Merge branch 'master' into dependabot/npm_and_yarn/frontend/tinyify-3.1.0

backend/mempool-config.sample.json

@@ -20,7 +20,8 @@
     "EXTERNAL_MAX_RETRY": 1,
     "EXTERNAL_RETRY_INTERVAL": 0,
     "USER_AGENT": "mempool",
-    "STDOUT_LOG_MIN_PRIORITY": "debug"
+    "STDOUT_LOG_MIN_PRIORITY": "debug",
+    "AUTOMATIC_BLOCK_REINDEXING": false
   },
   "CORE_RPC": {
     "HOST": "127.0.0.1",
@@ -66,6 +67,15 @@
     "ENABLED": false,
     "DATA_PATH": "/bisq/statsnode-data/btc_mainnet/db"
   },
+  "LIGHTNING": {
+    "ENABLED": false,
+    "BACKEND": "lnd"
+  },
+  "LND": {
+    "TLS_CERT_PATH": "tls.cert",
+    "MACAROON_PATH": "admin.macaroon",
+    "SOCKET": "localhost:10009"
+  },
   "SOCKS5PROXY": {
     "ENABLED": false,
     "USE_ONION": true,

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mempool-backend",
-  "version": "2.4.1-dev",
+  "version": "2.5.0-dev",
   "description": "Bitcoin mempool visualizer and blockchain explorer backend",
   "license": "GNU Affero General Public License v3.0",
   "homepage": "https://mempool.space",
@@ -34,8 +34,10 @@
     "@types/node": "^16.11.41",
     "axios": "~0.27.2",
     "bitcoinjs-lib": "6.0.1",
+    "bolt07": "^1.8.1",
     "crypto-js": "^4.0.0",
     "express": "^4.18.0",
+    "lightning": "^5.16.3",
     "mysql2": "2.3.3",
     "node-worker-threads-pool": "^1.5.1",
     "socks-proxy-agent": "~7.0.0",

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

@@ -13,6 +13,7 @@ export interface AbstractBitcoinApi {
   $getAddressTransactions(address: string, lastSeenTxId: string): Promise<IEsploraApi.Transaction[]>;
   $getAddressPrefix(prefix: string): string[];
   $sendRawTransaction(rawTransaction: string): Promise<string>;
+  $getOutspend(txId: string, vout: number): Promise<IEsploraApi.Outspend>;
   $getOutspends(txId: string): Promise<IEsploraApi.Outspend[]>;
   $getBatchedOutspends(txId: string[]): Promise<IEsploraApi.Outspend[][]>;
 }

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

@@ -130,6 +130,16 @@ class BitcoinApi implements AbstractBitcoinApi {
     return this.bitcoindClient.sendRawTransaction(rawTransaction);
   }
 
+  async $getOutspend(txId: string, vout: number): Promise<IEsploraApi.Outspend> {
+    const txOut = await this.bitcoindClient.getTxOut(txId, vout, false);
+    return {
+      spent: txOut === null,
+      status: {
+        confirmed: true,
+      }
+    };
+  }
+
   async $getOutspends(txId: string): Promise<IEsploraApi.Outspend[]> {
     const outSpends: IEsploraApi.Outspend[] = [];
     const tx = await this.$getRawTransaction(txId, true, false);
@@ -195,7 +205,9 @@ class BitcoinApi implements AbstractBitcoinApi {
         sequence: vin.sequence,
         txid: vin.txid || '',
         vout: vin.vout || 0,
-        witness: vin.txinwitness,
+        witness: vin.txinwitness || [],
+        inner_redeemscript_asm: '',
+        inner_witnessscript_asm: '',
       };
     });
 

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

@@ -25,10 +25,10 @@ export namespace IEsploraApi {
     is_coinbase: boolean;
     scriptsig: string;
     scriptsig_asm: string;
-    inner_redeemscript_asm?: string;
+    inner_redeemscript_asm: string;
-    inner_witnessscript_asm?: string;
+    inner_witnessscript_asm: string;
     sequence: any;
-    witness?: string[];
+    witness: string[];
     prevout: Vout | null;
     // Elements
     is_pegin?: boolean;

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

@@ -66,6 +66,11 @@ class ElectrsApi implements AbstractBitcoinApi {
     throw new Error('Method not implemented.');
   }
 
+  $getOutspend(txId: string, vout: number): Promise<IEsploraApi.Outspend> {
+    return axios.get<IEsploraApi.Outspend>(config.ESPLORA.REST_API_URL + '/tx/' + txId + '/outspend/' + vout, this.axiosConfig)
+      .then((response) => response.data);
+  }
+
   $getOutspends(txId: string): Promise<IEsploraApi.Outspend[]> {
     return axios.get<IEsploraApi.Outspend[]>(config.ESPLORA.REST_API_URL + '/tx/' + txId + '/outspends', this.axiosConfig)
       .then((response) => response.data);

backend/src/api/blocks.ts

@@ -579,17 +579,13 @@ class Blocks {
   }
 
   public async $getBlocks(fromHeight?: number, limit: number = 15): Promise<BlockExtended[]> {
-    let currentHeight = fromHeight !== undefined ? fromHeight : this.getCurrentBlockHeight();
+    let currentHeight = fromHeight !== undefined ? fromHeight : await blocksRepository.$mostRecentBlockHeight();
     const returnBlocks: BlockExtended[] = [];
 
     if (currentHeight < 0) {
       return returnBlocks;
     }
 
-    if (currentHeight === 0 && Common.indexingEnabled()) {
-      currentHeight = await blocksRepository.$mostRecentBlockHeight();
-    }
-
     // Check if block height exist in local cache to skip the hash lookup
     const blockByHeight = this.getBlocks().find((b) => b.height === currentHeight);
     let startFromHash: string | null = null;

backend/src/api/database-migration.ts

@@ -4,7 +4,7 @@ import logger from '../logger';
 import { Common } from './common';
 
 class DatabaseMigration {
-  private static currentVersion = 24;
+  private static currentVersion = 27;
   private queryTimeout = 120000;
   private statisticsAddedIndexed = false;
   private uniqueLogs: string[] = [];
@@ -248,6 +248,32 @@ class DatabaseMigration {
         await this.$executeQuery('DROP TABLE IF EXISTS `blocks_audits`');
         await this.$executeQuery(this.getCreateBlocksAuditsTableQuery(), await this.$checkIfTableExists('blocks_audits'));
       }
+
+      if (databaseSchemaVersion < 25 && isBitcoin === true) {
+        await this.$executeQuery(`INSERT INTO state VALUES('last_node_stats', 0, '1970-01-01');`);
+        await this.$executeQuery(this.getCreateLightningStatisticsQuery(), await this.$checkIfTableExists('lightning_stats'));
+        await this.$executeQuery(this.getCreateNodesQuery(), await this.$checkIfTableExists('nodes'));
+        await this.$executeQuery(this.getCreateChannelsQuery(), await this.$checkIfTableExists('channels'));
+        await this.$executeQuery(this.getCreateNodesStatsQuery(), await this.$checkIfTableExists('node_stats'));
+      }
+
+      if (databaseSchemaVersion < 26 && isBitcoin === true) {
+        this.uniqueLog(logger.notice, `'lightning_stats' table has been truncated. Will re-generate historical data from scratch.`);
+        await this.$executeQuery(`TRUNCATE lightning_stats`);
+        await this.$executeQuery('ALTER TABLE `lightning_stats` ADD tor_nodes int(11) NOT NULL DEFAULT "0"');
+        await this.$executeQuery('ALTER TABLE `lightning_stats` ADD clearnet_nodes int(11) NOT NULL DEFAULT "0"');
+        await this.$executeQuery('ALTER TABLE `lightning_stats` ADD unannounced_nodes int(11) NOT NULL DEFAULT "0"');
+      }
+
+      if (databaseSchemaVersion < 27 && isBitcoin === true) {
+        await this.$executeQuery('ALTER TABLE `lightning_stats` ADD avg_capacity bigint(20) unsigned NOT NULL DEFAULT "0"');
+        await this.$executeQuery('ALTER TABLE `lightning_stats` ADD avg_fee_rate int(11) unsigned NOT NULL DEFAULT "0"');
+        await this.$executeQuery('ALTER TABLE `lightning_stats` ADD avg_base_fee_mtokens bigint(20) unsigned NOT NULL DEFAULT "0"');
+        await this.$executeQuery('ALTER TABLE `lightning_stats` ADD med_capacity bigint(20) unsigned NOT NULL DEFAULT "0"');
+        await this.$executeQuery('ALTER TABLE `lightning_stats` ADD med_fee_rate int(11) unsigned NOT NULL DEFAULT "0"');
+        await this.$executeQuery('ALTER TABLE `lightning_stats` ADD med_base_fee_mtokens bigint(20) unsigned NOT NULL DEFAULT "0"');
+      }
+
     } catch (e) {
       throw e;
     }
@@ -572,6 +598,82 @@ class DatabaseMigration {
       ) ENGINE=InnoDB DEFAULT CHARSET=utf8;`;
   }
 
+  private getCreateLightningStatisticsQuery(): string {
+    return `CREATE TABLE IF NOT EXISTS lightning_stats (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      added datetime NOT NULL,
+      channel_count int(11) NOT NULL,
+      node_count int(11) NOT NULL,
+      total_capacity double unsigned NOT NULL,
+      PRIMARY KEY (id)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;`;
+  }
+
+  private getCreateNodesQuery(): string {
+    return `CREATE TABLE IF NOT EXISTS nodes (
+      public_key varchar(66) NOT NULL,
+      first_seen datetime NOT NULL,
+      updated_at datetime NOT NULL,
+      alias varchar(200) CHARACTER SET utf8mb4 NOT NULL,
+      color varchar(200) NOT NULL,
+      sockets text DEFAULT NULL,
+      PRIMARY KEY (public_key),
+      KEY alias (alias(10))
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8;`;
+  }
+
+  private getCreateChannelsQuery(): string {
+    return `CREATE TABLE IF NOT EXISTS channels (
+      id bigint(11) unsigned NOT NULL,
+      short_id varchar(15) NOT NULL DEFAULT '',
+      capacity bigint(20) unsigned NOT NULL,
+      transaction_id varchar(64) NOT NULL,
+      transaction_vout int(11) NOT NULL,
+      updated_at datetime DEFAULT NULL,
+      created datetime DEFAULT NULL,
+      status int(11) NOT NULL DEFAULT 0,
+      closing_transaction_id varchar(64) DEFAULT NULL,
+      closing_date datetime DEFAULT NULL,
+      closing_reason int(11) DEFAULT NULL,
+      node1_public_key varchar(66) NOT NULL,
+      node1_base_fee_mtokens bigint(20) unsigned DEFAULT NULL,
+      node1_cltv_delta int(11) DEFAULT NULL,
+      node1_fee_rate bigint(11) DEFAULT NULL,
+      node1_is_disabled tinyint(1) DEFAULT NULL,
+      node1_max_htlc_mtokens bigint(20) unsigned DEFAULT NULL,
+      node1_min_htlc_mtokens bigint(20) DEFAULT NULL,
+      node1_updated_at datetime DEFAULT NULL,
+      node2_public_key varchar(66) NOT NULL,
+      node2_base_fee_mtokens bigint(20) unsigned DEFAULT NULL,
+      node2_cltv_delta int(11) DEFAULT NULL,
+      node2_fee_rate bigint(11) DEFAULT NULL,
+      node2_is_disabled tinyint(1) DEFAULT NULL,
+      node2_max_htlc_mtokens bigint(20) unsigned DEFAULT NULL,
+      node2_min_htlc_mtokens bigint(20) unsigned DEFAULT NULL,
+      node2_updated_at datetime DEFAULT NULL,
+      PRIMARY KEY (id),
+      KEY node1_public_key (node1_public_key),
+      KEY node2_public_key (node2_public_key),
+      KEY status (status),
+      KEY short_id (short_id),
+      KEY transaction_id (transaction_id),
+      KEY closing_transaction_id (closing_transaction_id)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;`;
+  }
+
+  private getCreateNodesStatsQuery(): string {
+    return `CREATE TABLE IF NOT EXISTS node_stats (
+      id int(11) unsigned NOT NULL AUTO_INCREMENT,
+      public_key varchar(66) NOT NULL DEFAULT '',
+      added date NOT NULL,
+      capacity bigint(20) unsigned NOT NULL DEFAULT 0,
+      channels int(11) unsigned NOT NULL DEFAULT 0,
+      PRIMARY KEY (id),
+      UNIQUE KEY added (added,public_key),
+      KEY public_key (public_key)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;`;
+  }
+
   private getCreateBlocksAuditsTableQuery(): string {
     return `CREATE TABLE IF NOT EXISTS blocks_audits (
       time timestamp NOT NULL,

backend/src/api/explorer/channels.api.ts

@@ -0,0 +1,227 @@
+import logger from '../../logger';
+import DB from '../../database';
+
+class ChannelsApi {
+  public async $getAllChannels(): Promise<any[]> {
+    try {
+      const query = `SELECT * FROM channels`;
+      const [rows]: any = await DB.query(query);
+      return rows;
+    } catch (e) {
+      logger.err('$getAllChannels error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $searchChannelsById(search: string): Promise<any[]> {
+    try {
+      const searchStripped = search.replace('%', '') + '%';
+      const query = `SELECT id, short_id, capacity FROM channels WHERE id LIKE ? OR short_id LIKE ? LIMIT 10`;
+      const [rows]: any = await DB.query(query, [searchStripped, searchStripped]);
+      return rows;
+    } catch (e) {
+      logger.err('$searchChannelsById error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getChannelsByStatus(status: number): Promise<any[]> {
+    try {
+      const query = `SELECT * FROM channels WHERE status = ?`;
+      const [rows]: any = await DB.query(query, [status]);
+      return rows;
+    } catch (e) {
+      logger.err('$getChannelsByStatus error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getClosedChannelsWithoutReason(): Promise<any[]> {
+    try {
+      const query = `SELECT * FROM channels WHERE status = 2 AND closing_reason IS NULL AND closing_transaction_id != ''`;
+      const [rows]: any = await DB.query(query);
+      return rows;
+    } catch (e) {
+      logger.err('$getClosedChannelsWithoutReason error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getChannelsWithoutCreatedDate(): Promise<any[]> {
+    try {
+      const query = `SELECT * FROM channels WHERE created IS NULL`;
+      const [rows]: any = await DB.query(query);
+      return rows;
+    } catch (e) {
+      logger.err('$getChannelsWithoutCreatedDate error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getChannel(id: string): Promise<any> {
+    try {
+      const query = `SELECT n1.alias AS alias_left, n2.alias AS alias_right, channels.*, ns1.channels AS channels_left, ns1.capacity AS capacity_left, ns2.channels AS channels_right, ns2.capacity AS capacity_right FROM channels LEFT JOIN nodes AS n1 ON n1.public_key = channels.node1_public_key LEFT JOIN nodes AS n2 ON n2.public_key = channels.node2_public_key LEFT JOIN node_stats AS ns1 ON ns1.public_key = channels.node1_public_key LEFT JOIN node_stats AS ns2 ON ns2.public_key = channels.node2_public_key WHERE (ns1.id = (SELECT MAX(id) FROM node_stats WHERE public_key = channels.node1_public_key) AND ns2.id = (SELECT MAX(id) FROM node_stats WHERE public_key = channels.node2_public_key)) AND channels.id = ?`;
+      const [rows]: any = await DB.query(query, [id]);
+      if (rows[0]) {
+        return this.convertChannel(rows[0]);
+      }
+    } catch (e) {
+      logger.err('$getChannel error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getChannelsStats(): Promise<any> {
+    try {
+      // Feedback from zerofeerouting:
+      // "I would argue > 5000ppm can be ignored. Channels charging more than .5% fee are ignored by CLN for example."
+      const ignoredFeeRateThreshold = 5000;
+      const ignoredBaseFeeThreshold = 5000;
+
+      // Capacity
+      let query = `SELECT AVG(capacity) AS avgCapacity FROM channels WHERE status = 1 ORDER BY capacity`;
+      const [avgCapacity]: any = await DB.query(query);
+
+      query = `SELECT capacity FROM channels WHERE status = 1 ORDER BY capacity`;
+      let [capacity]: any = await DB.query(query);
+      capacity = capacity.map(capacity => capacity.capacity);
+      const medianCapacity = capacity[Math.floor(capacity.length / 2)];
+
+      // Fee rates
+      query = `SELECT node1_fee_rate FROM channels WHERE node1_fee_rate < ${ignoredFeeRateThreshold} AND status = 1`;
+      let [feeRates1]: any = await DB.query(query);
+      feeRates1 = feeRates1.map(rate => rate.node1_fee_rate);
+      query = `SELECT node2_fee_rate FROM channels WHERE node2_fee_rate < ${ignoredFeeRateThreshold} AND status = 1`;
+      let [feeRates2]: any = await DB.query(query);
+      feeRates2 = feeRates2.map(rate => rate.node2_fee_rate);
+
+      let feeRates = (feeRates1.concat(feeRates2)).sort((a, b) => a - b);
+      let avgFeeRate = 0;
+      for (const rate of feeRates) {
+        avgFeeRate += rate; 
+      }
+      avgFeeRate /= feeRates.length;
+      const medianFeeRate = feeRates[Math.floor(feeRates.length / 2)];
+
+      // Base fees
+      query = `SELECT node1_base_fee_mtokens FROM channels WHERE node1_base_fee_mtokens < ${ignoredBaseFeeThreshold} AND status = 1`;
+      let [baseFees1]: any = await DB.query(query);
+      baseFees1 = baseFees1.map(rate => rate.node1_base_fee_mtokens);
+      query = `SELECT node2_base_fee_mtokens FROM channels WHERE node2_base_fee_mtokens < ${ignoredBaseFeeThreshold} AND status = 1`;
+      let [baseFees2]: any = await DB.query(query);
+      baseFees2 = baseFees2.map(rate => rate.node2_base_fee_mtokens);
+
+      let baseFees = (baseFees1.concat(baseFees2)).sort((a, b) => a - b);
+      let avgBaseFee = 0;
+      for (const fee of baseFees) {
+        avgBaseFee += fee; 
+      }
+      avgBaseFee /= baseFees.length;
+      const medianBaseFee = feeRates[Math.floor(baseFees.length / 2)];
+      
+      return {
+        avgCapacity: parseInt(avgCapacity[0].avgCapacity, 10),
+        avgFeeRate: avgFeeRate,
+        avgBaseFee: avgBaseFee,
+        medianCapacity: medianCapacity,
+        medianFeeRate: medianFeeRate,
+        medianBaseFee: medianBaseFee,
+      }
+
+    } catch (e) {
+      logger.err(`Cannot calculate channels statistics. Reason: ${e instanceof Error ? e.message : e}`);
+      throw e;
+    }
+  }
+
+  public async $getChannelsByTransactionId(transactionIds: string[]): Promise<any[]> {
+    try {
+      transactionIds = transactionIds.map((id) => '\'' + id + '\'');
+      const query = `SELECT n1.alias AS alias_left, n2.alias AS alias_right, channels.* FROM channels LEFT JOIN nodes AS n1 ON n1.public_key = channels.node1_public_key LEFT JOIN nodes AS n2 ON n2.public_key = channels.node2_public_key WHERE channels.transaction_id IN (${transactionIds.join(', ')}) OR channels.closing_transaction_id IN (${transactionIds.join(', ')})`;
+      const [rows]: any = await DB.query(query);
+      const channels = rows.map((row) => this.convertChannel(row));
+      return channels;
+    } catch (e) {
+      logger.err('$getChannelByTransactionId error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getChannelsForNode(public_key: string, index: number, length: number, status: string): Promise<any[]> {
+    try {
+      // Default active and inactive channels
+      let statusQuery = '< 2';
+      // Closed channels only
+      if (status === 'closed') {
+        statusQuery = '= 2';
+      }
+      const query = `SELECT n1.alias AS alias_left, n2.alias AS alias_right, channels.*, ns1.channels AS channels_left, ns1.capacity AS capacity_left, ns2.channels AS channels_right, ns2.capacity AS capacity_right FROM channels LEFT JOIN nodes AS n1 ON n1.public_key = channels.node1_public_key LEFT JOIN nodes AS n2 ON n2.public_key = channels.node2_public_key LEFT JOIN node_stats AS ns1 ON ns1.public_key = channels.node1_public_key LEFT JOIN node_stats AS ns2 ON ns2.public_key = channels.node2_public_key WHERE (ns1.id = (SELECT MAX(id) FROM node_stats WHERE public_key = channels.node1_public_key) AND ns2.id = (SELECT MAX(id) FROM node_stats WHERE public_key = channels.node2_public_key)) AND (node1_public_key = ? OR node2_public_key = ?) AND status ${statusQuery} ORDER BY channels.capacity DESC LIMIT ?, ?`;
+      const [rows]: any = await DB.query(query, [public_key, public_key, index, length]);
+      const channels = rows.map((row) => this.convertChannel(row));
+      return channels;
+    } catch (e) {
+      logger.err('$getChannelsForNode error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getChannelsCountForNode(public_key: string, status: string): Promise<any> {
+    try {
+      // Default active and inactive channels
+      let statusQuery = '< 2';
+      // Closed channels only
+      if (status === 'closed') {
+        statusQuery = '= 2';
+      }
+      const query = `SELECT COUNT(*) AS count FROM channels WHERE (node1_public_key = ? OR node2_public_key = ?) AND status ${statusQuery}`;
+      const [rows]: any = await DB.query(query, [public_key, public_key]);
+      return rows[0]['count'];
+    } catch (e) {
+      logger.err('$getChannelsForNode error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  private convertChannel(channel: any): any {
+    return {
+      'id': channel.id,
+      'short_id': channel.short_id,
+      'capacity': channel.capacity,
+      'transaction_id': channel.transaction_id,
+      'transaction_vout': channel.transaction_vout,
+      'closing_transaction_id': channel.closing_transaction_id,
+      'closing_reason': channel.closing_reason,
+      'updated_at': channel.updated_at,
+      'created': channel.created,
+      'status': channel.status,
+      'node_left': {
+        'alias': channel.alias_left,
+        'public_key': channel.node1_public_key,
+        'channels': channel.channels_left,
+        'capacity': channel.capacity_left,
+        'base_fee_mtokens': channel.node1_base_fee_mtokens,
+        'cltv_delta': channel.node1_cltv_delta,
+        'fee_rate': channel.node1_fee_rate,
+        'is_disabled': channel.node1_is_disabled,
+        'max_htlc_mtokens': channel.node1_max_htlc_mtokens,
+        'min_htlc_mtokens': channel.node1_min_htlc_mtokens,
+        'updated_at': channel.node1_updated_at,
+      },
+      'node_right': {
+        'alias': channel.alias_right,
+        'public_key': channel.node2_public_key,
+        'channels': channel.channels_right,
+        'capacity': channel.capacity_right,
+        'base_fee_mtokens': channel.node2_base_fee_mtokens,
+        'cltv_delta': channel.node2_cltv_delta,
+        'fee_rate': channel.node2_fee_rate,
+        'is_disabled': channel.node2_is_disabled,
+        'max_htlc_mtokens': channel.node2_max_htlc_mtokens,
+        'min_htlc_mtokens': channel.node2_min_htlc_mtokens,
+        'updated_at': channel.node2_updated_at,
+      },
+    };
+  }
+}
+
+export default new ChannelsApi();

