node_modules/uuid": {
-      "version": "3.4.0",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",
-      "integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==",
-      "optional": true,
-      "bin": {
-        "uuid": "bin/uuid"
-      }
-    },
     "node_modules/@cypress/schematic": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/@cypress/schematic/-/schematic-1.3.0.tgz",
@@ -6069,12 +6059,13 @@
       "dev": true
     },
     "node_modules/cypress": {
-      "version": "7.7.0",
+      "version": "8.3.1",
-      "resolved": "https://registry.npmjs.org/cypress/-/cypress-7.7.0.tgz",
+      "resolved": "https://registry.npmjs.org/cypress/-/cypress-8.3.1.tgz",
-      "integrity": "sha512-uYBYXNoI5ym0UxROwhQXWTi8JbUEjpC6l/bzoGZNxoKGsLrC1SDPgIDJMgLX/MeEdPL0UInXLDUWN/rSyZUCjQ==",
+      "integrity": "sha512-1v6pfx+/5cXhaT5T6QKOvnkawmEHWHLiVzm3MYMoQN1fkX2Ma1C32STd3jBStE9qT5qPSTILjGzypVRxCBi40g==",
+      "hasInstallScript": true,
       "optional": true,
       "dependencies": {
-        "@cypress/request": "^2.88.5",
+        "@cypress/request": "^2.88.6",
         "@cypress/xvfb": "^1.2.4",
         "@types/node": "^14.14.31",
         "@types/sinonjs__fake-timers": "^6.0.2",
@@ -12222,7 +12213,7 @@
       "version": "0.9.0",
       "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
       "integrity": "sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ==",
-      "devOptional": true,
+      "dev": true,
       "engines": {
         "node": "*"
       }
@@ -17553,7 +17544,7 @@
       "version": "8.3.2",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
       "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
-      "dev": true,
+      "devOptional": true,
       "bin": {
         "uuid": "dist/bin/uuid"
       }
@@ -21510,9 +21501,9 @@
       }
     },
     "@cypress/request": {
-      "version": "2.88.5",
+      "version": "2.88.6",
-      "resolved": "https://registry.npmjs.org/@cypress/request/-/request-2.88.5.tgz",
+      "resolved": "https://registry.npmjs.org/@cypress/request/-/request-2.88.6.tgz",
-      "integrity": "sha512-TzEC1XMi1hJkywWpRfD2clreTa/Z+lOrXDCxxBTBPEcY5azdPi56A6Xw+O4tWJnaJH3iIE7G5aDXZC6JgRZLcA==",
+      "integrity": "sha512-z0UxBE/+qaESAHY9p9sM2h8Y4XqtsbDCt0/DPOrqA/RZgKi4PkxdpXyK4wCCnSk1xHqWHZZAE+gV6aDAR6+caQ==",
       "optional": true,
       "requires": {
         "aws-sign2": "~0.7.0",
@@ -21528,13 +21519,12 @@
         "isstream": "~0.1.2",
         "json-stringify-safe": "~5.0.1",
         "mime-types": "~2.1.19",
-        "oauth-sign": "~0.9.0",
         "performance-now": "^2.1.0",
         "qs": "~6.5.2",
         "safe-buffer": "^5.1.2",
         "tough-cookie": "~2.5.0",
         "tunnel-agent": "^0.6.0",
-        "uuid": "^3.3.2"
+        "uuid": "^8.3.2"
       },
       "dependencies": {
         "qs": {
@@ -21552,12 +21542,6 @@
             "psl": "^1.1.28",
             "punycode": "^2.1.1"
           }
-        },
-        "uuid": {
-          "version": "3.4.0",
-          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",
-          "integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==",
-          "optional": true
         }
       }
     },
@@ -25229,12 +25213,12 @@
       "dev": true
     },
     "cypress": {
-      "version": "7.7.0",
+      "version": "8.3.1",
-      "resolved": "https://registry.npmjs.org/cypress/-/cypress-7.7.0.tgz",
+      "resolved": "https://registry.npmjs.org/cypress/-/cypress-8.3.1.tgz",
-      "integrity": "sha512-uYBYXNoI5ym0UxROwhQXWTi8JbUEjpC6l/bzoGZNxoKGsLrC1SDPgIDJMgLX/MeEdPL0UInXLDUWN/rSyZUCjQ==",
+      "integrity": "sha512-1v6pfx+/5cXhaT5T6QKOvnkawmEHWHLiVzm3MYMoQN1fkX2Ma1C32STd3jBStE9qT5qPSTILjGzypVRxCBi40g==",
       "optional": true,
       "requires": {
-        "@cypress/request": "^2.88.5",
+        "@cypress/request": "^2.88.6",
         "@cypress/xvfb": "^1.2.4",
         "@types/node": "^14.14.31",
         "@types/sinonjs__fake-timers": "^6.0.2",
@@ -30373,7 +30357,7 @@
       "version": "0.9.0",
       "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
       "integrity": "sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ==",
-      "devOptional": true
+      "dev": true
     },
     "object-assign": {
       "version": "4.1.1",
@@ -34803,7 +34787,7 @@
       "version": "8.3.2",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
       "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
-      "dev": true
+      "devOptional": true
     },
     "validate-npm-package-name": {
       "version": "3.0.0",

frontend/package.json

@@ -112,7 +112,7 @@
   },
   "optionalDependencies": {
     "@cypress/schematic": "^1.3.0",
-    "cypress": "^7.7.0",
+    "cypress": "^8.3.1",
     "cypress-fail-on-console-error": "^2.1.0",
     "cypress-wait-until": "^1.7.1",
     "mock-socket": "^9.0.3",