backend/src/api/explorer/channels.routes.ts

@@ -0,0 +1,98 @@
+import config from '../../config';
+import { Application, Request, Response } from 'express';
+import channelsApi from './channels.api';
+
+class ChannelsRoutes {
+  constructor() { }
+
+  public initRoutes(app: Application) {
+    app
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/channels/txids', this.$getChannelsByTransactionIds)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/channels/search/:search', this.$searchChannelsById)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/channels/:short_id', this.$getChannel)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/channels', this.$getChannelsForNode)
+    ;
+  }
+
+  private async $searchChannelsById(req: Request, res: Response) {
+    try {
+      const channels = await channelsApi.$searchChannelsById(req.params.search);
+      res.json(channels);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  private async $getChannel(req: Request, res: Response) {
+    try {
+      const channel = await channelsApi.$getChannel(req.params.short_id);
+      if (!channel) {
+        res.status(404).send('Channel not found');
+        return;
+      }
+      res.json(channel);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  private async $getChannelsForNode(req: Request, res: Response) {
+    try {
+      if (typeof req.query.public_key !== 'string') {
+        res.status(400).send('Missing parameter: public_key');
+        return;
+      }
+      const index = parseInt(typeof req.query.index === 'string' ? req.query.index : '0', 10) || 0;
+      const status: string = typeof req.query.status === 'string' ? req.query.status : '';
+      const length = 25;
+      const channels = await channelsApi.$getChannelsForNode(req.query.public_key, index, length, status);
+      const channelsCount = await channelsApi.$getChannelsCountForNode(req.query.public_key, status);
+      res.header('X-Total-Count', channelsCount.toString());
+      res.json(channels);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  private async $getChannelsByTransactionIds(req: Request, res: Response) {
+    try {
+      if (!Array.isArray(req.query.txId)) {
+        res.status(400).send('Not an array');
+        return;
+      }
+      const txIds: string[] = [];
+      for (const _txId in req.query.txId) {
+        if (typeof req.query.txId[_txId] === 'string') {
+          txIds.push(req.query.txId[_txId].toString());
+        }
+      }
+      const channels = await channelsApi.$getChannelsByTransactionId(txIds);
+      const inputs: any[] = [];
+      const outputs: any[] = [];
+      for (const txid of txIds) {
+        const foundChannelInputs = channels.find((channel) => channel.closing_transaction_id === txid);
+        if (foundChannelInputs) {
+          inputs.push(foundChannelInputs);
+        } else {
+          inputs.push(null);
+        }
+        const foundChannelOutputs = channels.find((channel) => channel.transaction_id === txid);
+        if (foundChannelOutputs) {
+          outputs.push(foundChannelOutputs);
+        } else {
+          outputs.push(null);
+        }
+      }
+
+      res.json({
+        inputs: inputs,
+        outputs: outputs,
+      });
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+}
+
+export default new ChannelsRoutes();

backend/src/api/explorer/general.routes.ts

@@ -0,0 +1,58 @@
+import config from '../../config';
+import { Application, Request, Response } from 'express';
+import nodesApi from './nodes.api';
+import channelsApi from './channels.api';
+import statisticsApi from './statistics.api';
+class GeneralLightningRoutes {
+  constructor() { }
+
+  public initRoutes(app: Application) {
+    app
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/search', this.$searchNodesAndChannels)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/statistics/latest', this.$getGeneralStats)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/statistics/:interval', this.$getStatistics)
+    ;
+  }
+
+  private async $searchNodesAndChannels(req: Request, res: Response) {
+    if (typeof req.query.searchText !== 'string') {
+      res.status(400).send('Missing parameter: searchText');
+      return;
+    }
+    try {
+      const nodes = await nodesApi.$searchNodeByPublicKeyOrAlias(req.query.searchText);
+      const channels = await channelsApi.$searchChannelsById(req.query.searchText);
+      res.json({
+        nodes: nodes,
+        channels: channels,
+      });
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  private async $getStatistics(req: Request, res: Response) {
+    try {
+      const statistics = await statisticsApi.$getStatistics(req.params.interval);
+      const statisticsCount = await statisticsApi.$getStatisticsCount();
+      res.header('Pragma', 'public');
+      res.header('Cache-control', 'public');
+      res.header('X-total-count', statisticsCount.toString());
+      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
+      res.json(statistics);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  private async $getGeneralStats(req: Request, res: Response) {
+    try {
+      const statistics = await statisticsApi.$getLatestStatistics();
+      res.json(statistics);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+}
+
+export default new GeneralLightningRoutes();

backend/src/api/explorer/nodes.api.ts

@@ -0,0 +1,62 @@
+import logger from '../../logger';
+import DB from '../../database';
+
+class NodesApi {
+  public async $getNode(public_key: string): Promise<any> {
+    try {
+      const query = `SELECT nodes.*, (SELECT COUNT(*) FROM channels WHERE channels.status < 2 AND (channels.node1_public_key = ? OR channels.node2_public_key = ?)) AS channel_count, (SELECT SUM(capacity) FROM channels WHERE channels.status < 2 AND (channels.node1_public_key = ? OR channels.node2_public_key = ?)) AS capacity, (SELECT AVG(capacity) FROM channels WHERE status < 2 AND (node1_public_key = ? OR node2_public_key = ?)) AS channels_capacity_avg FROM nodes WHERE public_key = ?`;
+      const [rows]: any = await DB.query(query, [public_key, public_key, public_key, public_key, public_key, public_key, public_key]);
+      return rows[0];
+    } catch (e) {
+      logger.err('$getNode error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getNodeStats(public_key: string): Promise<any> {
+    try {
+      const query = `SELECT UNIX_TIMESTAMP(added) AS added, capacity, channels FROM node_stats WHERE public_key = ? ORDER BY added DESC`;
+      const [rows]: any = await DB.query(query, [public_key]);
+      return rows;
+    } catch (e) {
+      logger.err('$getNodeStats error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getTopCapacityNodes(): Promise<any> {
+    try {
+      const query = `SELECT nodes.*, node_stats.capacity, node_stats.channels FROM nodes LEFT JOIN node_stats ON node_stats.public_key = nodes.public_key ORDER BY node_stats.added DESC, node_stats.capacity DESC LIMIT 10`;
+      const [rows]: any = await DB.query(query);
+      return rows;
+    } catch (e) {
+      logger.err('$getTopCapacityNodes error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getTopChannelsNodes(): Promise<any> {
+    try {
+      const query = `SELECT nodes.*, node_stats.capacity, node_stats.channels FROM nodes LEFT JOIN node_stats ON node_stats.public_key = nodes.public_key ORDER BY node_stats.added DESC, node_stats.channels DESC LIMIT 10`;
+      const [rows]: any = await DB.query(query);
+      return rows;
+    } catch (e) {
+      logger.err('$getTopChannelsNodes error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $searchNodeByPublicKeyOrAlias(search: string) {
+    try {
+      const searchStripped = search.replace('%', '') + '%';
+      const query = `SELECT nodes.public_key, nodes.alias, node_stats.capacity FROM nodes LEFT JOIN node_stats ON node_stats.public_key = nodes.public_key WHERE nodes.public_key LIKE ? OR nodes.alias LIKE ? GROUP BY nodes.public_key ORDER BY node_stats.capacity DESC LIMIT 10`;
+      const [rows]: any = await DB.query(query, [searchStripped, searchStripped]);
+      return rows;
+    } catch (e) {
+      logger.err('$searchNodeByPublicKeyOrAlias error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+}
+
+export default new NodesApi();

backend/src/api/explorer/nodes.routes.ts

@@ -0,0 +1,61 @@
+import config from '../../config';
+import { Application, Request, Response } from 'express';
+import nodesApi from './nodes.api';
+class NodesRoutes {
+  constructor() { }
+
+  public initRoutes(app: Application) {
+    app
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/search/:search', this.$searchNode)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/top', this.$getTopNodes)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/:public_key/statistics', this.$getHistoricalNodeStats)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/:public_key', this.$getNode)
+    ;
+  }
+
+  private async $searchNode(req: Request, res: Response) {
+    try {
+      const nodes = await nodesApi.$searchNodeByPublicKeyOrAlias(req.params.search);
+      res.json(nodes);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  private async $getNode(req: Request, res: Response) {
+    try {
+      const node = await nodesApi.$getNode(req.params.public_key);
+      if (!node) {
+        res.status(404).send('Node not found');
+        return;
+      }
+      res.json(node);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  private async $getHistoricalNodeStats(req: Request, res: Response) {
+    try {
+      const statistics = await nodesApi.$getNodeStats(req.params.public_key);
+      res.json(statistics);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  private async $getTopNodes(req: Request, res: Response) {
+    try {
+      const topCapacityNodes = await nodesApi.$getTopCapacityNodes();
+      const topChannelsNodes = await nodesApi.$getTopChannelsNodes();
+      res.json({
+        topByCapacity: topCapacityNodes,
+        topByChannels: topChannelsNodes,
+      });
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+}
+
+export default new NodesRoutes();

backend/src/api/explorer/statistics.api.ts

@@ -0,0 +1,52 @@
+import logger from '../../logger';
+import DB from '../../database';
+import { Common } from '../common';
+
+class StatisticsApi {
+  public async $getStatistics(interval: string | null = null): Promise<any> {
+    interval = Common.getSqlInterval(interval);
+
+    let query = `SELECT UNIX_TIMESTAMP(added) AS added, channel_count, node_count, total_capacity, tor_nodes, clearnet_nodes, unannounced_nodes
+      FROM lightning_stats`;
+
+    if (interval) {
+      query += ` WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW()`;
+    }
+
+    query += ` ORDER BY id DESC`;
+
+    try {
+      const [rows]: any = await DB.query(query);
+      return rows;
+    } catch (e) {
+      logger.err('$getStatistics error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getLatestStatistics(): Promise<any> {
+    try {
+      const [rows]: any = await DB.query(`SELECT * FROM lightning_stats ORDER BY id DESC LIMIT 1`);
+      const [rows2]: any = await DB.query(`SELECT * FROM lightning_stats ORDER BY id DESC LIMIT 1 OFFSET 7`);
+      return {
+        latest: rows[0],
+        previous: rows2[0],
+      };
+    } catch (e) {
+      logger.err('$getLatestStatistics error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getStatisticsCount(): Promise<number> {
+    try {
+      const [rows]: any = await DB.query(`SELECT count(*) as count FROM lightning_stats`);
+      return rows[0].count;
+    } catch (e) {
+      logger.err('$getLatestStatistics error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+}
+
+export default new StatisticsApi();

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

@@ -0,0 +1,7 @@
+import { ILightningApi } from './lightning-api.interface';
+
+export interface AbstractLightningApi {
+  $getNetworkInfo(): Promise<ILightningApi.NetworkInfo>;
+  $getNetworkGraph(): Promise<ILightningApi.NetworkGraph>;
+  $getInfo(): Promise<ILightningApi.Info>;
+}

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

@@ -0,0 +1,13 @@
+import config from '../../config';
+import { AbstractLightningApi } from './lightning-api-abstract-factory';
+import LndApi from './lnd/lnd-api';
+
+function lightningApiFactory(): AbstractLightningApi {
+  switch (config.LIGHTNING.BACKEND) {
+    case 'lnd':
+    default:
+      return new LndApi();
+  }
+}
+
+export default lightningApiFactory();

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

@@ -0,0 +1,71 @@
+export namespace ILightningApi {
+  export interface NetworkInfo {
+    average_channel_size: number;
+    channel_count: number;
+    max_channel_size: number;
+    median_channel_size: number;
+    min_channel_size: number;
+    node_count: number;
+    not_recently_updated_policy_count: number;
+    total_capacity: number;
+  }
+
+  export interface NetworkGraph {
+    channels: Channel[];
+    nodes: Node[];
+  }
+
+  export interface Channel {
+    id: string;
+    capacity: number;
+    policies: Policy[];
+    transaction_id: string;
+    transaction_vout: number;
+    updated_at?: string;
+  }
+
+  interface Policy {
+    public_key: string;
+    base_fee_mtokens?: string;
+    cltv_delta?: number;
+    fee_rate?: number;
+    is_disabled?: boolean;
+    max_htlc_mtokens?: string;
+    min_htlc_mtokens?: string;
+    updated_at?: string;
+  }
+
+  export interface Node {
+    alias: string;
+    color: string;
+    features: Feature[];
+    public_key: string;
+    sockets: string[];
+    updated_at?: string;
+  }
+
+  export interface Info {
+    chains: string[];
+    color: string;
+    active_channels_count: number;
+    alias: string;
+    current_block_hash: string;
+    current_block_height: number;
+    features: Feature[];
+    is_synced_to_chain: boolean;
+    is_synced_to_graph: boolean;
+    latest_block_at: string;
+    peers_count: number;
+    pending_channels_count: number;
+    public_key: string;
+    uris: any[];
+    version: string;
+  }
+  
+  export interface Feature {
+    bit: number;
+    is_known: boolean;
+    is_required: boolean;
+    type?: string;
+  }
+}

backend/src/api/lightning/lnd/lnd-api.ts

@@ -0,0 +1,45 @@
+import { AbstractLightningApi } from '../lightning-api-abstract-factory';
+import { ILightningApi } from '../lightning-api.interface';
+import * as fs from 'fs';
+import { authenticatedLndGrpc, getWalletInfo, getNetworkGraph, getNetworkInfo } from 'lightning';
+import config from '../../../config';
+import logger from '../../../logger';
+
+class LndApi implements AbstractLightningApi {
+  private lnd: any;
+  constructor() {
+    if (!config.LIGHTNING.ENABLED) {
+      return;
+    }
+    try {
+      const tls = fs.readFileSync(config.LND.TLS_CERT_PATH).toString('base64');
+      const macaroon = fs.readFileSync(config.LND.MACAROON_PATH).toString('base64');
+
+      const { lnd } = authenticatedLndGrpc({
+        cert: tls,
+        macaroon: macaroon,
+        socket: config.LND.SOCKET,
+      });
+
+      this.lnd = lnd;
+    } catch (e) {
+      logger.err('Could not initiate the LND service handler: ' + (e instanceof Error ? e.message : e));
+      process.exit(1);
+    }
+  }
+
+  async $getNetworkInfo(): Promise<ILightningApi.NetworkInfo> {
+    return await getNetworkInfo({ lnd: this.lnd });
+  }
+
+  async $getInfo(): Promise<ILightningApi.Info> {
+    // @ts-ignore
+    return await getWalletInfo({ lnd: this.lnd });
+  }
+
+  async $getNetworkGraph(): Promise<ILightningApi.NetworkGraph> {
+    return await getNetworkGraph({ lnd: this.lnd });
+  }
+}
+
+export default LndApi;

backend/src/api/mining.ts

@@ -173,8 +173,6 @@ class Mining {
    */
   public async $generatePoolHashrateHistory(): Promise<void> {
     const now = new Date();
-
-    try {
     const lastestRunDate = await HashratesRepository.$getLatestRun('last_weekly_hashrates_indexing');
 
     // Run only if:
@@ -184,14 +182,15 @@ class Mining {
     if (!runIndexing) {
       return;
     }
-    } catch (e) {
-      throw e;
-    }
 
     try {
+      const oldestConsecutiveBlockTimestamp = 1000 * (await BlocksRepository.$getOldestConsecutiveBlock()).timestamp;
+
+      const genesisBlock = await bitcoinClient.getBlock(await bitcoinClient.getBlockHash(0));
+      const genesisTimestamp = genesisBlock.time * 1000;
+
       const indexedTimestamp = await HashratesRepository.$getWeeklyHashrateTimestamps();
       const hashrates: any[] = [];
-      const genesisTimestamp = 1231006505000; // bitcoin-cli getblock 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
  
       const lastMonday = new Date(now.setDate(now.getDate() - (now.getDay() + 6) % 7));
       const lastMondayMidnight = this.getDateMidnight(lastMonday);
@@ -207,7 +206,7 @@ class Mining {
       logger.debug(`Indexing weekly mining pool hashrate`);
       loadingIndicators.setProgress('weekly-hashrate-indexing', 0);
 
-      while (toTimestamp > genesisTimestamp) {
+      while (toTimestamp > genesisTimestamp && toTimestamp > oldestConsecutiveBlockTimestamp) {
         const fromTimestamp = toTimestamp - 604800000;
 
         // Skip already indexed weeks
@@ -217,14 +216,6 @@ class Mining {
           continue;
         }
 
-        // Check if we have blocks for the previous week (which mean that the week
-        // we are currently indexing has complete data)
-        const blockStatsPreviousWeek: any = await BlocksRepository.$blockCountBetweenTimestamp(
-          null, (fromTimestamp - 604800000) / 1000, (toTimestamp - 604800000) / 1000);
-        if (blockStatsPreviousWeek.blockCount === 0) { // We are done indexing
-          break;
-        }
-
         const blockStats: any = await BlocksRepository.$blockCountBetweenTimestamp(
           null, fromTimestamp / 1000, toTimestamp / 1000);
         const lastBlockHashrate = await bitcoinClient.getNetworkHashPs(blockStats.blockCount,
@@ -232,6 +223,7 @@ class Mining {
 
         let pools = await PoolsRepository.$getPoolsInfoBetween(fromTimestamp / 1000, toTimestamp / 1000);
         const totalBlocks = pools.reduce((acc, pool) => acc + pool.blockCount, 0);
+        if (totalBlocks > 0) {
           pools = pools.map((pool: any) => {
             pool.hashrate = (pool.blockCount / totalBlocks) * lastBlockHashrate;
             pool.share = (pool.blockCount / totalBlocks);
@@ -241,7 +233,7 @@ class Mining {
           for (const pool of pools) {
             hashrates.push({
               hashrateTimestamp: toTimestamp / 1000,
-            avgHashrate: pool['hashrate'],
+              avgHashrate: pool['hashrate'] ,
               poolId: pool.poolId,
               share: pool['share'],
               type: 'weekly',
@@ -251,6 +243,7 @@ class Mining {
           newlyIndexed += hashrates.length;
           await HashratesRepository.$saveHashrates(hashrates);
           hashrates.length = 0;
+        }
 
         const elapsedSeconds = Math.max(1, Math.round((new Date().getTime() / 1000) - timer));
         if (elapsedSeconds > 1) {
@@ -285,20 +278,19 @@ class Mining {
    * [INDEXING] Generate daily hashrate data
    */
   public async $generateNetworkHashrateHistory(): Promise<void> {
-    try {
     // We only run this once a day around midnight
     const latestRunDate = await HashratesRepository.$getLatestRun('last_hashrates_indexing');
     const now = new Date().getUTCDate();
     if (now === latestRunDate) {
       return;
     }
-    } catch (e) {
+
-      throw e;
+    const oldestConsecutiveBlockTimestamp = 1000 * (await BlocksRepository.$getOldestConsecutiveBlock()).timestamp;
-    }
 
     try {
-      const indexedTimestamp = (await HashratesRepository.$getNetworkDailyHashrate(null)).map(hashrate => hashrate.timestamp);
+      const genesisBlock = await bitcoinClient.getBlock(await bitcoinClient.getBlockHash(0));
-      const genesisTimestamp = (config.MEMPOOL.NETWORK === 'signet') ? 1598918400000 : 1231006505000; // bitcoin-cli getblock 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
+      const genesisTimestamp = genesisBlock.time * 1000;
+      const indexedTimestamp = (await HashratesRepository.$getRawNetworkDailyHashrate(null)).map(hashrate => hashrate.timestamp);
       const lastMidnight = this.getDateMidnight(new Date());
       let toTimestamp = Math.round(lastMidnight.getTime());
       const hashrates: any[] = [];
@@ -313,7 +305,7 @@ class Mining {
       logger.debug(`Indexing daily network hashrate`);
       loadingIndicators.setProgress('daily-hashrate-indexing', 0);
 
-      while (toTimestamp > genesisTimestamp) {
+      while (toTimestamp > genesisTimestamp && toTimestamp > oldestConsecutiveBlockTimestamp) {
         const fromTimestamp = toTimestamp - 86400000;
 
         // Skip already indexed days
@@ -323,17 +315,9 @@ class Mining {
           continue;
         }
 
-        // Check if we have blocks for the previous day (which mean that the day
-        // we are currently indexing has complete data)
-        const blockStatsPreviousDay: any = await BlocksRepository.$blockCountBetweenTimestamp(
-          null, (fromTimestamp - 86400000) / 1000, (toTimestamp - 86400000) / 1000);
-        if (blockStatsPreviousDay.blockCount === 0 && config.MEMPOOL.NETWORK === 'mainnet') { // We are done indexing
-          break;
-        }
-
         const blockStats: any = await BlocksRepository.$blockCountBetweenTimestamp(
           null, fromTimestamp / 1000, toTimestamp / 1000);
-        const lastBlockHashrate = await bitcoinClient.getNetworkHashPs(blockStats.blockCount,
+        const lastBlockHashrate = blockStats.blockCount === 0 ? 0 : await bitcoinClient.getNetworkHashPs(blockStats.blockCount,
           blockStats.lastBlockHeight);
 
         hashrates.push({
@@ -368,8 +352,8 @@ class Mining {
         ++totalIndexed;
       }
 
-      // Add genesis block manually on mainnet and testnet
+      // Add genesis block manually
-      if ('signet' !== config.MEMPOOL.NETWORK && toTimestamp <= genesisTimestamp && !indexedTimestamp.includes(genesisTimestamp)) {
+      if (config.MEMPOOL.INDEXING_BLOCKS_AMOUNT === -1 && !indexedTimestamp.includes(genesisTimestamp / 1000)) {
         hashrates.push({
           hashrateTimestamp: genesisTimestamp / 1000,
           avgHashrate: await bitcoinClient.getNetworkHashPs(1, 1),
@@ -405,27 +389,37 @@ class Mining {
     }
 
     const blocks: any = await BlocksRepository.$getBlocksDifficulty();
-
+    const genesisBlock = await bitcoinClient.getBlock(await bitcoinClient.getBlockHash(0));
-    let currentDifficulty = 0;
+    let currentDifficulty = genesisBlock.difficulty;
     let totalIndexed = 0;
 
-    if (indexedHeights[0] !== true) {
+    if (config.MEMPOOL.INDEXING_BLOCKS_AMOUNT === -1 && indexedHeights[0] !== true) {
       await DifficultyAdjustmentsRepository.$saveAdjustments({
-        time: (config.MEMPOOL.NETWORK === 'signet') ? 1598918400 : 1231006505,
+        time: genesisBlock.time,
         height: 0,
-        difficulty: (config.MEMPOOL.NETWORK === 'signet') ? 0.001126515290698186 : 1.0,
+        difficulty: currentDifficulty,
         adjustment: 0.0,
       });
     }
 
+    const oldestConsecutiveBlock = await BlocksRepository.$getOldestConsecutiveBlock();
+    if (config.MEMPOOL.INDEXING_BLOCKS_AMOUNT !== -1) {
+      currentDifficulty = oldestConsecutiveBlock.difficulty;
+    }
+
+    let totalBlockChecked = 0;
+    let timer = new Date().getTime() / 1000;
+
     for (const block of blocks) {
       if (block.difficulty !== currentDifficulty) {
-        if (block.height === 0 || indexedHeights[block.height] === true) { // Already indexed
+        if (indexedHeights[block.height] === true) { // Already indexed
+          if (block.height >= oldestConsecutiveBlock.height) {
             currentDifficulty = block.difficulty;
+          }
           continue;          
         }
 
-        let adjustment = block.difficulty / Math.max(1, currentDifficulty);
+        let adjustment = block.difficulty / currentDifficulty;
         adjustment = Math.round(adjustment * 1000000) / 1000000; // Remove float point noise
 
         await DifficultyAdjustmentsRepository.$saveAdjustments({
@@ -436,10 +430,20 @@ class Mining {
         });
 
         totalIndexed++;
+        if (block.height >= oldestConsecutiveBlock.height) {
           currentDifficulty = block.difficulty;
         }
     }
 
+      totalBlockChecked++;
+      const elapsedSeconds = Math.max(1, Math.round((new Date().getTime() / 1000) - timer));
+      if (elapsedSeconds > 5) {
+        const progress = Math.round(totalBlockChecked / blocks.length * 100);
+        logger.info(`Indexing difficulty adjustment at block #${block.height} | Progress: ${progress}%`);
+        timer = new Date().getTime() / 1000;
+      }
+    }
+
     if (totalIndexed > 0) {
       logger.notice(`Indexed ${totalIndexed} difficulty adjustments`);
     }

backend/src/api/pools-parser.ts

@@ -222,6 +222,10 @@ class PoolsParser {
    * Delete blocks which needs to be reindexed
    */
    private async $deleteBlocskToReindex(finalPoolDataUpdate: any[]) {
+    if (config.MEMPOOL.AUTOMATIC_BLOCK_REINDEXING === false) {
+      return;
+    }
+
     const blockCount = await BlocksRepository.$blockCount(null, null);
     if (blockCount === 0) {
       return;

backend/src/config.ts

@@ -23,10 +23,20 @@ interface IConfig {
     EXTERNAL_RETRY_INTERVAL: number;
     USER_AGENT: string;
     STDOUT_LOG_MIN_PRIORITY: 'emerg' | 'alert' | 'crit' | 'err' | 'warn' | 'notice' | 'info' | 'debug';
+    AUTOMATIC_BLOCK_REINDEXING: boolean;
   };
   ESPLORA: {
     REST_API_URL: string;
   };
+  LIGHTNING: {
+    ENABLED: boolean;
+    BACKEND: 'lnd' | 'cln' | 'ldk';
+  };
+  LND: {
+    TLS_CERT_PATH: string;
+    MACAROON_PATH: string;
+    SOCKET: string;
+  };
   ELECTRUM: {
     HOST: string;
     PORT: number;
@@ -113,6 +123,7 @@ const defaults: IConfig = {
     'EXTERNAL_RETRY_INTERVAL': 0,
     'USER_AGENT': 'mempool',
     'STDOUT_LOG_MIN_PRIORITY': 'debug',
+    'AUTOMATIC_BLOCK_REINDEXING': false,
   },
   'ESPLORA': {
     'REST_API_URL': 'http://127.0.0.1:3000',
@@ -158,6 +169,15 @@ const defaults: IConfig = {
     'ENABLED': false,
     'DATA_PATH': '/bisq/statsnode-data/btc_mainnet/db'
   },
+  'LIGHTNING': {
+    'ENABLED': false,
+    'BACKEND': 'lnd'
+  },
+  'LND': {
+    'TLS_CERT_PATH': '',
+    'MACAROON_PATH': '',
+    'SOCKET': 'localhost:10009',
+  },
   'SOCKS5PROXY': {
     'ENABLED': false,
     'USE_ONION': true,
@@ -166,11 +186,11 @@ const defaults: IConfig = {
     'USERNAME': '',
     'PASSWORD': ''
   },
-  "PRICE_DATA_SERVER": {
+  'PRICE_DATA_SERVER': {
     'TOR_URL': 'http://wizpriceje6q5tdrxkyiazsgu7irquiqjy2dptezqhrtu7l2qelqktid.onion/getAllMarketPrices',
     'CLEARNET_URL': 'https://price.bisq.wiz.biz/getAllMarketPrices'
   },
-  "EXTERNAL_DATA_SERVER": {
+  'EXTERNAL_DATA_SERVER': {
     'MEMPOOL_API': 'https://mempool.space/api/v1',
     'MEMPOOL_ONION': 'http://mempoolhqx4isw62xs7abwphsq7ldayuidyx2v2oethdhhj6mlo2r6ad.onion/api/v1',
     'LIQUID_API': 'https://liquid.network/api/v1',
@@ -190,6 +210,8 @@ class Config implements IConfig {
   SYSLOG: IConfig['SYSLOG'];
   STATISTICS: IConfig['STATISTICS'];
   BISQ: IConfig['BISQ'];
+  LIGHTNING: IConfig['LIGHTNING'];
+  LND: IConfig['LND'];
   SOCKS5PROXY: IConfig['SOCKS5PROXY'];
   PRICE_DATA_SERVER: IConfig['PRICE_DATA_SERVER'];
   EXTERNAL_DATA_SERVER: IConfig['EXTERNAL_DATA_SERVER'];
@@ -205,6 +227,8 @@ class Config implements IConfig {
     this.SYSLOG = configs.SYSLOG;
     this.STATISTICS = configs.STATISTICS;
     this.BISQ = configs.BISQ;
+    this.LIGHTNING = configs.LIGHTNING;
+    this.LND = configs.LND;
     this.SOCKS5PROXY = configs.SOCKS5PROXY;
     this.PRICE_DATA_SERVER = configs.PRICE_DATA_SERVER;
     this.EXTERNAL_DATA_SERVER = configs.EXTERNAL_DATA_SERVER;

backend/src/index.ts

@@ -1,5 +1,5 @@
 import express from "express";
-import { Application, Request, Response, NextFunction, Express } from 'express';
+import { Application, Request, Response, NextFunction } from 'express';
 import * as http from 'http';
 import * as WebSocket from 'ws';
 import cluster from 'cluster';
@@ -28,6 +28,11 @@ import { Common } from './api/common';
 import poolsUpdater from './tasks/pools-updater';
 import indexer from './indexer';
 import priceUpdater from './tasks/price-updater';
+import nodesRoutes from './api/explorer/nodes.routes';
+import channelsRoutes from './api/explorer/channels.routes';
+import generalLightningRoutes from './api/explorer/general.routes';
+import lightningStatsUpdater from './tasks/lightning/stats-updater.service';
+import nodeSyncService from './tasks/lightning/node-sync.service';
 import BlocksAuditsRepository from './repositories/BlocksAuditsRepository';
 
 class Server {
@@ -130,6 +135,11 @@ class Server {
       bisqMarkets.startBisqService();
     }
 
+    if (config.LIGHTNING.ENABLED) {
+      nodeSyncService.$startService()
+        .then(() => lightningStatsUpdater.$startService());
+    }
+
     this.server.listen(config.MEMPOOL.HTTP_PORT, () => {
       if (worker) {
         logger.info(`Mempool Server worker #${process.pid} started`);
@@ -362,6 +372,12 @@ class Server {
         .get(config.MEMPOOL.API_URL_PREFIX + 'liquid/pegs/month', routes.$getElementsPegsByMonth)
         ;
     }
+
+    if (config.LIGHTNING.ENABLED) {
+      generalLightningRoutes.initRoutes(this.app);
+      nodesRoutes.initRoutes(this.app);
+      channelsRoutes.initRoutes(this.app);
+    }
   }
 }
 

backend/src/indexer.ts

@@ -35,6 +35,8 @@ class Indexer {
     this.runIndexer = false;
     this.indexerRunning = true;
 
+    logger.debug(`Running mining indexer`);
+
     try {
       const chainValid = await blocks.$generateBlockDatabase();
       if (chainValid === false) {
@@ -54,9 +56,15 @@ class Indexer {
       this.indexerRunning = false;
       logger.err(`Indexer failed, trying again in 10 seconds. Reason: ` + (e instanceof Error ? e.message : e));
       setTimeout(() => this.reindex(), 10000);
+      this.indexerRunning = false;
+      return;
     }
 
     this.indexerRunning = false;
+
+    const runEvery = 1000 * 3600; // 1 hour
+    logger.debug(`Indexing completed. Next run planned at ${new Date(new Date().getTime() + runEvery).toUTCString()}`);
+    setTimeout(() => this.reindex(), runEvery);
   }
 
   async $resetHashratesIndexingState() {

backend/src/repositories/BlocksRepository.ts

@@ -610,6 +610,24 @@ class BlocksRepository {
       throw e;
     }
   }
+
+  /**
+   * Return the oldest block  from a consecutive chain of block from the most recent one
+   */
+  public async $getOldestConsecutiveBlock(): Promise<any> {
+    try {
+      const [rows]: any = await DB.query(`SELECT height, UNIX_TIMESTAMP(blockTimestamp) as timestamp, difficulty FROM blocks ORDER BY height DESC`);
+      for (let i = 0; i < rows.length - 1; ++i) {
+        if (rows[i].height - rows[i + 1].height > 1) {
+          return rows[i];
+        }
+      }
+      return rows[rows.length - 1];
+    } catch (e) {
+      logger.err('Cannot generate block size and weight history. Reason: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
 }
 
 export default new BlocksRepository();

backend/src/repositories/DifficultyAdjustmentsRepository.ts

@@ -46,9 +46,38 @@ class DifficultyAdjustmentsRepository {
     query += ` GROUP BY UNIX_TIMESTAMP(time) DIV ${86400}`;
 
     if (descOrder === true) {
-      query += ` ORDER BY time DESC`;
+      query += ` ORDER BY height DESC`;
     } else {
-      query += ` ORDER BY time`;
+      query += ` ORDER BY height`;
+    }
+
+    try {
+      const [rows] = await DB.query(query);
+      return rows as IndexedDifficultyAdjustment[];
+    } catch (e) {
+      logger.err(`Cannot get difficulty adjustments from the database. Reason: ` + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
+  public async $getRawAdjustments(interval: string | null, descOrder: boolean = false): Promise<IndexedDifficultyAdjustment[]> {
+    interval = Common.getSqlInterval(interval);
+
+    let query = `SELECT 
+      UNIX_TIMESTAMP(time) as time,
+      height as height,
+      difficulty as difficulty,
+      adjustment as adjustment
+      FROM difficulty_adjustments`;
+
+    if (interval) {
+      query += ` WHERE time BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW()`;
+    }
+
+    if (descOrder === true) {
+      query += ` ORDER BY height DESC`;
+    } else {
+      query += ` ORDER BY height`;
     }
 
     try {

backend/src/repositories/HashratesRepository.ts

@@ -1,6 +1,5 @@
 import { escape } from 'mysql2';
 import { Common } from '../api/common';
-import config from '../config';
 import DB from '../database';
 import logger from '../logger';
 import PoolsRepository from './PoolsRepository';
@@ -30,6 +29,32 @@ class HashratesRepository {
     }
   }
 
+  public async $getRawNetworkDailyHashrate(interval: string | null): Promise<any[]> {
+    interval = Common.getSqlInterval(interval);
+
+    let query = `SELECT
+      UNIX_TIMESTAMP(hashrate_timestamp) as timestamp,
+      avg_hashrate as avgHashrate
+      FROM hashrates`;
+
+    if (interval) {
+      query += ` WHERE hashrate_timestamp BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW()
+        AND hashrates.type = 'daily'`;
+    } else {
+      query += ` WHERE hashrates.type = 'daily'`;
+    }
+
+    query += ` ORDER by hashrate_timestamp`;
+
+    try {
+      const [rows]: any[] = await DB.query(query);
+      return rows;
+    } catch (e) {
+      logger.err('Cannot fetch network hashrate history. Reason: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+
   public async $getNetworkDailyHashrate(interval: string | null): Promise<any[]> {
     interval = Common.getSqlInterval(interval);
 

backend/src/repositories/PricesRepository.ts

@@ -4,6 +4,12 @@ import { Prices } from '../tasks/price-updater';
 
 class PricesRepository {
   public async $savePrices(time: number, prices: Prices): Promise<void> {
+    if (prices.USD === -1) {
+      // Some historical price entries have not USD prices, so we just ignore them to avoid future UX issues
+      // As of today there are only 4 (on 2013-09-05, 2013-09-19, 2013-09-12 and 2013-09-26) so that's fine
+      return;
+    }
+
     try {
       await DB.query(`
         INSERT INTO prices(time,             USD, EUR, GBP, CAD, CHF, AUD, JPY)
@@ -17,17 +23,17 @@ class PricesRepository {
   }
 
   public async $getOldestPriceTime(): Promise<number> {
-    const [oldestRow] = await DB.query(`SELECT UNIX_TIMESTAMP(time) as time from prices ORDER BY time LIMIT 1`);
+    const [oldestRow] = await DB.query(`SELECT UNIX_TIMESTAMP(time) as time from prices WHERE USD != -1 ORDER BY time LIMIT 1`);
     return oldestRow[0] ? oldestRow[0].time : 0;
   }
 
   public async $getLatestPriceTime(): Promise<number> {
-    const [oldestRow] = await DB.query(`SELECT UNIX_TIMESTAMP(time) as time from prices ORDER BY time DESC LIMIT 1`);
+    const [oldestRow] = await DB.query(`SELECT UNIX_TIMESTAMP(time) as time from prices WHERE USD != -1 ORDER BY time DESC LIMIT 1`);
     return oldestRow[0] ? oldestRow[0].time : 0;
   }
 
   public async $getPricesTimes(): Promise<number[]> {
-    const [times]: any[] = await DB.query(`SELECT UNIX_TIMESTAMP(time) as time from prices`);
+    const [times]: any[] = await DB.query(`SELECT UNIX_TIMESTAMP(time) as time from prices WHERE USD != -1`);
     return times.map(time => time.time);
   }
 }

backend/src/routes.ts

@@ -734,7 +734,7 @@ class Routes {
 
   public async $getDifficultyAdjustments(req: Request, res: Response) {
     try {
-      const difficulty = await DifficultyAdjustmentsRepository.$getAdjustments(req.params.interval, true);
+      const difficulty = await DifficultyAdjustmentsRepository.$getRawAdjustments(req.params.interval, true);
       res.header('Pragma', 'public');
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 300).toUTCString());
@@ -790,7 +790,7 @@ class Routes {
 
   public async getBlocks(req: Request, res: Response) {
     try {
-      if (['mainnet', 'testnet', 'signet', 'regtest'].includes(config.MEMPOOL.NETWORK)) { // Bitcoin
+      if (['mainnet', 'testnet', 'signet'].includes(config.MEMPOOL.NETWORK)) { // Bitcoin
         const height = req.params.height === undefined ? undefined : parseInt(req.params.height, 10);
         res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
         res.json(await blocks.$getBlocks(height, 15));