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

@@ -1,6 +1,6 @@
-import { Component, OnInit, Input, ChangeDetectionStrategy } from '@angular/core';
+import { Component, OnInit, OnDestroy, Input, ChangeDetectionStrategy } from '@angular/core';
 import { StateService } from '../../services/state.service';
-import { Observable } from 'rxjs';
+import { Observable, Subscription } from 'rxjs';
 
 @Component({
   selector: 'app-amount',
@@ -8,11 +8,13 @@ import { Observable } from 'rxjs';
   styleUrls: ['./amount.component.scss'],
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class AmountComponent implements OnInit {
+export class AmountComponent implements OnInit, OnDestroy {
   conversions$: Observable<any>;
   viewFiat$: Observable<boolean>;
   network = '';
 
+  stateSubscription: Subscription;
+
   @Input() satoshis: number;
   @Input() digitsInfo = '1.8-8';
   @Input() noFiat = false;
@@ -24,7 +26,13 @@ export class AmountComponent implements OnInit {
   ngOnInit() {
     this.viewFiat$ = this.stateService.viewFiat$.asObservable();
     this.conversions$ = this.stateService.conversions$.asObservable();
-    this.stateService.networkChanged$.subscribe((network) => this.network = network);
+    this.stateSubscription = this.stateService.networkChanged$.subscribe((network) => this.network = network);
+  }
+
+  ngOnDestroy() {
+    if (this.stateSubscription) {
+      this.stateSubscription.unsubscribe();
+    }
   }
 
 }

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

@@ -65,8 +65,20 @@ export class BlockComponent implements OnInit, OnDestroy {
         map((indicators) => indicators['blocktxs-' + this.blockHash] !== undefined ? indicators['blocktxs-' + this.blockHash] : 0)
       );
 
-    this.subscription = this.route.paramMap
+    this.blocksSubscription = this.stateService.blocks$
-    .pipe(
+      .subscribe(([block]) => {
+        this.latestBlock = block;
+        this.latestBlocks.unshift(block);
+        this.latestBlocks = this.latestBlocks.slice(0, this.stateService.env.KEEP_BLOCKS_AMOUNT);
+        this.setNextAndPreviousBlockLink();
+
+        if (block.id === this.blockHash) {
+          this.block = block;
+          this.fees = block.reward / 100000000 - this.blockSubsidy;
+        }
+      });
+
+    this.subscription = this.route.paramMap.pipe(
       switchMap((params: ParamMap) => {
         const blockHash: string = params.get('id') || '';
         this.block = undefined;
@@ -94,7 +106,12 @@ export class BlockComponent implements OnInit, OnDestroy {
         } else {
           this.isLoadingBlock = true;
 
+          let blockInCache: Block;
           if (isBlockHeight) {
+            blockInCache = this.latestBlocks.find((block) => block.height === parseInt(blockHash, 10));
+            if (blockInCache) {
+              return of(blockInCache);
+            }
             return this.electrsApiService.getBlockHashFromHeight$(parseInt(blockHash, 10))
               .pipe(
                 switchMap((hash) => {
@@ -107,12 +124,11 @@ export class BlockComponent implements OnInit, OnDestroy {
               );
           }
 
-          this.stateService.blocks$.subscribe(([block]) => {
+          blockInCache = this.latestBlocks.find((block) => block.id === this.blockHash);
-            if (block.id === blockHash) {
+          if (blockInCache) {
-              this.block = block;
+            return of(blockInCache);
-            }
+          }
-          });
+
-          
           return this.electrsApiService.getBlock$(blockHash);
         }
       }),
@@ -159,14 +175,6 @@ export class BlockComponent implements OnInit, OnDestroy {
       this.isLoadingBlock = false;
     });
 
-    this.blocksSubscription = this.stateService.blocks$
-      .subscribe(([block]) => {
-        this.latestBlock = block;
-        this.latestBlocks.unshift(block);
-        this.latestBlocks = this.latestBlocks.slice(0, this.stateService.env.KEEP_BLOCKS_AMOUNT);
-        this.setNextAndPreviousBlockLink();
-      });
-
     this.networkChangedSubscription = this.stateService.networkChanged$
       .subscribe((network) => this.network = network);
 
@@ -269,12 +277,14 @@ export class BlockComponent implements OnInit, OnDestroy {
       return;
     }
     const block = this.latestBlocks.find((b) => b.height === this.nextBlockHeight - 2);
-    this.router.navigate([(this.network && this.stateService.env.BASE_MODULE === 'mempool' ? '/' + this.network : '') + '/block/', block ? block.id : this.block.previousblockhash], { state: { data: { block, blockHeight: this.nextBlockHeight - 2 } } });
+    this.router.navigate([(this.network && this.stateService.env.BASE_MODULE === 'mempool' ? '/' + this.network : '') + '/block/',
+      block ? block.id : this.block.previousblockhash], { state: { data: { block, blockHeight: this.nextBlockHeight - 2 } } });
   }
 
   navigateToNextBlock() {
     const block = this.latestBlocks.find((b) => b.height === this.nextBlockHeight);
-    this.router.navigate([(this.network && this.stateService.env.BASE_MODULE === 'mempool' ? '/' + this.network : '') + '/block/', block ? block.id : this.nextBlockHeight], { state: { data: { block, blockHeight: this.nextBlockHeight } } });
+    this.router.navigate([(this.network && this.stateService.env.BASE_MODULE === 'mempool' ? '/' + this.network : '') + '/block/',
+      block ? block.id : this.nextBlockHeight], { state: { data: { block, blockHeight: this.nextBlockHeight } } });
   }
 
   setNextAndPreviousBlockLink(){

frontend/tslint.json

@@ -12,6 +12,7 @@
     "arrow-parens": false,
     "arrow-return-shorthand": true,
     "curly": true,
+    "no-bitwise": false,
     "deprecation": {
       "severity": "warning"
     },