backend/src/tasks/lightning/node-sync.service.ts

@@ -0,0 +1,396 @@
+import { chanNumber } from 'bolt07';
+import DB from '../../database';
+import logger from '../../logger';
+import channelsApi from '../../api/explorer/channels.api';
+import bitcoinClient from '../../api/bitcoin/bitcoin-client';
+import bitcoinApi from '../../api/bitcoin/bitcoin-api-factory';
+import config from '../../config';
+import { IEsploraApi } from '../../api/bitcoin/esplora-api.interface';
+import lightningApi from '../../api/lightning/lightning-api-factory';
+import { ILightningApi } from '../../api/lightning/lightning-api.interface';
+
+class NodeSyncService {
+  constructor() {}
+
+  public async $startService() {
+    logger.info('Starting node sync service');
+
+    await this.$runUpdater();
+
+    setInterval(async () => {
+      await this.$runUpdater();
+    }, 1000 * 60 * 60);
+  }
+
+  private async $runUpdater() {
+    try {
+      logger.info(`Updating nodes and channels...`);
+
+      const networkGraph = await lightningApi.$getNetworkGraph();
+
+      for (const node of networkGraph.nodes) {
+        await this.$saveNode(node);
+      }
+      logger.info(`Nodes updated.`);
+
+      await this.$setChannelsInactive();
+
+      for (const channel of networkGraph.channels) {
+        await this.$saveChannel(channel);
+      }
+      logger.info(`Channels updated.`);
+
+      await this.$findInactiveNodesAndChannels();
+      await this.$lookUpCreationDateFromChain();
+      await this.$updateNodeFirstSeen();
+      await this.$scanForClosedChannels();
+      await this.$runClosedChannelsForensics();
+
+    } catch (e) {
+      logger.err('$updateNodes() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+
+  // This method look up the creation date of the earliest channel of the node
+  // and update the node to that date in order to get the earliest first seen date
+  private async $updateNodeFirstSeen() {
+    try {
+      const [nodes]: any[] = await DB.query(`SELECT nodes.public_key, UNIX_TIMESTAMP(nodes.first_seen) AS first_seen, (SELECT UNIX_TIMESTAMP(created) FROM channels WHERE channels.node1_public_key = nodes.public_key ORDER BY created ASC LIMIT 1) AS created1, (SELECT UNIX_TIMESTAMP(created) FROM channels WHERE channels.node2_public_key = nodes.public_key ORDER BY created ASC LIMIT 1) AS created2 FROM nodes`);
+      for (const node of nodes) {
+        let lowest = 0;
+        if (node.created1) {
+          if (node.created2 && node.created2 < node.created1) {
+            lowest = node.created2;
+          } else {
+            lowest = node.created1;
+          }
+        } else if (node.created2) {
+          lowest = node.created2;
+        }
+        if (lowest && lowest < node.first_seen) {
+          const query = `UPDATE nodes SET first_seen = FROM_UNIXTIME(?) WHERE public_key = ?`;
+          const params = [lowest, node.public_key];
+          await DB.query(query, params);
+        }
+      }
+      logger.info(`Node first seen dates scan complete.`);
+    } catch (e) {
+      logger.err('$updateNodeFirstSeen() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+
+  private async $lookUpCreationDateFromChain() {
+    logger.info(`Running channel creation date lookup...`);
+    try {
+      const channels = await channelsApi.$getChannelsWithoutCreatedDate();
+      for (const channel of channels) {
+        const transaction = await bitcoinClient.getRawTransaction(channel.transaction_id, 1);
+        await DB.query(`UPDATE channels SET created = FROM_UNIXTIME(?) WHERE channels.id = ?`, [transaction.blocktime, channel.id]);
+      }
+      logger.info(`Channel creation dates scan complete.`);
+    } catch (e) {
+      logger.err('$setCreationDateFromChain() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+
+  // Looking for channels whos nodes are inactive
+  private async $findInactiveNodesAndChannels(): Promise<void> {
+    logger.info(`Running inactive channels scan...`);
+
+    try {
+      // @ts-ignore
+      const [channels]: [ILightningApi.Channel[]] = await DB.query(`SELECT channels.id FROM channels WHERE channels.status = 1 AND ((SELECT COUNT(*) FROM nodes WHERE nodes.public_key = channels.node1_public_key) = 0 OR (SELECT COUNT(*) FROM nodes WHERE nodes.public_key = channels.node2_public_key) = 0)`);
+
+      for (const channel of channels) {
+        await this.$updateChannelStatus(channel.id, 0);
+      }
+      logger.info(`Inactive channels scan complete.`);
+    } catch (e) {
+      logger.err('$findInactiveNodesAndChannels() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+
+  private async $scanForClosedChannels(): Promise<void> {
+    try {
+      logger.info(`Starting closed channels scan...`);
+      const channels = await channelsApi.$getChannelsByStatus(0);
+      for (const channel of channels) {
+        const spendingTx = await bitcoinApi.$getOutspend(channel.transaction_id, channel.transaction_vout);
+        if (spendingTx.spent === true && spendingTx.status?.confirmed === true) {
+          logger.debug('Marking channel: ' + channel.id + ' as closed.');
+          await DB.query(`UPDATE channels SET status = 2, closing_date = FROM_UNIXTIME(?) WHERE id = ?`,
+            [spendingTx.status.block_time, channel.id]);
+          if (spendingTx.txid && !channel.closing_transaction_id) {
+            await DB.query(`UPDATE channels SET closing_transaction_id = ? WHERE id = ?`, [spendingTx.txid, channel.id]);
+          }
+        }
+      }
+      logger.info(`Closed channels scan complete.`);
+    } catch (e) {
+      logger.err('$scanForClosedChannels() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+
+  /*
+    1. Mutually closed
+    2. Forced closed
+    3. Forced closed with penalty
+  */
+
+  private async $runClosedChannelsForensics(): Promise<void> {
+    if (!config.ESPLORA.REST_API_URL) {
+      return;
+    }
+    try {
+      logger.info(`Started running closed channel forensics...`);
+      const channels = await channelsApi.$getClosedChannelsWithoutReason();
+      for (const channel of channels) {
+        let reason = 0;
+        // Only Esplora backend can retrieve spent transaction outputs
+        const outspends = await bitcoinApi.$getOutspends(channel.closing_transaction_id);
+        const lightningScriptReasons: number[] = [];
+        for (const outspend of outspends) {
+          if (outspend.spent && outspend.txid) {
+            const spendingTx = await bitcoinApi.$getRawTransaction(outspend.txid);
+            const lightningScript = this.findLightningScript(spendingTx.vin[outspend.vin || 0]);
+            lightningScriptReasons.push(lightningScript);
+          }
+        }
+        if (lightningScriptReasons.length === outspends.length
+          && lightningScriptReasons.filter((r) => r === 1).length === outspends.length) {
+          reason = 1;
+        } else {
+          const filteredReasons = lightningScriptReasons.filter((r) => r !== 1);
+          if (filteredReasons.length) {
+            if (filteredReasons.some((r) => r === 2 || r === 4)) {
+              reason = 3;
+            } else {
+              reason = 2;
+            }
+          } else {
+            /*
+              We can detect a commitment transaction (force close) by reading Sequence and Locktime
+              https://github.com/lightning/bolts/blob/master/03-transactions.md#commitment-transaction
+            */
+            const closingTx = await bitcoinApi.$getRawTransaction(channel.closing_transaction_id);
+            const sequenceHex: string = closingTx.vin[0].sequence.toString(16);
+            const locktimeHex: string = closingTx.locktime.toString(16);
+            if (sequenceHex.substring(0, 2) === '80' && locktimeHex.substring(0, 2) === '20') {
+              reason = 2; // Here we can't be sure if it's a penalty or not
+            } else {
+              reason = 1;
+            }
+          }
+        }
+        if (reason) {
+          logger.debug('Setting closing reason ' + reason + ' for channel: ' + channel.id + '.');
+          await DB.query(`UPDATE channels SET closing_reason = ? WHERE id = ?`, [reason, channel.id]);
+        }
+      }
+      logger.info(`Closed channels forensics scan complete.`);
+    } catch (e) {
+      logger.err('$runClosedChannelsForensics() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+
+  private findLightningScript(vin: IEsploraApi.Vin): number {
+    const topElement = vin.witness[vin.witness.length - 2];
+      if (/^OP_IF OP_PUSHBYTES_33 \w{66} OP_ELSE OP_PUSH(NUM_\d+|BYTES_(1 \w{2}|2 \w{4})) OP_CSV OP_DROP OP_PUSHBYTES_33 \w{66} OP_ENDIF OP_CHECKSIG$/.test(vin.inner_witnessscript_asm)) {
+        // https://github.com/lightning/bolts/blob/master/03-transactions.md#commitment-transaction-outputs
+        if (topElement === '01') {
+          // top element is '01' to get in the revocation path
+          // 'Revoked Lightning Force Close';
+          // Penalty force closed
+          return 2;
+        } else {
+          // top element is '', this is a delayed to_local output
+          // 'Lightning Force Close';
+          return 3;
+        }
+      } else if (
+        /^OP_DUP OP_HASH160 OP_PUSHBYTES_20 \w{40} OP_EQUAL OP_IF OP_CHECKSIG OP_ELSE OP_PUSHBYTES_33 \w{66} OP_SWAP OP_SIZE OP_PUSHBYTES_1 20 OP_EQUAL OP_NOTIF OP_DROP OP_PUSHNUM_2 OP_SWAP OP_PUSHBYTES_33 \w{66} OP_PUSHNUM_2 OP_CHECKMULTISIG OP_ELSE OP_HASH160 OP_PUSHBYTES_20 \w{40} OP_EQUALVERIFY OP_CHECKSIG OP_ENDIF (OP_PUSHNUM_1 OP_CSV OP_DROP |)OP_ENDIF$/.test(vin.inner_witnessscript_asm) ||
+        /^OP_DUP OP_HASH160 OP_PUSHBYTES_20 \w{40} OP_EQUAL OP_IF OP_CHECKSIG OP_ELSE OP_PUSHBYTES_33 \w{66} OP_SWAP OP_SIZE OP_PUSHBYTES_1 20 OP_EQUAL OP_IF OP_HASH160 OP_PUSHBYTES_20 \w{40} OP_EQUALVERIFY OP_PUSHNUM_2 OP_SWAP OP_PUSHBYTES_33 \w{66} OP_PUSHNUM_2 OP_CHECKMULTISIG OP_ELSE OP_DROP OP_PUSHBYTES_3 \w{6} OP_CLTV OP_DROP OP_CHECKSIG OP_ENDIF (OP_PUSHNUM_1 OP_CSV OP_DROP |)OP_ENDIF$/.test(vin.inner_witnessscript_asm)
+      ) {
+        // https://github.com/lightning/bolts/blob/master/03-transactions.md#offered-htlc-outputs
+        // https://github.com/lightning/bolts/blob/master/03-transactions.md#received-htlc-outputs
+        if (topElement.length === 66) {
+          // top element is a public key
+          // 'Revoked Lightning HTLC'; Penalty force closed
+          return 4;
+        } else if (topElement) {
+          // top element is a preimage
+          // 'Lightning HTLC';
+          return 5;
+        } else {
+          // top element is '' to get in the expiry of the script
+          // 'Expired Lightning HTLC';
+          return 6;
+        }
+      } else if (/^OP_PUSHBYTES_33 \w{66} OP_CHECKSIG OP_IFDUP OP_NOTIF OP_PUSHNUM_16 OP_CSV OP_ENDIF$/.test(vin.inner_witnessscript_asm)) {
+        // https://github.com/lightning/bolts/blob/master/03-transactions.md#to_local_anchor-and-to_remote_anchor-output-option_anchors
+        if (topElement) {
+          // top element is a signature
+          // 'Lightning Anchor';
+          return 7;
+        } else {
+          // top element is '', it has been swept after 16 blocks
+          // 'Swept Lightning Anchor';
+          return 8;
+        }
+      }
+      return 1;
+  }
+
+  private async $saveChannel(channel: ILightningApi.Channel): Promise<void> {
+    const fromChannel = chanNumber({ channel: channel.id }).number;
+
+    try {
+      const query = `INSERT INTO channels
+        (
+          id,
+          short_id,
+          capacity,
+          transaction_id,
+          transaction_vout,
+          updated_at,
+          status,
+          node1_public_key,
+          node1_base_fee_mtokens,
+          node1_cltv_delta,
+          node1_fee_rate,
+          node1_is_disabled,
+          node1_max_htlc_mtokens,
+          node1_min_htlc_mtokens,
+          node1_updated_at,
+          node2_public_key,
+          node2_base_fee_mtokens,
+          node2_cltv_delta,
+          node2_fee_rate,
+          node2_is_disabled,
+          node2_max_htlc_mtokens,
+          node2_min_htlc_mtokens,
+          node2_updated_at
+        )
+        VALUES (?, ?, ?, ?, ?, ?, 1, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+        ON DUPLICATE KEY UPDATE
+          capacity = ?,
+          updated_at = ?,
+          status = 1,
+          node1_public_key = ?,
+          node1_base_fee_mtokens = ?,
+          node1_cltv_delta = ?,
+          node1_fee_rate = ?,
+          node1_is_disabled = ?,
+          node1_max_htlc_mtokens = ?,
+          node1_min_htlc_mtokens = ?,
+          node1_updated_at = ?,
+          node2_public_key = ?,
+          node2_base_fee_mtokens = ?,
+          node2_cltv_delta = ?,
+          node2_fee_rate = ?,
+          node2_is_disabled = ?,
+          node2_max_htlc_mtokens = ?,
+          node2_min_htlc_mtokens = ?,
+          node2_updated_at = ?
+        ;`;
+
+      await DB.query(query, [
+        fromChannel,
+        channel.id,
+        channel.capacity,
+        channel.transaction_id,
+        channel.transaction_vout,
+        channel.updated_at ? this.utcDateToMysql(channel.updated_at) : 0,
+        channel.policies[0].public_key,
+        channel.policies[0].base_fee_mtokens,
+        channel.policies[0].cltv_delta,
+        channel.policies[0].fee_rate,
+        channel.policies[0].is_disabled,
+        channel.policies[0].max_htlc_mtokens,
+        channel.policies[0].min_htlc_mtokens,
+        channel.policies[0].updated_at ? this.utcDateToMysql(channel.policies[0].updated_at) : 0,
+        channel.policies[1].public_key,
+        channel.policies[1].base_fee_mtokens,
+        channel.policies[1].cltv_delta,
+        channel.policies[1].fee_rate,
+        channel.policies[1].is_disabled,
+        channel.policies[1].max_htlc_mtokens,
+        channel.policies[1].min_htlc_mtokens,
+        channel.policies[1].updated_at ? this.utcDateToMysql(channel.policies[1].updated_at) : 0,
+        channel.capacity,
+        channel.updated_at ? this.utcDateToMysql(channel.updated_at) : 0,
+        channel.policies[0].public_key,
+        channel.policies[0].base_fee_mtokens,
+        channel.policies[0].cltv_delta,
+        channel.policies[0].fee_rate,
+        channel.policies[0].is_disabled,
+        channel.policies[0].max_htlc_mtokens,
+        channel.policies[0].min_htlc_mtokens,
+        channel.policies[0].updated_at ? this.utcDateToMysql(channel.policies[0].updated_at) : 0,
+        channel.policies[1].public_key,
+        channel.policies[1].base_fee_mtokens,
+        channel.policies[1].cltv_delta,
+        channel.policies[1].fee_rate,
+        channel.policies[1].is_disabled,
+        channel.policies[1].max_htlc_mtokens,
+        channel.policies[1].min_htlc_mtokens,
+        channel.policies[1].updated_at ? this.utcDateToMysql(channel.policies[1].updated_at) : 0,
+      ]);
+    } catch (e) {
+      logger.err('$saveChannel() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+
+  private async $updateChannelStatus(channelShortId: string, status: number): Promise<void> {
+    try {
+      await DB.query(`UPDATE channels SET status = ? WHERE id = ?`, [status, channelShortId]);
+    } catch (e) {
+      logger.err('$updateChannelStatus() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+
+  private async $setChannelsInactive(): Promise<void> {
+    try {
+      await DB.query(`UPDATE channels SET status = 0 WHERE status = 1`);
+    } catch (e) {
+      logger.err('$setChannelsInactive() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+
+  private async $saveNode(node: ILightningApi.Node): Promise<void> {
+    try {
+      const updatedAt = node.updated_at ? this.utcDateToMysql(node.updated_at) : '0000-00-00 00:00:00';
+      const sockets = node.sockets.join(',');
+      const query = `INSERT INTO nodes(
+          public_key,
+          first_seen,
+          updated_at,
+          alias,
+          color,
+          sockets
+        )
+        VALUES (?, NOW(), ?, ?, ?, ?) ON DUPLICATE KEY UPDATE updated_at = ?, alias = ?, color = ?, sockets = ?;`;
+
+      await DB.query(query, [
+        node.public_key,
+        updatedAt,
+        node.alias,
+        node.color,
+        sockets,
+        updatedAt,
+        node.alias,
+        node.color,
+        sockets,
+      ]);
+    } catch (e) {
+      logger.err('$saveNode() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+
+  private utcDateToMysql(dateString: string): string {
+    const d = new Date(Date.parse(dateString));
+    return d.toISOString().split('T')[0] + ' ' + d.toTimeString().split(' ')[0];
+  }
+}
+
+export default new NodeSyncService();

backend/src/tasks/lightning/stats-updater.service.ts

@@ -0,0 +1,276 @@
+
+import DB from '../../database';
+import logger from '../../logger';
+import lightningApi from '../../api/lightning/lightning-api-factory';
+import channelsApi from '../../api/explorer/channels.api';
+import * as net from 'net';
+
+class LightningStatsUpdater {
+  constructor() {}
+
+  public async $startService() {
+    logger.info('Starting Lightning Stats service');
+    let isInSync = false;
+    let error: any;
+    try {
+      error = null;
+      isInSync = await this.$lightningIsSynced();
+    } catch (e) {
+      error = e;
+    }
+    if (!isInSync) {
+      if (error) {
+        logger.warn('Was not able to fetch Lightning Node status: ' + (error instanceof Error ? error.message : error) + '. Retrying in 1 minute...');
+      } else {
+        logger.notice('The Lightning graph is not yet in sync. Retrying in 1 minute...');
+      }
+      setTimeout(() => this.$startService(), 60 * 1000);
+      return;
+    }
+
+    const now = new Date();
+    const nextHourInterval = new Date(now.getFullYear(), now.getMonth(), now.getDate(), Math.floor(now.getHours() / 1) + 1, 0, 0, 0);
+    const difference = nextHourInterval.getTime() - now.getTime();
+
+    setTimeout(() => {
+      setInterval(async () => {
+        await this.$runTasks();
+      }, 1000 * 60 * 60);
+    }, difference);
+
+    await this.$runTasks();
+  }
+
+  private async $lightningIsSynced(): Promise<boolean> {
+    const nodeInfo = await lightningApi.$getInfo();
+    return nodeInfo.is_synced_to_chain && nodeInfo.is_synced_to_graph;
+  }
+
+  private async $runTasks() {
+    await this.$populateHistoricalData();
+    await this.$logLightningStatsDaily();
+    await this.$logNodeStatsDaily();
+  }
+
+  private async $logNodeStatsDaily() {
+    const currentDate = new Date().toISOString().split('T')[0];
+    try {
+      const [state]: any = await DB.query(`SELECT string FROM state WHERE name = 'last_node_stats'`);
+      // Only store once per day
+      if (state[0].string === currentDate) {
+        return;
+      }
+
+      logger.info(`Running daily node stats update...`);
+
+      const query = `SELECT nodes.public_key, c1.channels_count_left, c2.channels_count_right, c1.channels_capacity_left, c2.channels_capacity_right FROM nodes LEFT JOIN (SELECT node1_public_key, COUNT(id) AS channels_count_left, SUM(capacity) AS channels_capacity_left FROM channels WHERE channels.status < 2 GROUP BY node1_public_key) c1 ON c1.node1_public_key = nodes.public_key LEFT JOIN (SELECT node2_public_key, COUNT(id) AS channels_count_right, SUM(capacity) AS channels_capacity_right FROM channels WHERE channels.status < 2 GROUP BY node2_public_key) c2 ON c2.node2_public_key = nodes.public_key`;
+      const [nodes]: any = await DB.query(query);
+
+      // First run we won't have any nodes yet
+      if (nodes.length < 10) {
+        return;
+      }
+
+      for (const node of nodes) {
+        await DB.query(
+          `INSERT INTO node_stats(public_key, added, capacity, channels) VALUES (?, NOW(), ?, ?)`,
+          [node.public_key, (parseInt(node.channels_capacity_left || 0, 10)) + (parseInt(node.channels_capacity_right || 0, 10)),
+            node.channels_count_left + node.channels_count_right]);
+      }
+      await DB.query(`UPDATE state SET string = ? WHERE name = 'last_node_stats'`, [currentDate]);
+      logger.info('Daily node stats has updated.');
+    } catch (e) {
+      logger.err('$logNodeStatsDaily() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+
+  // We only run this on first launch
+  private async $populateHistoricalData() {
+    const startTime = '2018-01-13';
+    try {
+      const [rows]: any = await DB.query(`SELECT COUNT(*) FROM lightning_stats`);
+      // Only store once per day
+      if (rows[0]['COUNT(*)'] > 0) {
+        return;
+      }
+      logger.info(`Running historical stats population...`);
+
+      const [channels]: any = await DB.query(`SELECT capacity, created, closing_date FROM channels ORDER BY created ASC`);
+
+      let date: Date = new Date(startTime);
+      const currentDate = new Date();
+
+      while (date < currentDate) {
+        let totalCapacity = 0;
+        let channelsCount = 0;
+        for (const channel of channels) {
+          if (new Date(channel.created) > date) {
+            break;
+          }
+          if (channel.closing_date !== null && new Date(channel.closing_date) < date) {
+            continue;
+          }
+          totalCapacity += channel.capacity;
+          channelsCount++;
+        }
+
+        const query = `INSERT INTO lightning_stats(
+          added,
+          channel_count,
+          node_count,
+          total_capacity,
+          tor_nodes,
+          clearnet_nodes,
+          unannounced_nodes
+        )
+        VALUES (FROM_UNIXTIME(?), ?, ?, ?, ?, ?, ?)`;
+
+        await DB.query(query, [
+          date.getTime() / 1000,
+          channelsCount,
+          0,
+          totalCapacity,
+          0,
+          0,
+          0
+        ]);
+
+        // Add one day and continue
+        date.setDate(date.getDate() + 1);
+      }
+
+      const [nodes]: any = await DB.query(`SELECT first_seen, sockets FROM nodes ORDER BY first_seen ASC`);
+      date = new Date(startTime);
+
+      while (date < currentDate) {
+        let nodeCount = 0;
+        let clearnetNodes = 0;
+        let torNodes = 0;
+        let unannouncedNodes = 0;
+        for (const node of nodes) {
+          if (new Date(node.first_seen) > date) {
+            break;
+          }
+          nodeCount++;
+
+          const sockets = node.sockets.split(',');
+          let isUnnanounced = true;
+          for (const socket of sockets) {
+            const hasOnion = socket.indexOf('.onion') !== -1;
+            if (hasOnion) {
+              torNodes++;
+              isUnnanounced = false;
+            }
+            const hasClearnet = [4, 6].includes(net.isIP(socket.split(':')[0]));
+            if (hasClearnet) {
+              clearnetNodes++;
+              isUnnanounced = false;
+            }
+          }
+          if (isUnnanounced) {
+            unannouncedNodes++;
+          }
+        }
+
+        const query = `UPDATE lightning_stats SET node_count = ?, tor_nodes = ?, clearnet_nodes = ?, unannounced_nodes = ? WHERE added = FROM_UNIXTIME(?)`;
+
+        await DB.query(query, [
+          nodeCount,
+          torNodes,
+          clearnetNodes,
+          unannouncedNodes,
+          date.getTime() / 1000,
+        ]);
+
+        // Add one day and continue
+        date.setDate(date.getDate() + 1);
+      }
+
+      logger.info('Historical stats populated.');
+    } catch (e) {
+      logger.err('$populateHistoricalData() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+
+  private async $logLightningStatsDaily() {
+    const currentDate = new Date().toISOString().split('T')[0];
+    try {
+      const [state]: any = await DB.query(`SELECT string FROM state WHERE name = 'last_node_stats'`);
+      // Only store once per day
+      if (state[0].string === currentDate) {
+        return;
+      }
+
+      logger.info(`Running lightning daily stats log...`);  
+
+      const networkGraph = await lightningApi.$getNetworkGraph();
+      let total_capacity = 0;
+      for (const channel of networkGraph.channels) {
+        if (channel.capacity) {
+          total_capacity += channel.capacity;
+        }
+      }
+
+      let clearnetNodes = 0;
+      let torNodes = 0;
+      let unannouncedNodes = 0;
+      for (const node of networkGraph.nodes) {
+        let isUnnanounced = true;
+        for (const socket of node.sockets) {
+          const hasOnion = socket.indexOf('.onion') !== -1;
+          if (hasOnion) {
+            torNodes++;
+            isUnnanounced = false;
+          }
+          const hasClearnet = [4, 6].includes(net.isIP(socket.split(':')[0]));
+          if (hasClearnet) {
+            clearnetNodes++;
+            isUnnanounced = false;
+          }
+        }
+        if (isUnnanounced) {
+          unannouncedNodes++;
+        }
+      }
+
+      const channelStats = await channelsApi.$getChannelsStats();
+
+      const query = `INSERT INTO lightning_stats(
+          added,
+          channel_count,
+          node_count,
+          total_capacity,
+          tor_nodes,
+          clearnet_nodes,
+          unannounced_nodes,
+          avg_capacity,
+          avg_fee_rate,
+          avg_base_fee_mtokens,
+          med_capacity,
+          med_fee_rate,
+          med_base_fee_mtokens
+        )
+        VALUES (NOW(), ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`;
+
+      await DB.query(query, [
+        networkGraph.channels.length,
+        networkGraph.nodes.length,
+        total_capacity,
+        torNodes,
+        clearnetNodes,
+        unannouncedNodes,
+        channelStats.avgCapacity,
+        channelStats.avgFeeRate,
+        channelStats.avgBaseFee,
+        channelStats.medianCapacity,
+        channelStats.medianFeeRate,
+        channelStats.medianBaseFee,
+      ]);
+      logger.info(`Lightning daily stats done.`);
+    } catch (e) {
+      logger.err('$logLightningStatsDaily() error: ' + (e instanceof Error ? e.message : e));
+    }
+  }
+}
+
+export default new LightningStatsUpdater();

docker/backend/mempool-config.json

@@ -20,7 +20,8 @@
     "USER_AGENT": "__MEMPOOL_USER_AGENT__",
     "STDOUT_LOG_MIN_PRIORITY": "__MEMPOOL_STDOUT_LOG_MIN_PRIORITY__",
     "INDEXING_BLOCKS_AMOUNT": __MEMPOOL_INDEXING_BLOCKS_AMOUNT__,
-    "BLOCKS_SUMMARIES_INDEXING": __MEMPOOL_BLOCKS_SUMMARIES_INDEXING__
+    "BLOCKS_SUMMARIES_INDEXING": __MEMPOOL_BLOCKS_SUMMARIES_INDEXING__,
+    "AUTOMATIC_BLOCK_REINDEXING": __MEMPOOL_AUTOMATIC_BLOCK_REINDEXING__
   },
   "CORE_RPC": {
     "HOST": "__CORE_RPC_HOST__",

docker/backend/start.sh

@@ -22,6 +22,8 @@ __MEMPOOL_EXTERNAL_MAX_RETRY__=${MEMPOOL_EXTERNAL_MAX_RETRY:=1}
 __MEMPOOL_EXTERNAL_RETRY_INTERVAL__=${MEMPOOL_EXTERNAL_RETRY_INTERVAL:=0}
 __MEMPOOL_USER_AGENT__=${MEMPOOL_USER_AGENT:=mempool}
 __MEMPOOL_STDOUT_LOG_MIN_PRIORITY__=${MEMPOOL_STDOUT_LOG_MIN_PRIORITY:=info}
+__MEMPOOL_INDEXING_BLOCKS_AMOUNT__=${MEMPOOL_INDEXING_BLOCKS_AMOUNT:=false}
+__MEMPOOL_AUTOMATIC_BLOCK_REINDEXING__=${MEMPOOL_AUTOMATIC_BLOCK_REINDEXING:=false}
 
 # CORE_RPC
 __CORE_RPC_HOST__=${CORE_RPC_HOST:=127.0.0.1}
@@ -110,6 +112,8 @@ sed -i "s!__MEMPOOL_EXTERNAL_MAX_RETRY__!${__MEMPOOL_EXTERNAL_MAX_RETRY__}!g" me
 sed -i "s!__MEMPOOL_EXTERNAL_RETRY_INTERVAL__!${__MEMPOOL_EXTERNAL_RETRY_INTERVAL__}!g" mempool-config.json
 sed -i "s!__MEMPOOL_USER_AGENT__!${__MEMPOOL_USER_AGENT__}!g" mempool-config.json
 sed -i "s/__MEMPOOL_STDOUT_LOG_MIN_PRIORITY__/${__MEMPOOL_STDOUT_LOG_MIN_PRIORITY__}/g" mempool-config.json
+sed -i "s/__MEMPOOL_INDEXING_BLOCKS_AMOUNT__/${__MEMPOOL_INDEXING_BLOCKS_AMOUNT__}/g" mempool-config.json
+sed -i "s/__MEMPOOL_AUTOMATIC_BLOCK_REINDEXING__/${__MEMPOOL_AUTOMATIC_BLOCK_REINDEXING__}/g" mempool-config.json
 
 sed -i "s/__CORE_RPC_HOST__/${__CORE_RPC_HOST__}/g" mempool-config.json
 sed -i "s/__CORE_RPC_PORT__/${__CORE_RPC_PORT__}/g" mempool-config.json

frontend/cypress/e2e/mainnet/mainnet.spec.ts

@@ -121,20 +121,20 @@ describe('Mainnet', () => {
         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('app-search-results 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('app-search-results 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('app-search-results button.dropdown-item').should('have.length', 1)
         });
 
-        cy.get('ngb-typeahead-window button.dropdown-item.active').click().then(() => {
+        cy.get('app-search-results 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');
@@ -145,8 +145,8 @@ describe('Mainnet', () => {
         it(`allows searching for partial case insensitive bech32m addresses: ${searchTerm}`, () => {
           cy.visit('/');
           cy.get('.search-box-container > .form-control').type(searchTerm).then(() => {
-            cy.get('ngb-typeahead-window button.dropdown-item').should('have.length', 1);
+            cy.get('app-search-results button.dropdown-item').should('have.length', 1);
-            cy.get('ngb-typeahead-window button.dropdown-item.active').click().then(() => {
+            cy.get('app-search-results button.dropdown-item.active').click().then(() => {
               cy.url().should('include', '/address/bc1pqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqsyjer9e');
               cy.waitForSkeletonGone();
               cy.get('.text-center').should('not.have.text', 'Invalid Bitcoin address');
@@ -159,8 +159,8 @@ describe('Mainnet', () => {
         it(`allows searching for partial case insensitive bech32 addresses: ${searchTerm}`, () => {
           cy.visit('/');
           cy.get('.search-box-container > .form-control').type(searchTerm).then(() => {
-            cy.get('ngb-typeahead-window button.dropdown-item').should('have.length', 1);
+            cy.get('app-search-results button.dropdown-item').should('have.length', 1);
-            cy.get('ngb-typeahead-window button.dropdown-item.active').click().then(() => {
+            cy.get('app-search-results button.dropdown-item.active').click().then(() => {
               cy.url().should('include', '/address/bc1q000375vxcuf5v04lmwy22vy2thvhqkxghgq7dy');
               cy.waitForSkeletonGone();
               cy.get('.text-center').should('not.have.text', 'Invalid Bitcoin address');

frontend/mempool-frontend-config.sample.json

@@ -16,5 +16,6 @@
   "MEMPOOL_WEBSITE_URL": "https://mempool.space",
   "LIQUID_WEBSITE_URL": "https://liquid.network",
   "BISQ_WEBSITE_URL": "https://bisq.markets",
-  "MINING_DASHBOARD": true
+  "MINING_DASHBOARD": true,
+  "LIGHTNING": false
 }

frontend/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "mempool-frontend",
-  "version": "2.4.1-dev",
+  "version": "2.5.0-dev",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "mempool-frontend",
-      "version": "2.4.1-dev",
+      "version": "2.5.0-dev",
       "license": "GNU Affero General Public License v3.0",
       "dependencies": {
         "@angular-devkit/build-angular": "~13.3.7",

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mempool-frontend",
-  "version": "2.4.1-dev",
+  "version": "2.5.0-dev",
   "description": "Bitcoin mempool visualizer and blockchain explorer backend",
   "license": "GNU Affero General Public License v3.0",
   "homepage": "https://mempool.space",

frontend/proxy.conf.local.js

@@ -102,6 +102,16 @@ if (configContent && configContent.BASE_MODULE === 'bisq') {
 }
 
 PROXY_CONFIG.push(...[
+  {
+    context: ['/testnet/api/v1/lightning/**'],
+    target: `http://localhost:8999`,
+    secure: false,
+    changeOrigin: true,
+    proxyTimeout: 30000,
+    pathRewrite: {
+        "^/testnet": ""
+    },
+  },
   {
     context: ['/api/v1/**'],
     target: `http://localhost:8999`,

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

@@ -96,6 +96,10 @@ let routes: Routes = [
             path: 'api',
             loadChildren: () => import('./docs/docs.module').then(m => m.DocsModule)
           },
+          {
+            path: 'lightning',
+            loadChildren: () => import('./lightning/lightning.module').then(m => m.LightningModule)
+          },
         ],
       },
       {
@@ -186,6 +190,10 @@ let routes: Routes = [
             path: 'api',
             loadChildren: () => import('./docs/docs.module').then(m => m.DocsModule)
           },
+          {
+            path: 'lightning',
+            loadChildren: () => import('./lightning/lightning.module').then(m => m.LightningModule)
+          },
         ],
       },
       {
@@ -273,6 +281,10 @@ let routes: Routes = [
         path: 'api',
         loadChildren: () => import('./docs/docs.module').then(m => m.DocsModule)
       },
+      {
+        path: 'lightning',
+        loadChildren: () => import('./lightning/lightning.module').then(m => m.LightningModule)
+      },
     ],
   },
   {

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

@@ -1,4 +1,13 @@
-<span
+<a *ngIf="channel; else default" [routerLink]="['/lightning/channel' | relativeUrl, channel.id]">
+  <span
     *ngIf="label"
     class="badge badge-pill badge-warning"
->{{ label }}</span>
+  >{{ label }}</span>
+</a>
+
+<ng-template #default>
+  <span
+    *ngIf="label"
+    class="badge badge-pill badge-warning"
+  >{{ label }}</span>
+</ng-template>

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

@@ -1,4 +1,4 @@
-import { Component, OnInit, ChangeDetectionStrategy, Input } from '@angular/core';
+import { Component, ChangeDetectionStrategy, Input, OnChanges } from '@angular/core';
 import { Vin, Vout } from '../../interfaces/electrs.interface';
 import { StateService } from 'src/app/services/state.service';
 
@@ -8,11 +8,12 @@ import { StateService } from 'src/app/services/state.service';
   styleUrls: ['./address-labels.component.scss'],
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class AddressLabelsComponent implements OnInit {
+export class AddressLabelsComponent implements OnChanges {
   network = '';
 
   @Input() vin: Vin;
   @Input() vout: Vout;
+  @Input() channel: any;
 
   label?: string;
 
@@ -22,14 +23,21 @@ export class AddressLabelsComponent implements OnInit {
     this.network = stateService.network;
   }
 
-  ngOnInit() {
+  ngOnChanges() {
-    if (this.vin) {
+    if (this.channel) {
+      this.handleChannel();
+    } else if (this.vin) {
       this.handleVin();
     } else if (this.vout) {
       this.handleVout();
     }
   }
 
+  handleChannel() {
+    const type = this.vout ? 'open' : 'close';
+    this.label = `Channel ${type}: ${this.channel.node_left.alias} <> ${this.channel.node_right.alias}`;
+  }
+
   handleVin() {
     if (this.vin.inner_witnessscript_asm) {
       if (this.vin.inner_witnessscript_asm.indexOf('OP_DEPTH OP_PUSHNUM_12 OP_EQUAL OP_IF OP_PUSHNUM_11') === 0) {

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

@@ -55,10 +55,7 @@
               <tr>
                 <td i18n="block.timestamp">Timestamp</td>
                 <td>
-                  &lrm;{{ block.timestamp * 1000 | date:'yyyy-MM-dd HH:mm' }}
+                  <app-timestamp [unixTime]="block.timestamp"></app-timestamp>
-                  <div class="lg-inline">
-                    <i class="symbol">(<app-time-since [time]="block.timestamp" [fastRender]="true"></app-time-since>)</i>
-                  </div>
                 </td>
               </tr>
               <tr>

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

@@ -0,0 +1,3 @@
+<span [style]="change >= 0 ? 'color: #42B747' : 'color: #B74242'">
+  {{ change >= 0 ? '+' : '' }}{{ change | amountShortener }}%
+</span>

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

@@ -0,0 +1,25 @@
+import { ChangeDetectionStrategy, Component, Input, OnChanges } from '@angular/core';
+
+@Component({
+  selector: 'app-change',
+  templateUrl: './change.component.html',
+  styleUrls: ['./change.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class ChangeComponent implements OnChanges {
+  @Input() current: number;
+  @Input() previous: number;
+
+  change: number;
+
+  constructor() { }
+
+  ngOnChanges(): void {
+    if (!this.previous) {
+      this.change = 0;
+    } else {
+      this.change = (this.current - this.previous) / this.previous * 100;
+    }
+  }
+
+}

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

@@ -1,5 +1,5 @@
 <span #buttonWrapper [attr.data-tlite]="copiedMessage" style="position: relative;">
-  <button #btn class="btn btn-sm btn-link pt-0" style="line-height: 0.9;" [attr.data-clipboard-text]="text"> 
+  <button #btn class="btn btn-sm btn-link pt-0" [style]="{'line-height': size === 'small' ? '0.2' : '0.8'}" [attr.data-clipboard-text]="text"> 
-    <img src="./resources/clippy.svg" width="13">
+    <img src="./resources/clippy.svg" [width]="size === 'small' ? 10 : 13">
   </button>
 </span>

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

@@ -1,3 +1,8 @@
 .btn-link {
   padding: 0.25rem 0 0.1rem 0.5rem;
 }
+
+img {
+  position: relative;
+  left: -3px;
+}

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

@@ -11,6 +11,7 @@ import * as tlite from 'tlite';
 export class ClipboardComponent implements AfterViewInit {
   @ViewChild('btn') btn: ElementRef;
   @ViewChild('buttonWrapper') buttonWrapper: ElementRef;
+  @Input() size: 'small' | 'normal' = 'normal';
   @Input() text: string;
   copiedMessage: string = $localize`:@@clipboard.copied-message:Copied!`;
 

frontend/src/app/components/difficulty-adjustments-table/difficulty-adjustments-table.components.ts

@@ -4,6 +4,7 @@ import { map } from 'rxjs/operators';
 import { ApiService } from 'src/app/services/api.service';
 import { formatNumber } from '@angular/common';
 import { selectPowerOfTen } from 'src/app/bitcoin.utils';
+import { StateService } from 'src/app/services/state.service';
 
 @Component({
   selector: 'app-difficulty-adjustments-table',
@@ -26,10 +27,16 @@ export class DifficultyAdjustmentsTable implements OnInit {
   constructor(
     @Inject(LOCALE_ID) public locale: string,
     private apiService: ApiService,
+    public stateService: StateService
   ) {
   }
 
   ngOnInit(): void {
+    let decimals = 2;
+    if (this.stateService.network === 'signet') {
+      decimals = 5;
+    }
+
     this.hashrateObservable$ = this.apiService.getDifficultyAdjustments$('3m')
       .pipe(
         map((response) => {
@@ -43,7 +50,7 @@ export class DifficultyAdjustmentsTable implements OnInit {
               change: (adjustment[3] - 1) * 100,
               difficultyShorten: formatNumber(
                 adjustment[2] / selectedPowerOfTen.divider,
-                this.locale, '1.2-2') + selectedPowerOfTen.unit
+                this.locale, `1.${decimals}-${decimals}`) + selectedPowerOfTen.unit
             });
           }
           this.isLoading = false;

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

@@ -1,7 +1,10 @@
-<div *ngIf="stateService.env.MINING_DASHBOARD" class="mb-3 d-inline-flex menu" style="padding: 0px 35px;">
+<div *ngIf="stateService.env.MINING_DASHBOARD || stateService.env.LIGHTNING" class="mb-3 d-flex menu"
+  style="padding: 0px 35px;">
+
   <a routerLinkActive="active" class="btn btn-primary w-50 mr-1"
     [routerLink]="['/graphs/mempool' | relativeUrl]">Mempool</a>
-  <div ngbDropdown class="w-50">
+
+  <div ngbDropdown class="w-50" *ngIf="stateService.env.MINING_DASHBOARD">
     <button class="btn btn-primary w-100" id="dropdownBasic1" ngbDropdownToggle i18n="mining">Mining</button>
     <div ngbDropdownMenu aria-labelledby="dropdownBasic1">
       <a class="dropdown-item" routerLinkActive="active" [routerLink]="['/graphs/mining/pools' | relativeUrl]"
@@ -9,19 +12,30 @@
       <a class="dropdown-item" routerLinkActive="active" [routerLink]="['/graphs/mining/pools-dominance' | relativeUrl]"
         i18n="mining.pools-dominance">Pools Dominance</a>
       <a class="dropdown-item" routerLinkActive="active"
-        [routerLink]="['/graphs/mining/hashrate-difficulty' | relativeUrl]" i18n="mining.hashrate-difficulty">Hashrate & Difficulty</a>
+        [routerLink]="['/graphs/mining/hashrate-difficulty' | relativeUrl]" i18n="mining.hashrate-difficulty">Hashrate &
-      <a class="dropdown-item" routerLinkActive="active"
+        Difficulty</a>
-        [routerLink]="['/graphs/mining/block-fee-rates' | relativeUrl]" i18n="mining.block-fee-rates">Block Fee Rates</a>
+      <a class="dropdown-item" routerLinkActive="active" [routerLink]="['/graphs/mining/block-fee-rates' | relativeUrl]"
-      <a class="dropdown-item" routerLinkActive="active"
+        i18n="mining.block-fee-rates">Block Fee Rates</a>
-        [routerLink]="['/graphs/mining/block-fees' | relativeUrl]" i18n="mining.block-fees">Block Fees</a>
+      <a class="dropdown-item" routerLinkActive="active" [routerLink]="['/graphs/mining/block-fees' | relativeUrl]"
-      <a class="dropdown-item" routerLinkActive="active"
+        i18n="mining.block-fees">Block Fees</a>
-        [routerLink]="['/graphs/mining/block-rewards' | relativeUrl]" i18n="mining.block-rewards">Block Rewards</a>
+      <a class="dropdown-item" routerLinkActive="active" [routerLink]="['/graphs/mining/block-rewards' | relativeUrl]"
+        i18n="mining.block-rewards">Block Rewards</a>
       <a class="dropdown-item" routerLinkActive="active"
         [routerLink]="['/graphs/mining/block-sizes-weights' | relativeUrl]" i18n="mining.block-sizes-weights">Block Sizes and Weights</a>
       <a class="dropdown-item" routerLinkActive="active"
         [routerLink]="['/graphs/mining/block-prediction' | relativeUrl]" i18n="mining.block-prediction-accuracy">Block Prediction Accuracy</a>
     </div>
   </div>
+
+  <div ngbDropdown class="w-50" *ngIf="stateService.env.LIGHTNING">
+    <button class="btn btn-primary w-100" id="dropdownBasic1" ngbDropdownToggle i18n="lightning">Lightning</button>
+    <div ngbDropdownMenu aria-labelledby="dropdownBasic1">
+      <a class="dropdown-item" routerLinkActive="active" [routerLink]="['/graphs/lightning/nodes-networks' | relativeUrl]"
+        i18n="lightning.nodes-networks">Nodes per network</a>
+      <a class="dropdown-item" routerLinkActive="active" [routerLink]="['/graphs/lightning/capacity' | relativeUrl]"
+        i18n="lightning.capacity">Network capacity</a>
+    </div>
+  </div>
 </div>
 
 <router-outlet></router-outlet>

frontend/src/app/components/hashrate-chart/hashrate-chart.component.html

@@ -12,8 +12,11 @@
       </div>
       <div class="item">
         <h5 class="card-title" i18n="block.difficulty">Difficulty</h5>
-        <p class="card-text">
+        <p class="card-text" *ngIf="network === 'signet'">
-          {{ hashrates.currentDifficulty | amountShortener }}
+          {{ hashrates.currentDifficulty | amountShortener : 5 }}
+        </p>
+        <p class="card-text" *ngIf="network !== 'signet'">
+          {{ hashrates.currentDifficulty | amountShortener : 2 }}
         </p>
       </div>
     </div>

frontend/src/app/components/hashrate-chart/hashrate-chart.component.ts

@@ -335,6 +335,9 @@ export class HashrateChartComponent implements OnInit {
           axisLabel: {
             color: 'rgb(110, 112, 121)',
             formatter: (val) => {
+              if (this.stateService.network === 'signet') {
+                return val;
+              }
               const selectedPowerOfTen: any = selectPowerOfTen(val);
               const newVal = Math.round(val / selectedPowerOfTen.divider);
               return `${newVal} ${selectedPowerOfTen.unit}`;

frontend/src/app/components/master-page/master-page.component.html

@@ -35,6 +35,9 @@
       <li class="nav-item" routerLinkActive="active" [routerLinkActiveOptions]="{exact: true}" id="btn-pools" *ngIf="stateService.env.MINING_DASHBOARD">
         <a class="nav-link" [routerLink]="['/mining' | relativeUrl]" (click)="collapse()"><fa-icon [icon]="['fas', 'hammer']" [fixedWidth]="true" i18n-title="mining.mining-dashboard" title="Mining Dashboard"></fa-icon></a>
       </li>
+      <li class="nav-item" routerLinkActive="active" [routerLinkActiveOptions]="{exact: true}" id="btn-pools" *ngIf="stateService.env.LIGHTNING">
+        <a class="nav-link" [routerLink]="['/lightning' | relativeUrl]" (click)="collapse()"><fa-icon [icon]="['fas', 'bolt']" [fixedWidth]="true" i18n-title="master-page.lightning" title="Lightning Explorer"></fa-icon></a>
+      </li>
       <li class="nav-item" routerLinkActive="active" id="btn-blocks" *ngIf="!stateService.env.MINING_DASHBOARD">
         <a class="nav-link" [routerLink]="['/blocks' | relativeUrl]" (click)="collapse()"><fa-icon [icon]="['fas', 'cubes']" [fixedWidth]="true" i18n-title="master-page.blocks" title="Blocks"></fa-icon></a>
       </li>

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

@@ -1,11 +1,12 @@
-import { Component, Input, AfterViewInit, ViewChild, ElementRef } from '@angular/core';
+import { Component, Input, AfterViewInit, ViewChild, ElementRef, ChangeDetectionStrategy } from '@angular/core';
 import * as QRCode from 'qrcode';
 import { StateService } from 'src/app/services/state.service';
 
 @Component({
   selector: 'app-qrcode',
   templateUrl: './qrcode.component.html',
-  styleUrls: ['./qrcode.component.scss']
+  styleUrls: ['./qrcode.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
 })
 export class QrcodeComponent implements AfterViewInit {
   @Input() data: string;
@@ -19,7 +20,18 @@ export class QrcodeComponent implements AfterViewInit {
     private stateService: StateService,
   ) { }
 
+  ngOnChanges() {
+    if (!this.canvas || !this.canvas.nativeElement) {
+      return;
+    }
+    this.render();
+  }
+
   ngAfterViewInit() {
+    this.render();
+  }
+
+  render() {
     if (!this.stateService.isBrowser) {
       return;
     }

frontend/src/app/components/search-form/search-form.component.html

@@ -1,7 +1,10 @@
 <form [formGroup]="searchForm" (submit)="searchForm.valid && search()" novalidate>
   <div class="d-flex">
     <div class="search-box-container mr-2">
-      <input #instance="ngbTypeahead" [ngbTypeahead]="typeaheadSearchFn" [resultFormatter]="formatterFn" (selectItem)="itemSelected()" (focus)="focus$.next($any($event).target.value)" (click)="click$.next($any($event).target.value)" formControlName="searchText" type="text" class="form-control" i18n-placeholder="search-form.searchbar-placeholder" placeholder="TXID, block height, hash or address">
+      <input (focus)="focus$.next($any($event).target.value)" (click)="click$.next($any($event).target.value)" formControlName="searchText" type="text" class="form-control" i18n-placeholder="search-form.searchbar-placeholder" placeholder="TXID, block height, hash or address">
+      
+      <app-search-results #searchResults [results]="typeAhead$ | async" [searchTerm]="searchForm.get('searchText').value" (selectedResult)="selectedResult($event)"></app-search-results>
+    
     </div>
     <div>
       <button [disabled]="isSearching" type="submit" class="btn btn-block btn-primary"><fa-icon [icon]="['fas', 'search']" [fixedWidth]="true" i18n-title="search-form.search-title" title="Search"></fa-icon></button>

frontend/src/app/components/search-form/search-form.component.scss

@@ -32,6 +32,7 @@ form {
 }
 
 .search-box-container {
+  position: relative;
   width: 100%;
   @media (min-width: 768px) {
     min-width: 400px;

frontend/src/app/components/search-form/search-form.component.ts

@@ -1,41 +1,40 @@
-import { Component, OnInit, ChangeDetectionStrategy, EventEmitter, Output, ViewChild } from '@angular/core';
+import { Component, OnInit, ChangeDetectionStrategy, EventEmitter, Output, ViewChild, HostListener } from '@angular/core';
 import { FormBuilder, FormGroup, Validators } from '@angular/forms';
 import { Router } from '@angular/router';
 import { AssetsService } from 'src/app/services/assets.service';
 import { StateService } from 'src/app/services/state.service';
-import { Observable, of, Subject, merge } from 'rxjs';
+import { Observable, of, Subject, merge, zip } from 'rxjs';
 import { debounceTime, distinctUntilChanged, switchMap, filter, catchError, map } from 'rxjs/operators';
 import { ElectrsApiService } from 'src/app/services/electrs-api.service';
-import { NgbTypeahead } from '@ng-bootstrap/ng-bootstrap';
 import { RelativeUrlPipe } from 'src/app/shared/pipes/relative-url/relative-url.pipe';
-import { ShortenStringPipe } from 'src/app/shared/pipes/shorten-string-pipe/shorten-string.pipe';
+import { ApiService } from 'src/app/services/api.service';
+import { SearchResultsComponent } from './search-results/search-results.component';
 
 @Component({
   selector: 'app-search-form',
   templateUrl: './search-form.component.html',
   styleUrls: ['./search-form.component.scss'],
-  changeDetection: ChangeDetectionStrategy.OnPush
+  changeDetection: ChangeDetectionStrategy.OnPush,
 })
 export class SearchFormComponent implements OnInit {
   network = '';
   assets: object = {};
   isSearching = false;
-  typeaheadSearchFn: ((text: Observable<string>) => Observable<readonly any[]>);
+  typeAhead$: Observable<any>;
-
   searchForm: FormGroup;
-  isMobile = (window.innerWidth <= 767.98);
-  @Output() searchTriggered = new EventEmitter();
 
   regexAddress = /^([a-km-zA-HJ-NP-Z1-9]{26,35}|[a-km-zA-HJ-NP-Z1-9]{80}|[a-z]{2,5}1[ac-hj-np-z02-9]{8,100}|[A-Z]{2,5}1[AC-HJ-NP-Z02-9]{8,100})$/;
   regexBlockhash = /^[0]{8}[a-fA-F0-9]{56}$/;
   regexTransaction = /^([a-fA-F0-9]{64}):?(\d+)?$/;
   regexBlockheight = /^[0-9]+$/;
-
-  @ViewChild('instance', {static: true}) instance: NgbTypeahead;
   focus$ = new Subject<string>();
   click$ = new Subject<string>();
 
-  formatterFn = (address: string) => this.shortenStringPipe.transform(address, this.isMobile ? 33 : 40);
+  @Output() searchTriggered = new EventEmitter();
+  @ViewChild('searchResults') searchResults: SearchResultsComponent;
+  @HostListener('keydown', ['$event']) keydown($event) {
+    this.handleKeyDown($event);
+  }
 
   constructor(
     private formBuilder: FormBuilder,
@@ -43,12 +42,11 @@ export class SearchFormComponent implements OnInit {
     private assetsService: AssetsService,
     private stateService: StateService,
     private electrsApiService: ElectrsApiService,
+    private apiService: ApiService,
     private relativeUrlPipe: RelativeUrlPipe,
-    private shortenStringPipe: ShortenStringPipe,
   ) { }
 
   ngOnInit() {
-    this.typeaheadSearchFn = this.typeaheadSearch;
     this.stateService.networkChanged$.subscribe((network) => this.network = network);
 
     this.searchForm = this.formBuilder.group({
@@ -61,45 +59,74 @@ export class SearchFormComponent implements OnInit {
           this.assets = assets;
         });
     }
-  }
 
-  typeaheadSearch = (text$: Observable<string>) => {
+    this.typeAhead$ = this.searchForm.get('searchText').valueChanges
-    const debouncedText$ = text$.pipe(
+      .pipe(
         map((text) => {
           if (this.network === 'bisq' && text.match(/^(b)[^c]/i)) {
             return text.substr(1);
           }
-        return text;
+          return text.trim();
         }),
-      debounceTime(200),
+        debounceTime(250),
-      distinctUntilChanged()
+        distinctUntilChanged(),
-    );
-    const clicksWithClosedPopup$ = this.click$.pipe(filter(() => !this.instance.isPopupOpen()));
-    const inputFocus$ = this.focus$;
-
-    return merge(debouncedText$, inputFocus$, clicksWithClosedPopup$)
-      .pipe(
         switchMap((text) => {
           if (!text.length) {
-            return of([]);
+            return of([
+              [],
+              {
+                nodes: [],
+                channels: [],
               }
-          return this.electrsApiService.getAddressesByPrefix$(text).pipe(catchError(() => of([])));
+            ]);
+          }
+          if (!this.stateService.env.LIGHTNING) {
+            return zip(
+              this.electrsApiService.getAddressesByPrefix$(text).pipe(catchError(() => of([]))),
+              [{ nodes: [], channels: [] }]
+            );
+          }
+          return zip(
+            this.electrsApiService.getAddressesByPrefix$(text).pipe(catchError(() => of([]))),
+            this.apiService.lightningSearch$(text).pipe(catchError(() => of({
+              nodes: [],
+              channels: [],
+            }))),
+          );
         }),
-        map((result: string[]) => {
+        map((result: any[]) => {
           if (this.network === 'bisq') {
-            return result.map((address: string) => 'B' + address);
+            return result[0].map((address: string) => 'B' + address);
           }
-          return result;
+          return {
+            addresses: result[0],
+            nodes: result[1].nodes,
+            channels: result[1].channels,
+            totalResults: result[0].length + result[1].nodes.length + result[1].channels.length,
+          };
         })
       );
   }
+  handleKeyDown($event) {
+    this.searchResults.handleKeyDown($event);
+  }
 
   itemSelected() {
     setTimeout(() => this.search());
   }
 
-  search() {
+  selectedResult(result: any) {
-    const searchText = this.searchForm.value.searchText.trim();
+    if (typeof result === 'string') {
+      this.search(result);
+    } else if (result.alias) {
+      this.navigate('/lightning/node/', result.public_key);
+    } else if (result.short_id) {
+      this.navigate('/lightning/channel/', result.id);
+    }
+  }
+
+  search(result?: string) {
+    const searchText = result || this.searchForm.value.searchText.trim();
     if (searchText) {
       this.isSearching = true;
       if (this.regexAddress.test(searchText)) {

frontend/src/app/components/search-form/search-results/search-results.component.html

@@ -0,0 +1,26 @@
+<div class="dropdown-menu show" *ngIf="results" [hidden]="!results.addresses.length && !results.nodes.length && !results.channels.length">
+  <ng-template [ngIf]="results.addresses.length">
+    <div class="card-title" *ngIf="stateService.env.LIGHTNING">Bitcoin Addresses</div>
+    <ng-template ngFor [ngForOf]="results.addresses" let-address let-i="index">
+      <button (click)="clickItem(i)" [class.active]="i === activeIdx" type="button" role="option" class="dropdown-item">
+        <ngb-highlight [result]="address | shortenString : isMobile ? 25 : 36" [term]="searchTerm"></ngb-highlight>
+      </button>
+    </ng-template>
+  </ng-template>
+  <ng-template [ngIf]="results.nodes.length">
+    <div class="card-title">Lightning Nodes</div>
+    <ng-template ngFor [ngForOf]="results.nodes" let-node let-i="index">
+      <button (click)="clickItem(results.addresses.length + i)" [class.active]="results.addresses.length + i === activeIdx" [routerLink]="['/lightning/node' | relativeUrl, node.public_key]" type="button" role="option" class="dropdown-item">
+        <ngb-highlight [result]="node.alias" [term]="searchTerm"></ngb-highlight> &nbsp;<span class="symbol">{{ node.public_key | shortenString : 10 }}</span>
+      </button>
+    </ng-template>
+  </ng-template>
+  <ng-template [ngIf]="results.channels.length">
+    <div class="card-title">Lightning Channels</div>
+    <ng-template ngFor [ngForOf]="results.channels" let-channel let-i="index">
+      <button (click)="clickItem(results.addresses.length + results.nodes.length + i)" [class.active]="results.addresses.length + results.nodes.length + i === activeIdx" type="button" role="option" class="dropdown-item">
+        <ngb-highlight [result]="channel.short_id" [term]="searchTerm"></ngb-highlight> &nbsp;<span class="symbol">{{ channel.id }}</span>
+      </button>
+    </ng-template>
+  </ng-template>
+</div>

frontend/src/app/components/search-form/search-results/search-results.component.scss

@@ -0,0 +1,16 @@
+.card-title {
+  color: #4a68b9;
+  font-size: 10px;
+  margin-bottom: 4px;
+  font-size: 1rem;
+
+  margin-left: 10px;
+}
+
+.dropdown-menu {
+  position: absolute;
+  top: 42px;
+  left: 0px;
+  box-shadow: 0.125rem 0.125rem 0.25rem rgba(0,0,0,0.075);
+  width: 100%;
+}

frontend/src/app/components/search-form/search-results/search-results.component.ts

@@ -0,0 +1,73 @@
+import { Component, EventEmitter, Input, OnChanges, Output } from '@angular/core';
+import { StateService } from 'src/app/services/state.service';
+
+@Component({
+  selector: 'app-search-results',
+  templateUrl: './search-results.component.html',
+  styleUrls: ['./search-results.component.scss'],
+})
+export class SearchResultsComponent implements OnChanges {
+  @Input() results: any = {};
+  @Input() searchTerm = '';
+  @Output() selectedResult = new EventEmitter();
+
+  isMobile = (window.innerWidth <= 767.98);
+  resultsFlattened = [];
+  activeIdx = 0;
+  focusFirst = true;
+
+  constructor(public stateService: StateService) { }
+
+  ngOnChanges() {
+    this.activeIdx = 0;
+    if (this.results) {
+      this.resultsFlattened = [...this.results.addresses, ...this.results.nodes, ...this.results.channels];
+    }
+  }
+
+  handleKeyDown(event: KeyboardEvent) {
+    switch (event.key) {
+      case 'ArrowDown':
+        event.preventDefault();
+        this.next();
+        break;
+      case 'ArrowUp':
+        event.preventDefault();
+        this.prev();
+        break;
+      case 'Enter':
+        event.preventDefault();
+        if (this.resultsFlattened[this.activeIdx]) {
+          this.selectedResult.emit(this.resultsFlattened[this.activeIdx]);
+        } else {
+          this.selectedResult.emit(this.searchTerm);
+        }
+        this.results = null;
+        break;
+    }
+  }
+
+  clickItem(id: number) {
+    this.selectedResult.emit(this.resultsFlattened[id]);
+    this.results = null;
+  }
+
+  next() {
+    if (this.activeIdx === this.resultsFlattened.length - 1) {
+      this.activeIdx = this.focusFirst ? (this.activeIdx + 1) % this.resultsFlattened.length : -1;
+    } else {
+      this.activeIdx++;
+    }
+  }
+
+  prev() {
+    if (this.activeIdx < 0) {
+      this.activeIdx = this.resultsFlattened.length - 1;
+    } else if (this.activeIdx === 0) {
+      this.activeIdx = this.focusFirst ? this.resultsFlattened.length - 1 : -1;
+    } else {
+      this.activeIdx--;
+    }
+  }
+
+}

frontend/src/app/components/time-since/time-since.component.ts

@@ -13,6 +13,7 @@ export class TimeSinceComponent implements OnInit, OnChanges, OnDestroy {
   intervals = {};
 
   @Input() time: number;
+  @Input() dateString: number;
   @Input() fastRender = false;
 
   constructor(
@@ -52,7 +53,13 @@ export class TimeSinceComponent implements OnInit, OnChanges, OnDestroy {
   }
 
   calculate() {
-    const seconds = Math.floor((+new Date() - +new Date(this.time * 1000)) / 1000);
+    let date: Date;
+    if (this.dateString) {
+      date = new Date(this.dateString)
+    } else {
+      date = new Date(this.time * 1000);
+    }
+    const seconds = Math.floor((+new Date() - +date) / 1000);
     if (seconds < 60) {
       return $localize`:@@date-base.just-now:Just now`;
     }

frontend/src/app/components/transactions-list/transactions-list.component.html

@@ -77,7 +77,7 @@
                           {{ vin.prevout.scriptpubkey_type?.toUpperCase() }}
                         </ng-template>
                         <div>
-                          <app-address-labels [vin]="vin"></app-address-labels>
+                          <app-address-labels [vin]="vin" [channel]="channels && channels.inputs[i] || null"></app-address-labels>
                         </div>
                       </ng-template>
                     </ng-container>
@@ -172,7 +172,7 @@
                     </span>
                   </a>
                   <div>
-                    <app-address-labels [vout]="vout"></app-address-labels>
+                    <app-address-labels [vout]="vout" [channel]="channels && channels.outputs[i] && channels.outputs[i].transaction_vout === vindex ? channels.outputs[i] : null"></app-address-labels>
                   </div>
                   <ng-template #scriptpubkey_type>
                     <ng-template [ngIf]="vout.pegout" [ngIfElse]="defaultscriptpubkey_type">

frontend/src/app/components/transactions-list/transactions-list.component.ts

@@ -1,11 +1,11 @@
 import { Component, OnInit, Input, ChangeDetectionStrategy, OnChanges, Output, EventEmitter, ChangeDetectorRef } from '@angular/core';
 import { StateService } from '../../services/state.service';
-import { Observable, forkJoin, ReplaySubject, BehaviorSubject, merge, Subscription } from 'rxjs';
+import { Observable, ReplaySubject, BehaviorSubject, merge, Subscription } from 'rxjs';
 import { Outspend, Transaction, Vin, Vout } from '../../interfaces/electrs.interface';
 import { ElectrsApiService } from '../../services/electrs-api.service';
 import { environment } from 'src/environments/environment';
 import { AssetsService } from 'src/app/services/assets.service';
-import { map, tap, switchMap } from 'rxjs/operators';
+import { filter, map, tap, switchMap } from 'rxjs/operators';
 import { BlockExtended } from 'src/app/interfaces/node-api.interface';
 import { ApiService } from 'src/app/services/api.service';
 
@@ -32,9 +32,11 @@ export class TransactionsListComponent implements OnInit, OnChanges {
   latestBlock$: Observable<BlockExtended>;
   outspendsSubscription: Subscription;
   refreshOutspends$: ReplaySubject<string[]> = new ReplaySubject();
+  refreshChannels$: ReplaySubject<string[]> = new ReplaySubject();
   showDetails$ = new BehaviorSubject<boolean>(false);
   outspends: Outspend[][] = [];
   assetsMinimal: any;
+  channels: { inputs: any[], outputs: any[] };
 
   constructor(
     public stateService: StateService,
@@ -73,7 +75,16 @@ export class TransactionsListComponent implements OnInit, OnChanges {
               };
             }
           }),
+        ),
+        this.refreshChannels$
+          .pipe(
+            filter(() => this.stateService.env.LIGHTNING),
+            switchMap((txIds) => this.apiService.getChannelByTxIds$(txIds)),
+            map((channels) => {
+              this.channels = channels;
+            }),
           )
+        ,
     ).subscribe(() => this.ref.markForCheck());
   }
 
@@ -114,8 +125,9 @@ export class TransactionsListComponent implements OnInit, OnChanges {
         tx['addressValue'] = addressIn - addressOut;
       }
     });
-
+    const txIds = this.transactions.map((tx) => tx.txid);
-    this.refreshOutspends$.next(this.transactions.map((tx) => tx.txid));
+    this.refreshOutspends$.next(txIds);
+    this.refreshChannels$.next(txIds);
   }
 
   onScroll() {

frontend/src/app/graphs/graphs.module.ts

@@ -57,6 +57,9 @@ import { CommonModule } from '@angular/common';
     NgxEchartsModule.forRoot({
       echarts: () => import('echarts')
     })
+  ],
+  exports: [
+    NgxEchartsModule,
   ]
 })
 export class GraphsModule { }

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

@@ -18,6 +18,8 @@ import { StartComponent } from '../components/start/start.component';
 import { StatisticsComponent } from '../components/statistics/statistics.component';
 import { TelevisionComponent } from '../components/television/television.component';
 import { DashboardComponent } from '../dashboard/dashboard.component';
+import { NodesNetworksChartComponent } from '../lightning/nodes-networks-chart/nodes-networks-chart.component';
+import { LightningStatisticsChartComponent } from '../lightning/statistics-chart/lightning-statistics-chart.component';
 
 const browserWindow = window || {};
 // @ts-ignore
@@ -89,6 +91,14 @@ const routes: Routes = [
             path: 'mining/block-sizes-weights',
             component: BlockSizesWeightsGraphComponent,
           },
+          {
+            path: 'lightning/nodes-networks',
+            component: NodesNetworksChartComponent,
+          },
+          {
+            path: 'lightning/capacity',
+            component: LightningStatisticsChartComponent,
+          },
           {
             path: '',
             redirectTo: 'mempool',

frontend/src/app/lightning/channel/channel-box/channel-box.component.html

@@ -0,0 +1,54 @@
+<div class="mb-2 box-top">
+  <div class="box-left">
+    <h3 class="mb-0">{{ channel.alias || '?' }}</h3>
+    <a [routerLink]="['/lightning/node' | relativeUrl, channel.public_key]" >
+      {{ channel.public_key | shortenString : 12 }}
+    </a>
+    <app-clipboard [text]="channel.node1_public_key"></app-clipboard>
+  </div>
+  <div class="box-right">
+    <div class="second-line">{{ channel.channels }} channels</div>
+    <div class="second-line"><app-amount [satoshis]="channel.capacity" digitsInfo="1.2-2"></app-amount></div>
+  </div>
+</div>
+<div class="box">
+
+  <div class="col-md">
+    <table class="table table-borderless table-striped">
+      <tbody>
+        <tr>
+          <td i18n="address.total-sent">Fee rate</td>
+          <td>
+            {{ channel.fee_rate }} <span class="symbol">ppm ({{ channel.fee_rate / 10000 | number }}%)</span>
+          </td>
+        </tr>
+        <tr>
+          <td i18n="address.total-sent">Base fee</td>
+          <td>
+            <app-sats [satoshis]="channel.base_fee_mtokens / 1000" digitsInfo="1.0-2"></app-sats>
+          </td>
+        </tr>
+        <tr>
+          <td i18n="address.total-sent">Min HTLC</td>
+          <td>
+            <app-sats [satoshis]="channel.min_htlc_mtokens / 1000"></app-sats>
+          </td>
+        </tr>
+        <tr>
+          <td i18n="address.total-sent">Max HTLC</td>
+          <td>
+            <app-sats [satoshis]="channel.max_htlc_mtokens / 1000"></app-sats>
+          </td>
+        </tr>
+        <tr>
+          <td i18n="address.total-sent">Timelock delta</td>
+          <td>
+            <ng-container *ngTemplateOutlet="blocksPlural; context: {$implicit: channel.cltv_delta }"></ng-container>
+          </td>
+        </tr>
+      </tbody>
+    </table>
+  </div>
+</div>
+
+<ng-template #blocksPlural let-i i18n="shared.blocks">{{ i }} <span class="shared-block">blocks</span></ng-template>

frontend/src/app/lightning/channel/channel-box/channel-box.component.scss

@@ -0,0 +1,18 @@
+.box-top {
+  display: flex;
+}
+
+.box-left {
+  width: 100%;
+}
+
+.box-right {
+  text-align: right;
+  width: 50%;
+  margin-top: auto;
+}
+
+.shared-block {
+  color: #ffffff66;
+  font-size: 12px;
+}

frontend/src/app/lightning/channel/channel-box/channel-box.component.spec.ts

@@ -0,0 +1,25 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ChannelBoxComponent } from './channel-box.component';
+
+describe('ChannelBoxComponent', () => {
+  let component: ChannelBoxComponent;
+  let fixture: ComponentFixture<ChannelBoxComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ ChannelBoxComponent ]
+    })
+    .compileComponents();
+  });
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ChannelBoxComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

frontend/src/app/lightning/channel/channel-box/channel-box.component.ts

@@ -0,0 +1,14 @@
+import { ChangeDetectionStrategy, Component, Input } from '@angular/core';
+
+@Component({
+  selector: 'app-channel-box',
+  templateUrl: './channel-box.component.html',
+  styleUrls: ['./channel-box.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class ChannelBoxComponent {
+  @Input() channel: any;
+
+  constructor() { }
+
+}

frontend/src/app/lightning/channel/channel.component.html

@@ -0,0 +1,96 @@
+<div class="container-xl" *ngIf="(channel$ | async) as channel">
+  <div class="title-container">
+    <h1 class="mb-0">{{ channel.short_id }}</h1>
+    <span class="tx-link">
+      <a [routerLink]="['/lightning/channel' | relativeUrl, channel.id]">{{ channel.id }}</a>
+      <app-clipboard [text]="channel.id"></app-clipboard>
+    </span>
+  </div>
+  <div class="badges mb-2">
+    <span class="badge rounded-pill badge-secondary" *ngIf="channel.status === 0">Inactive</span>
+    <span class="badge rounded-pill badge-success" *ngIf="channel.status === 1">Active</span>
+    <span class="badge rounded-pill badge-danger" *ngIf="channel.status === 2">Closed</span>
+  </div>
+
+  <div class="clearfix"></div>
+
+    <div class="box">
+
+      <div class="row">
+        <div class="col-md">
+          <table class="table table-borderless table-striped">
+            <tbody>
+              <tr>
+                <td i18n="address.total-sent">Created</td>
+                <td><app-timestamp [dateString]="channel.created"></app-timestamp></td>
+              </tr>
+              <tr>
+                <td i18n="address.total-sent">Last update</td>
+                <td><app-timestamp [dateString]="channel.updated_at"></app-timestamp></td>
+              </tr>
+              <tr>
+                <td i18n="address.total-sent">Opening transaction</td>
+                <td>
+                  <a [routerLink]="['/tx' | relativeUrl, channel.transaction_id + ':' + channel.transaction_vout]" >
+                    <span>{{ channel.transaction_id | shortenString : 10 }}</span>
+                  </a>
+                  <app-clipboard [text]="channel.transaction_id"></app-clipboard>
+                </td>
+              </tr>
+              <ng-template [ngIf]="channel.closing_transaction_id">
+                <tr *ngIf="channel.closing_transaction_id">
+                  <td i18n="address.total-sent">Closing transaction</td>
+                  <td>
+                    <a [routerLink]="['/tx' | relativeUrl, channel.closing_transaction_id]" >
+                      <span>{{ channel.closing_transaction_id | shortenString : 10 }}</span>
+                    </a>
+                    <app-clipboard [text]="channel.closing_transaction_id"></app-clipboard>
+                  </td>
+                </tr>
+                <tr>
+                  <td i18n="address.total-sent">Closing type</td>
+                  <td>
+                    <app-closing-type [type]="channel.closing_reason"></app-closing-type>
+                  </td>
+                </tr>
+              </ng-template>
+            </tbody>
+          </table>
+        </div>
+        <div class="w-100 d-block d-md-none"></div>
+        <div class="col-md">
+          <table class="table table-borderless table-striped">
+            <tbody>
+              <tr>
+                <td i18n="address.total-received">Capacity</td>
+                <td><app-sats [satoshis]="channel.capacity"></app-sats><app-fiat [value]="channel.capacity" digitsInfo="1.0-0"></app-fiat></td>
+              </tr>
+            </tbody>
+          </table>
+        </div>
+      </div>
+
+    </div>
+
+    <br>
+
+    <div class="row row-cols-1 row-cols-md-2">
+      <div class="col">
+        <app-channel-box [channel]="channel.node_left"></app-channel-box>
+      </div>
+      <div class="col">
+        <app-channel-box [channel]="channel.node_right"></app-channel-box>
+    </div>
+  </div>
+
+</div>
+
+<br>
+
+<ng-template [ngIf]="error">
+  <div class="text-center">
+    <span i18n="error.general-loading-data">Error loading data.</span>
+    <br><br>
+    <i>{{ error.status }}: {{ error.error }}</i>
+  </div>
+</ng-template>

frontend/src/app/lightning/channel/channel.component.scss

@@ -0,0 +1,41 @@
+.title-container {
+  display: flex;
+  flex-direction: row;
+
+  @media (max-width: 768px) {
+    flex-direction: column;
+  }
+}
+
+.tx-link {
+  display: flex;
+	flex-grow: 1;
+	@media (min-width: 650px) {
+    align-self: end;
+    margin-left: 15px;
+    margin-top: 0px;
+    margin-bottom: -3px;
+	}
+	@media (min-width: 768px) {
+    margin-bottom: 4px;
+    top: 1px;
+    position: relative;
+	}
+	@media (max-width: 768px) {
+	  order: 2;
+	}
+}
+
+.badges {
+  font-size: 20px;
+}
+
+app-fiat {
+  display: block;
+  font-size: 13px;
+  @media (min-width: 768px) {
+    font-size: 14px;
+    display: inline-block;
+    margin-left: 10px;
+  }
+}

frontend/src/app/lightning/channel/channel.component.ts

@@ -0,0 +1,42 @@
+import { ChangeDetectionStrategy, Component, OnInit } from '@angular/core';
+import { ActivatedRoute, ParamMap } from '@angular/router';
+import { Observable, of } from 'rxjs';
+import { catchError, switchMap } from 'rxjs/operators';
+import { SeoService } from 'src/app/services/seo.service';
+import { LightningApiService } from '../lightning-api.service';
+
+@Component({
+  selector: 'app-channel',
+  templateUrl: './channel.component.html',
+  styleUrls: ['./channel.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class ChannelComponent implements OnInit {
+  channel$: Observable<any>;
+  error: any = null;
+
+  constructor(
+    private lightningApiService: LightningApiService,
+    private activatedRoute: ActivatedRoute,
+    private seoService: SeoService,
+  ) { }
+
+  ngOnInit(): void {
+    this.channel$ = this.activatedRoute.paramMap
+      .pipe(
+        switchMap((params: ParamMap) => {
+          this.error = null;
+          this.seoService.setTitle(`Channel: ${params.get('short_id')}`);
+          return this.lightningApiService.getChannel$(params.get('short_id'))
+            .pipe(
+              catchError((err) => {
+                this.error = err;
+                console.log(this.error);
+                return of(null);
+              })
+            );
+        })
+      );
+  }
+
+}

frontend/src/app/lightning/channel/closing-type/closing-type.component.html

@@ -0,0 +1 @@
+<span class="badge badge-pill badge-{{ label.class }}" >{{ label.label }}</span>

frontend/src/app/lightning/channel/closing-type/closing-type.component.ts

@@ -0,0 +1,37 @@
+import { ChangeDetectionStrategy, Component, Input, OnChanges, OnInit } from '@angular/core';
+
+@Component({
+  selector: 'app-closing-type',
+  templateUrl: './closing-type.component.html',
+  styleUrls: ['./closing-type.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class ClosingTypeComponent implements OnChanges {
+  @Input() type = 0;
+  label: { label: string; class: string };
+
+  ngOnChanges() {
+    this.label = this.getLabelFromType(this.type);
+  }
+
+  getLabelFromType(type: number): { label: string; class: string } {
+    switch (type) {
+      case 1: return { 
+        label: 'Mutually closed',
+        class: 'success',
+      };
+      case 2: return {
+        label: 'Force closed',
+        class: 'warning',
+      };
+      case 3: return {
+        label: 'Force closed with penalty',
+        class: 'danger',
+      };
+      default: return {
+        label: 'Unknown',
+        class: 'secondary',
+      };
+    }
+  }
+}

frontend/src/app/lightning/channels-list/channels-list.component.html

@@ -0,0 +1,101 @@
+<div *ngIf="channels$ | async as response; else skeleton">
+  <h2 class="float-left">Channels ({{ response.totalItems }})</h2>
+
+  <form [formGroup]="channelStatusForm" class="formRadioGroup float-right">
+    <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="status">
+      <label ngbButtonLabel class="btn-primary btn-sm">
+        <input ngbButton type="radio" [value]="'open'" fragment="open"> Open
+      </label>
+      <label ngbButtonLabel class="btn-primary btn-sm">
+        <input ngbButton type="radio" [value]="'closed'" fragment="closed"> Closed
+      </label>
+    </div>
+  </form>
+
+  <table class="table table-borderless">
+    <ng-container *ngTemplateOutlet="tableHeader"></ng-container>
+    <tbody>
+      <tr *ngFor="let channel of response.channels; let i = index;">
+        <ng-container *ngTemplateOutlet="tableTemplate; context: { $implicit: channel, node: channel.node_left.public_key === publicKey ? channel.node_right : channel.node_left }"></ng-container>
+      </tr>
+    </tbody>
+  </table>
+  
+  <ngb-pagination class="pagination-container float-right" [size]="paginationSize" [collectionSize]="response.totalItems" [rotate]="true" [pageSize]="itemsPerPage" [(page)]="page" (pageChange)="pageChange(page)" [maxSize]="paginationMaxSize" [boundaryLinks]="true" [ellipses]="false"></ngb-pagination>
+</div>
+  
+<ng-template #tableHeader>
+  <thead>
+    <th class="alias text-left" i18n="nodes.alias">Node Alias</th>
+    <th class="alias text-left d-none d-md-table-cell" i18n="channels.transaction">&nbsp;</th>
+    <th class="alias text-left d-none d-md-table-cell" i18n="nodes.alias">Status</th>
+    <th class="channels text-left d-none d-md-table-cell" i18n="channels.rate">Fee Rate</th>
+    <th class="capacity text-right d-none d-md-table-cell" i18n="nodes.capacity">Capacity</th>
+    <th class="capacity text-right" i18n="channels.id">Channel ID</th>
+  </thead>
+</ng-template>
+
+<ng-template #tableTemplate let-channel let-node="node">
+  <td class="alias text-left">
+    <div>{{ node.alias || '?' }}</div>
+    <div class="second-line">
+      <a [routerLink]="['/lightning/node' | relativeUrl, node.public_key]">
+        <span>{{ node.public_key | shortenString : 10 }}</span>
+      </a>
+      <app-clipboard [text]="node.public_key" size="small"></app-clipboard>
+    </div>
+  </td>
+  <td class="alias text-left d-none d-md-table-cell">
+    <div class="second-line">{{ node.channels }} channels</div>
+    <div class="second-line"><app-amount [satoshis]="node.capacity" digitsInfo="1.2-2"></app-amount></div>
+  </td>
+  <td class="d-none d-md-table-cell">
+    <span class="badge rounded-pill badge-secondary" *ngIf="channel.status === 0">Inactive</span>
+    <span class="badge rounded-pill badge-success" *ngIf="channel.status === 1">Active</span>
+    <ng-template [ngIf]="channel.status === 2">
+      <span class="badge rounded-pill badge-secondary" *ngIf="!channel.closing_reason; else closingReason">Closed</span>
+      <ng-template #closingReason>
+        <app-closing-type [type]="channel.closing_reason"></app-closing-type>
+      </ng-template>
+    </ng-template>
+  </td>
+  <td class="capacity text-left d-none d-md-table-cell">
+    {{ node.fee_rate }} <span class="symbol">ppm ({{ node.fee_rate / 10000 | number }}%)</span>
+  </td>
+  <td class="capacity text-right d-none d-md-table-cell">
+    <app-amount [satoshis]="channel.capacity" digitsInfo="1.2-2"></app-amount>
+  </td>
+  <td class="capacity text-right">
+    <a [routerLink]="['/lightning/channel' | relativeUrl, channel.id]">{{ channel.short_id }}</a>
+   </td>
+</ng-template>
+
+<ng-template #skeleton>
+  <h2 class="float-left">Channels</h2>
+
+  <table class="table table-borderless">
+  <ng-container *ngTemplateOutlet="tableHeader"></ng-container>
+  <tbody>
+    <tr *ngFor="let item of [1,2,3,4,5,6,7,8,9,10]">
+      <td class="alias text-left" style="width: 370px;">
+        <span class="skeleton-loader"></span>
+      </td>
+      <td class="alias text-left">
+        <span class="skeleton-loader"></span>
+      </td>
+      <td class="capacity text-left d-none d-md-table-cell">
+        <span class="skeleton-loader"></span>
+      </td>
+      <td class="channels text-left d-none d-md-table-cell">
+        <span class="skeleton-loader"></span>
+      </td>
+      <td class="channels text-right d-none d-md-table-cell">
+        <span class="skeleton-loader"></span>
+      </td>
+      <td class="channels text-left">
+        <span class="skeleton-loader"></span>
+      </td>
+    </tr>
+  </tbody>
+</table>
+</ng-template>

frontend/src/app/lightning/channels-list/channels-list.component.scss

@@ -0,0 +1,3 @@
+.second-line {
+  font-size: 12px;
+}

frontend/src/app/lightning/channels-list/channels-list.component.ts

@@ -0,0 +1,64 @@
+import { ChangeDetectionStrategy, Component, Input, OnChanges, OnInit } from '@angular/core';
+import { FormBuilder, FormGroup } from '@angular/forms';
+import { BehaviorSubject, combineLatest, merge, Observable, of } from 'rxjs';
+import { map, startWith, switchMap } from 'rxjs/operators';
+import { LightningApiService } from '../lightning-api.service';
+
+@Component({
+  selector: 'app-channels-list',
+  templateUrl: './channels-list.component.html',
+  styleUrls: ['./channels-list.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class ChannelsListComponent implements OnInit, OnChanges {
+  @Input() publicKey: string;
+  channels$: Observable<any>;
+
+  // @ts-ignore
+  paginationSize: 'sm' | 'lg' = 'md';
+  paginationMaxSize = 10;
+  itemsPerPage = 25;
+  page = 1;
+  channelsPage$ = new BehaviorSubject<number>(1);
+  channelStatusForm: FormGroup;
+  defaultStatus = 'open';
+
+  constructor(
+    private lightningApiService: LightningApiService,
+    private formBuilder: FormBuilder,
+  ) { 
+    this.channelStatusForm = this.formBuilder.group({
+      status: [this.defaultStatus],
+    });
+  }
+
+  ngOnInit() {
+    if (document.body.clientWidth < 670) {
+      this.paginationSize = 'sm';
+      this.paginationMaxSize = 3;
+    }
+  }
+
+  ngOnChanges(): void {
+    this.channelStatusForm.get('status').setValue(this.defaultStatus, { emitEvent: false })
+
+    this.channels$ = combineLatest([
+      this.channelsPage$,
+      this.channelStatusForm.get('status').valueChanges.pipe(startWith(this.defaultStatus))
+    ])
+    .pipe(
+      switchMap(([page, status]) =>this.lightningApiService.getChannelsByNodeId$(this.publicKey, (page -1) * this.itemsPerPage, status)),
+      map((response) => {
+        return {
+          channels: response.body,
+          totalItems: parseInt(response.headers.get('x-total-count'), 10)
+        };
+      }),
+    );
+  }
+
+  pageChange(page: number) {
+    this.channelsPage$.next(page);
+  }
+
+}

frontend/src/app/lightning/channels-statistics/channels-statistics.component.html

@@ -0,0 +1,126 @@
+<div class="widget-toggler">
+  <a href="javascript:;" (click)="switchMode('avg')" class="toggler-option"
+    [ngClass]="{'inactive': mode !== 'avg'}"><small>avg</small></a>
+  <span style="color: #ffffff66; font-size: 8px"> | </span>
+  <a href="javascript:;" (click)="switchMode('med')" class="toggler-option"
+    [ngClass]="{'inactive': mode !== 'med'}"><small>med</small></a>
+</div>
+
+<div class="fee-estimation-wrapper" *ngIf="statistics$ | async as statistics; else loadingReward">
+
+  <div class="fee-estimation-container" *ngIf="mode === 'avg'">
+    <div class="item">
+      <h5 class="card-title" i18n="ln.average-capacity">Avg Capacity</h5>
+      <div class="card-text">
+        <div class="fee-text">
+          {{ statistics.latest?.avg_capacity || 0 | number: '1.0-0' }}
+          <span i18n="shared.sat-vbyte|sat/vB">sats</span>
+        </div>
+        <span class="fiat">
+          <app-change [current]="statistics.latest?.avg_capacity" [previous]="statistics.previous?.avg_capacity"></app-change>
+        </span>
+      </div>
+    </div>
+
+    <div class="item">
+      <h5 class="card-title" i18n="ln.average-feerate">Avg Fee Rate</h5>
+      <div class="card-text" i18n-ngbTooltip="ln.average-feerate-desc"
+        ngbTooltip="The average fee rate charged by routing nodes, ignoring fee rates > 0.5% or 5000ppm"
+        placement="bottom">
+        <div class="fee-text">
+          {{ statistics.latest?.avg_fee_rate || 0 | number: '1.0-0' }}
+          <span i18n="shared.sat-vbyte|sat/vB">ppm</span>
+        </div>
+        <span class="fiat">
+          <app-change [current]="statistics.latest?.avg_fee_rate" [previous]="statistics.previous?.avg_fee_rate"></app-change>
+        </span>
+      </div>
+    </div>
+
+    <div class="item">
+      <h5 class="card-title" i18n="ln.average-basefee">Avg Base Fee</h5>
+      <div class="card-text" i18n-ngbTooltip="ln.average-basefee-desc"
+        ngbTooltip="The average base fee charged by routing nodes, ignoring base fees > 5000ppm" placement="bottom">
+        <div class="card-text">
+          <div class="fee-text">
+            {{ statistics.latest?.avg_base_fee_mtokens || 0 | number: '1.0-0' }}
+            <span i18n="shared.sat-vbyte|sat/vB">msats</span>
+          </div>
+          <span class="fiat">
+            <app-change [current]="statistics.latest?.avg_base_fee_mtokens" [previous]="statistics.previous?.avg_base_fee_mtokens"></app-change>
+          </span>
+        </div>
+      </div>
+    </div>
+  </div>
+
+  <div class="fee-estimation-container" *ngIf="mode === 'med'">
+    <div class="item">
+      <h5 class="card-title" i18n="ln.median-capacity">Med Capacity</h5>
+      <div class="card-text">
+        <div class="fee-text">
+          {{ statistics.latest?.med_capacity || 0 | number: '1.0-0' }}
+          <span i18n="shared.sat-vbyte|sat/vB">sats</span>
+        </div>
+        <span class="fiat">
+          <app-change [current]="statistics.latest?.med_capacity" [previous]="statistics.previous?.med_capacity"></app-change>
+        </span>
+      </div>
+    </div>
+    <div class="item">
+      <h5 class="card-title" i18n="ln.average-feerate">Med Fee Rate</h5>
+      <div class="card-text" i18n-ngbTooltip="ln.median-feerate-desc"
+        ngbTooltip="The average fee rate charged by routing nodes, ignoring fee rates > 0.5% or 5000ppm"
+        placement="bottom">
+        <div class="fee-text">
+          {{ statistics.latest?.med_fee_rate || 0 | number: '1.0-0' }}
+          <span i18n="shared.sat-vbyte|sat/vB">ppm</span>
+        </div>
+        <span class="fiat">
+          <app-change [current]="statistics.latest?.med_fee_rate" [previous]="statistics.previous?.med_fee_rate"></app-change>
+        </span>
+      </div>
+    </div>
+    <div class="item">
+      <h5 class="card-title" i18n="ln.median-basefee">Med Base Fee</h5>
+      <div class="card-text" i18n-ngbTooltip="ln.median-basefee-desc"
+        ngbTooltip="The median base fee charged by routing nodes, ignoring base fees > 5000ppm" placement="bottom">
+        <div class="card-text">
+          <div class="fee-text">
+            {{ statistics.latest?.med_base_fee_mtokens || 0 | number: '1.0-0' }}
+            <span i18n="shared.sat-vbyte|sat/vB">msats</span>
+          </div>
+        </div>
+        <span class="fiat">
+          <app-change [current]="statistics.latest?.med_base_fee_mtokens" [previous]="statistics.previous?.med_base_fee_mtokens"></app-change>
+        </span>
+      </div>
+    </div>
+  </div>
+</div>
+
+<ng-template #loadingReward>
+  <div class="fee-estimation-container loading-container">
+    <div class="item">
+      <h5 class="card-title" i18n="mining.rewards">Nodes</h5>
+      <div class="card-text">
+        <div class="skeleton-loader"></div>
+        <div class="skeleton-loader"></div>
+      </div>
+    </div>
+    <div class="item">
+      <h5 class="card-title" i18n="mining.rewards-per-tx">Channels</h5>
+      <div class="card-text">
+        <div class="skeleton-loader"></div>
+        <div class="skeleton-loader"></div>
+      </div>
+    </div>
+    <div class="item">
+      <h5 class="card-title" i18n="mining.average-fee">Average Channel</h5>
+      <div class="card-text">
+        <div class="skeleton-loader"></div>
+        <div class="skeleton-loader"></div>
+      </div>
+    </div>
+  </div>
+</ng-template>

frontend/src/app/lightning/channels-statistics/channels-statistics.component.scss

@@ -0,0 +1,101 @@
+.card-title {
+  color: #4a68b9;
+  font-size: 10px;
+  margin-bottom: 4px;  
+  font-size: 1rem;
+}
+
+.card-text {
+  font-size: 22px;
+  span {
+    font-size: 11px;
+    position: relative;
+    top: -2px;
+    display: inline-flex;
+  }
+  .green-color {
+    display: block;
+  }
+}
+
+.fee-estimation-container {
+  display: flex;
+  justify-content: space-between;
+  @media (min-width: 376px) {
+    flex-direction: row;
+  }  
+  .item {
+    max-width: 150px;
+    margin: 0;
+    width: -webkit-fill-available;
+    @media (min-width: 376px) {
+      margin: 0 auto 0px;
+    }    
+    &:first-child{
+      display: none;
+      @media (min-width: 485px) {
+        display: block;
+      }    
+      @media (min-width: 768px) {
+        display: none;
+      }    
+      @media (min-width: 992px) {
+        display: block;
+      }    
+    }
+    &:last-child {
+      margin-bottom: 0;
+    }
+    .card-text span {
+      color: #ffffff66;
+      font-size: 12px;
+      top: 0px;
+    }
+    .fee-text{
+      border-bottom: 1px solid #ffffff1c;
+      width: fit-content;
+      margin: auto;
+      line-height: 1.45;
+      padding: 0px 2px;
+    }
+    .fiat {
+      display: block;
+      font-size: 14px !important;
+    }
+  }
+}
+
+.loading-container {
+  min-height: 76px;
+}
+
+.card-text {
+  .skeleton-loader {
+    width: 100%;
+    display: block;
+    &:first-child {
+      max-width: 90px;
+      margin: 15px auto 3px;
+    }
+    &:last-child {
+      margin: 10px auto 3px;
+      max-width: 55px;
+    }
+  }
+}
+
+.widget-toggler {
+  font-size: 12px;
+  position: absolute;
+  top: -20px;
+  right: 3px;
+  text-align: right;
+}
+
+.toggler-option {
+  text-decoration: none;
+}
+
+.inactive {
+  color: #ffffff66;
+}

frontend/src/app/lightning/channels-statistics/channels-statistics.component.ts

@@ -0,0 +1,22 @@
+import { ChangeDetectionStrategy, Component, Input, OnInit } from '@angular/core';
+import { Observable } from 'rxjs';
+
+@Component({
+  selector: 'app-channels-statistics',
+  templateUrl: './channels-statistics.component.html',
+  styleUrls: ['./channels-statistics.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class ChannelsStatisticsComponent implements OnInit {
+  @Input() statistics$: Observable<any>;
+  mode: string = 'avg';
+
+  constructor() { }
+
+  ngOnInit(): void {
+  }
+
+  switchMode(mode: 'avg' | 'med') {
+    this.mode = mode;
+  }
+}

frontend/src/app/lightning/lightning-api.service.ts

@@ -0,0 +1,65 @@
+import { Injectable } from '@angular/core';
+import { HttpClient, HttpParams } from '@angular/common/http';
+import { Observable } from 'rxjs';
+import { StateService } from '../services/state.service';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class LightningApiService {
+  private apiBasePath = ''; // network path is /testnet, etc. or '' for mainnet
+
+  constructor(
+    private httpClient: HttpClient,
+    private stateService: StateService,
+  ) {
+    this.apiBasePath = ''; // assume mainnet by default
+    this.stateService.networkChanged$.subscribe((network) => {
+      if (network === 'bisq' && !this.stateService.env.BISQ_SEPARATE_BACKEND) {
+        network = '';
+      }
+      this.apiBasePath = network ? '/' + network : '';
+    });
+  }
+
+  getNode$(publicKey: string): Observable<any> {
+    return this.httpClient.get<any>(this.apiBasePath + '/api/v1/lightning/nodes/' + publicKey);
+  }
+
+  getChannel$(shortId: string): Observable<any> {
+    return this.httpClient.get<any>(this.apiBasePath + '/api/v1/lightning/channels/' + shortId);
+  }
+
+  getChannelsByNodeId$(publicKey: string, index: number = 0, status = 'open'): Observable<any> {
+    let params = new HttpParams()
+      .set('public_key', publicKey)
+      .set('index', index)
+      .set('status', status)
+    ;
+
+    return this.httpClient.get<any>(this.apiBasePath + '/api/v1/lightning/channels', { params, observe: 'response' });
+  }
+
+  getLatestStatistics$(): Observable<any> {
+    return this.httpClient.get<any>(this.apiBasePath + '/api/v1/lightning/statistics/latest');
+  }
+
+  listNodeStats$(publicKey: string): Observable<any> {
+    return this.httpClient.get<any>(this.apiBasePath + '/api/v1/lightning/nodes/' + publicKey + '/statistics');
+  }
+
+  listTopNodes$(): Observable<any> {
+    return this.httpClient.get<any>(this.apiBasePath + '/api/v1/lightning/nodes/top');
+  }
+
+  listChannelStats$(publicKey: string): Observable<any> {
+    return this.httpClient.get<any>(this.apiBasePath + '/channels/' + publicKey + '/statistics');
+  }
+
+  listStatistics$(interval: string | undefined): Observable<any> {
+    return this.httpClient.get<any>(
+      this.apiBasePath + '/api/v1/lightning/statistics' +
+      (interval !== undefined ? `/${interval}` : ''), { observe: 'response' }
+    );
+  }
+}

frontend/src/app/lightning/lightning-dashboard/lightning-dashboard.component.html

@@ -0,0 +1,70 @@
+<div class="container-xl dashboard-container">
+
+  <div class="row row-cols-1 row-cols-md-2">
+
+    <div class="col">
+      <div class="main-title">
+        <span i18n="lightning.statistics-title">Network Statistics</span>&nbsp;
+      </div>
+      <div class="card-wrapper">
+        <div class="card" style="height: 123px">
+          <div class="card-body more-padding">
+            <app-node-statistics [statistics$]="statistics$"></app-node-statistics>
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <div class="col">
+      <div class="main-title">
+        <span i18n="lightning.statistics-title">Channels Statistics</span>&nbsp;
+      </div>
+      <div class="card-wrapper">
+        <div class="card" style="height: 123px">
+          <div class="card-body more-padding">
+            <app-channels-statistics [statistics$]="statistics$"></app-channels-statistics>
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <div class="col">
+      <div class="card">
+        <div class="card-body">
+          <app-nodes-networks-chart [widget]=true></app-nodes-networks-chart>
+          <div class="mt-1"><a [routerLink]="['/graphs/lightning/nodes-networks' | relativeUrl]" i18n="dashboard.view-more">View more &raquo;</a></div>
+        </div>
+      </div>
+    </div>
+
+    <div class="col">
+      <div class="card">
+        <div class="card-body">
+          <app-lightning-statistics-chart [widget]=true></app-lightning-statistics-chart>
+          <div class="mt-1"><a [routerLink]="['/graphs/lightning/capacity' | relativeUrl]" i18n="dashboard.view-more">View more &raquo;</a></div>
+        </div>
+      </div>
+    </div>
+
+    <div class="col">
+      <div class="card">
+        <div class="card-body">
+          <h5 class="card-title">Top Capacity Nodes</h5>
+          <app-nodes-list [nodes$]="nodesByCapacity$"></app-nodes-list>
+          <div><a [routerLink]="['/lightning/nodes' | relativeUrl]" i18n="dashboard.view-more">View more &raquo;</a></div>
+        </div>
+      </div>
+    </div>
+
+    <div class="col">
+      <div class="card">
+        <div class="card-body">
+          <h5 class="card-title">Most Connected Nodes</h5>
+          <app-nodes-list [nodes$]="nodesByChannels$"></app-nodes-list>
+          <div><a [routerLink]="['/lightning/nodes' | relativeUrl]" i18n="dashboard.view-more">View more &raquo;</a></div>
+        </div>
+      </div>
+    </div>
+
+  </div>
+</div>

frontend/src/app/lightning/lightning-dashboard/lightning-dashboard.component.scss

@@ -0,0 +1,80 @@
+.dashboard-container {
+  padding-bottom: 60px;
+  text-align: center;
+  margin-top: 0.5rem;
+  @media (min-width: 992px) {
+    padding-bottom: 0px;
+  }
+  .col {
+    margin-bottom: 1.5rem;
+  }
+}
+
+.card {
+  background-color: #1d1f31;
+}
+
+.card-title {
+  font-size: 1rem;
+  color: #4a68b9;
+}
+.card-title > a {
+  color: #4a68b9;
+}
+
+.card-body {
+  padding: 1.25rem 1rem 0.75rem 1rem;
+}
+.card-body.pool-ranking {
+  padding: 1.25rem 0.25rem 0.75rem 0.25rem;
+}
+.card-text {
+  font-size: 22px;
+}
+
+
+.main-title {
+  position: relative;
+  color: #ffffff91;
+  margin-top: -13px;
+  font-size: 10px;
+  text-transform: uppercase;
+  font-weight: 500;
+  text-align: center;
+  padding-bottom: 3px;
+}
+
+.more-padding {
+  padding: 18px;
+}
+
+.card-wrapper {
+  .card {
+    height: auto !important;
+  }
+  .card-body {
+    display: flex;
+    flex: inherit;
+    text-align: center;
+    flex-direction: column;
+    justify-content: space-around;
+    padding: 22px 20px;
+  }
+}
+
+.skeleton-loader {
+  width: 100%;
+  display: block;
+  &:first-child {
+    max-width: 90px;
+    margin: 15px auto 3px;
+  }
+  &:last-child {
+    margin: 10px auto 3px;
+    max-width: 55px;
+  }
+}
+
+.card-text {
+  font-size: 22px;
+}

frontend/src/app/lightning/lightning-dashboard/lightning-dashboard.component.ts

@@ -0,0 +1,41 @@
+import { ChangeDetectionStrategy, Component, OnInit } from '@angular/core';
+import { Observable } from 'rxjs';
+import { map, share } from 'rxjs/operators';
+import { SeoService } from 'src/app/services/seo.service';
+import { LightningApiService } from '../lightning-api.service';
+
+@Component({
+  selector: 'app-lightning-dashboard',
+  templateUrl: './lightning-dashboard.component.html',
+  styleUrls: ['./lightning-dashboard.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class LightningDashboardComponent implements OnInit {
+  nodesByCapacity$: Observable<any>;
+  nodesByChannels$: Observable<any>;
+  statistics$: Observable<any>;
+
+  constructor(
+    private lightningApiService: LightningApiService,
+    private seoService: SeoService,
+  ) { }
+
+  ngOnInit(): void {
+    this.seoService.setTitle($localize`Lightning Dashboard`);
+
+    const sharedObservable = this.lightningApiService.listTopNodes$().pipe(share());
+
+    this.nodesByCapacity$ = sharedObservable
+      .pipe(
+        map((object) => object.topByCapacity),
+      );
+
+    this.nodesByChannels$ = sharedObservable
+      .pipe(
+        map((object) => object.topByChannels),
+      );
+
+    this.statistics$ = this.lightningApiService.getLatestStatistics$().pipe(share());
+  }
+
+}

frontend/src/app/lightning/lightning-wrapper/lightning-wrapper.component.html

@@ -0,0 +1 @@
+<router-outlet></router-outlet>

frontend/src/app/lightning/lightning-wrapper/lightning-wrapper.component.ts

@@ -0,0 +1,20 @@
+import { ChangeDetectionStrategy, Component, OnInit } from '@angular/core';
+import { WebsocketService } from 'src/app/services/websocket.service';
+
+@Component({
+  selector: 'app-lightning-wrapper',
+  templateUrl: './lightning-wrapper.component.html',
+  styleUrls: ['./lightning-wrapper.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class LightningWrapperComponent implements OnInit {
+
+  constructor(
+    private websocketService: WebsocketService,
+  ) { }
+
+  ngOnInit() {
+    this.websocketService.want(['blocks']);
+  }
+
+}

frontend/src/app/lightning/lightning.module.ts

@@ -0,0 +1,48 @@
+import { NgModule } from '@angular/core';
+import { CommonModule } from '@angular/common';
+import { SharedModule } from '../shared/shared.module';
+import { LightningDashboardComponent } from './lightning-dashboard/lightning-dashboard.component';
+import { LightningApiService } from './lightning-api.service';
+import { NodesListComponent } from './nodes-list/nodes-list.component';
+import { RouterModule } from '@angular/router';
+import { NodeStatisticsComponent } from './node-statistics/node-statistics.component';
+import { NodeComponent } from './node/node.component';
+import { LightningRoutingModule } from './lightning.routing.module';
+import { ChannelsListComponent } from './channels-list/channels-list.component';
+import { ChannelComponent } from './channel/channel.component';
+import { LightningWrapperComponent } from './lightning-wrapper/lightning-wrapper.component';
+import { ChannelBoxComponent } from './channel/channel-box/channel-box.component';
+import { ClosingTypeComponent } from './channel/closing-type/closing-type.component';
+import { LightningStatisticsChartComponent } from './statistics-chart/lightning-statistics-chart.component';
+import { NodeStatisticsChartComponent } from './node-statistics-chart/node-statistics-chart.component';
+import { GraphsModule } from '../graphs/graphs.module';
+import { NodesNetworksChartComponent } from './nodes-networks-chart/nodes-networks-chart.component';
+import { ChannelsStatisticsComponent } from './channels-statistics/channels-statistics.component';
+@NgModule({
+  declarations: [
+    LightningDashboardComponent,
+    NodesListComponent,
+    NodeStatisticsComponent,
+    NodeStatisticsChartComponent,
+    NodeComponent,
+    ChannelsListComponent,
+    ChannelComponent,
+    LightningWrapperComponent,
+    ChannelBoxComponent,
+    ClosingTypeComponent,
+    LightningStatisticsChartComponent,
+    NodesNetworksChartComponent,
+    ChannelsStatisticsComponent,
+  ],
+  imports: [
+    CommonModule,
+    SharedModule,
+    RouterModule,
+    LightningRoutingModule,
+    GraphsModule,
+  ],
+  providers: [
+    LightningApiService,
+  ]
+})
+export class LightningModule { }

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

@@ -0,0 +1,41 @@
+import { NgModule } from '@angular/core';
+import { RouterModule, Routes } from '@angular/router';
+import { LightningDashboardComponent } from './lightning-dashboard/lightning-dashboard.component';
+import { LightningWrapperComponent } from './lightning-wrapper/lightning-wrapper.component';
+import { NodeComponent } from './node/node.component';
+import { ChannelComponent } from './channel/channel.component';
+
+const routes: Routes = [
+    {
+      path: '',
+      component: LightningWrapperComponent,
+      children: [
+        {
+          path: '',
+          component: LightningDashboardComponent,
+        },
+        {
+          path: 'node/:public_key',
+          component: NodeComponent,
+        },
+        {
+          path: 'channel/:short_id',
+          component: ChannelComponent,
+        },
+        {
+          path: '**',
+          redirectTo: ''
+        }
+      ]
+    },
+    {
+      path: '**',
+      redirectTo: ''
+    }
+];
+
+@NgModule({
+  imports: [RouterModule.forChild(routes)],
+  exports: [RouterModule]
+})
+export class LightningRoutingModule { }

frontend/src/app/lightning/node-statistics-chart/node-statistics-chart.component.html

@@ -0,0 +1,8 @@
+<div class="full-container">
+
+  <div [class]="!widget ? 'chart' : 'chart-widget'" echarts [initOpts]="chartInitOptions" [options]="chartOptions" (chartInit)="onChartInit($event)"></div>
+  <div class="text-center loadingGraphs" *ngIf="isLoading">
+    <div class="spinner-border text-light"></div>
+  </div>
+
+</div>

frontend/src/app/lightning/node-statistics-chart/node-statistics-chart.component.scss

@@ -0,0 +1,129 @@
+
+.main-title {
+  position: relative;
+  color: #ffffff91;
+  margin-top: -13px;
+  font-size: 10px;
+  text-transform: uppercase;
+  font-weight: 500;
+  text-align: center;
+  padding-bottom: 3px;
+}
+
+.full-container {
+  padding: 0px 15px;
+  width: 100%;
+  /* min-height: 500px; */
+  height: calc(100% - 150px);
+  @media (max-width: 992px) {
+    height: 100%;
+    padding-bottom: 100px;
+  };
+}
+/*
+.chart {
+  width: 100%;
+  height: 100%;
+  padding-bottom: 20px;
+  padding-right: 10px;
+  @media (max-width: 992px) {
+    padding-bottom: 25px;
+  }
+  @media (max-width: 829px) {
+    padding-bottom: 50px;
+  }
+  @media (max-width: 767px) {
+    padding-bottom: 25px;
+  }
+  @media (max-width: 629px) {
+    padding-bottom: 55px;
+  }
+  @media (max-width: 567px) {
+    padding-bottom: 55px;
+  }
+}
+*/
+.chart-widget {
+  width: 100%;
+  height: 100%;
+  max-height: 270px;
+}
+
+.formRadioGroup {
+  margin-top: 6px;
+  display: flex;
+  flex-direction: column;
+  @media (min-width: 991px) {
+    position: relative;
+    top: -65px;
+  }
+  @media (min-width: 830px) and (max-width: 991px) {
+    position: relative;
+    top: 0px;
+  }
+  @media (min-width: 830px) {
+    flex-direction: row;
+    float: right;
+    margin-top: 0px;
+  }
+  .btn-sm {
+    font-size: 9px;
+    @media (min-width: 830px) {
+      font-size: 14px;
+    }
+  }
+}
+
+.pool-distribution {
+  min-height: 56px;
+  display: block;
+  @media (min-width: 485px) {
+    display: flex;
+    flex-direction: row;
+  }
+  h5 {
+    margin-bottom: 10px;
+  }
+  .item {
+    width: 50%;
+    display: inline-block;
+    margin: 0px auto 20px;
+    &:nth-child(2) {
+      order: 2;
+      @media (min-width: 485px) {
+        order: 3;
+      }
+    }
+    &:nth-child(3) {
+      order: 3;
+      @media (min-width: 485px) {
+        order: 2;
+        display: block;
+      }
+      @media (min-width: 768px) {
+        display: none;
+      }
+      @media (min-width: 992px) {
+        display: block;
+      }
+    }
+    .card-title {
+      font-size: 1rem;
+      color: #4a68b9;
+    }
+    .card-text {
+      font-size: 18px;
+      span {
+        color: #ffffff66;
+        font-size: 12px;
+      }
+    }
+  }
+}
+
+.skeleton-loader {
+  width: 100%;
+  display: block;
+  max-width: 80px;
+  margin: 15px auto 3px;
+}

frontend/src/app/lightning/node-statistics-chart/node-statistics-chart.component.ts

@@ -0,0 +1,287 @@
+import { Component, Inject, Input, LOCALE_ID, OnInit, HostBinding } from '@angular/core';
+import { EChartsOption } from 'echarts';
+import { Observable } from 'rxjs';
+import { switchMap, tap } from 'rxjs/operators';
+import { formatNumber } from '@angular/common';
+import { FormGroup } from '@angular/forms';
+import { StorageService } from 'src/app/services/storage.service';
+import { download } from 'src/app/shared/graphs.utils';
+import { LightningApiService } from '../lightning-api.service';
+import { ActivatedRoute, ParamMap } from '@angular/router';
+
+@Component({
+  selector: 'app-node-statistics-chart',
+  templateUrl: './node-statistics-chart.component.html',
+  styleUrls: ['./node-statistics-chart.component.scss'],
+  styles: [`
+    .loadingGraphs {
+      position: absolute;
+      top: 50%;
+      left: calc(50% - 15px);
+      z-index: 100;
+    }
+  `],
+})
+export class NodeStatisticsChartComponent implements OnInit {
+  @Input() publicKey: string;
+  @Input() right: number | string = 65;
+  @Input() left: number | string = 55;
+  @Input() widget = false;
+
+  miningWindowPreference: string;
+  radioGroupForm: FormGroup;
+
+  chartOptions: EChartsOption = {};
+  chartInitOptions = {
+    renderer: 'svg',
+  };
+
+  @HostBinding('attr.dir') dir = 'ltr';
+
+  blockSizesWeightsObservable$: Observable<any>;
+  isLoading = true;
+  formatNumber = formatNumber;
+  timespan = '';
+  chartInstance: any = undefined;
+
+  constructor(
+    @Inject(LOCALE_ID) public locale: string,
+    private lightningApiService: LightningApiService,
+    private storageService: StorageService,
+    private activatedRoute: ActivatedRoute,
+  ) {
+  }
+
+  ngOnInit(): void {
+
+    this.activatedRoute.paramMap
+      .pipe(
+        switchMap((params: ParamMap) => {
+          this.isLoading = true;
+          return this.lightningApiService.listNodeStats$(params.get('public_key'))
+            .pipe(
+              tap((data) => {
+                this.prepareChartOptions({
+                  channels: data.map(val => [val.added * 1000, val.channels]),
+                  capacity: data.map(val => [val.added * 1000, val.capacity]),
+                });
+                this.isLoading = false;
+              }),
+            );
+        }),
+      ).subscribe(() => {
+      });
+  }
+
+  prepareChartOptions(data) {
+    let title: object;
+    if (data.channels.length === 0) {
+      title = {
+        textStyle: {
+          color: 'grey',
+          fontSize: 15
+        },
+        text: `Loading`,
+        left: 'center',
+        top: 'center'
+      };
+    }
+
+    this.chartOptions = {
+      title: title,
+      animation: false,
+      color: [
+        '#FDD835',
+        '#D81B60',
+      ],
+      grid: {
+        top: 30,
+        bottom: 70,
+        right: this.right,
+        left: this.left,
+      },
+      tooltip: {
+        show: !this.isMobile(),
+        trigger: 'axis',
+        axisPointer: {
+          type: 'line'
+        },
+        backgroundColor: 'rgba(17, 19, 31, 1)',
+        borderRadius: 4,
+        shadowColor: 'rgba(0, 0, 0, 0.5)',
+        textStyle: {
+          color: '#b1b1b1',
+          align: 'left',
+        },
+        borderColor: '#000',
+        formatter: (ticks) => {
+          let sizeString = '';
+          let weightString = '';
+
+          for (const tick of ticks) {
+            if (tick.seriesIndex === 0) { // Channels
+              sizeString = `${tick.marker} ${tick.seriesName}: ${formatNumber(tick.data[1], this.locale, '1.0-0')}`;
+            } else if (tick.seriesIndex === 1) { // Capacity
+              weightString = `${tick.marker} ${tick.seriesName}: ${formatNumber(tick.data[1] / 100000000, this.locale, '1.0-0')} BTC`;
+            }
+          }
+
+          const date = new Date(ticks[0].data[0]).toLocaleDateString(this.locale, { year: 'numeric', month: 'short', day: 'numeric' });
+
+          const tooltip = `<b style="color: white; margin-left: 18px">${date}</b><br>
+            <span>${sizeString}</span><br>
+            <span>${weightString}</span>`;
+
+          return tooltip;
+        }
+      },
+      xAxis: data.channels.length === 0 ? undefined : {
+        type: 'time',
+        splitNumber: this.isMobile() ? 5 : 10,
+        axisLabel: {
+          hideOverlap: true,
+        }
+      },
+      legend: data.channels.length === 0 ? undefined : {
+        padding: 10,
+        data: [
+          {
+            name: 'Channels',
+            inactiveColor: 'rgb(110, 112, 121)',
+            textStyle: {
+              color: 'white',
+            },
+            icon: 'roundRect',
+          },
+          {
+            name: 'Capacity',
+            inactiveColor: 'rgb(110, 112, 121)',
+            textStyle: {
+              color: 'white',
+            },
+            icon: 'roundRect',
+          },
+        ],
+        selected: JSON.parse(this.storageService.getValue('sizes_ln_legend'))  ?? {
+          'Channels': true,
+          'Capacity': true,
+        }
+      },
+      yAxis: data.channels.length === 0 ? undefined : [
+        {
+          min: (value) => {
+            return value.min * 0.9;
+          },
+          type: 'value',
+          axisLabel: {
+            color: 'rgb(110, 112, 121)',
+            formatter: (val) => {
+              return `${Math.round(val)}`;
+            }
+          },
+          splitLine: {
+            lineStyle: {
+              type: 'dotted',
+              color: '#ffffff66',
+              opacity: 0.25,
+            }
+          },
+        },
+        {
+          min: (value) => {
+            return value.min * 0.9;
+          },
+          type: 'value',
+          position: 'right',
+          axisLabel: {
+            color: 'rgb(110, 112, 121)',
+            formatter: (val) => {
+              return `${val / 100000000} BTC`;
+            }
+          },
+          splitLine: {
+            show: false,
+          }
+        }
+      ],
+      series: data.channels.length === 0 ? [] : [
+        {
+          zlevel: 1,
+          name: 'Channels',
+          showSymbol: false,
+          symbol: 'none',
+          data: data.channels,
+          type: 'line',
+          step: 'middle',
+          lineStyle: {
+            width: 2,
+          },
+          markLine: {
+            silent: true,
+            symbol: 'none',
+            lineStyle: {
+              type: 'solid',
+              color: '#ffffff66',
+              opacity: 1,
+              width: 1,
+            },
+            data: [{
+              yAxis: 1,
+              label: {
+                position: 'end',
+                show: true,
+                color: '#ffffff',
+                formatter: `1 MB`
+              }
+            }],
+          }
+        },
+        {
+          zlevel: 0,
+          yAxisIndex: 1,
+          name: 'Capacity',
+          showSymbol: false,
+          symbol: 'none',
+          stack: 'Total',
+          data: data.capacity,
+          areaStyle: {},
+          type: 'line',
+          step: 'middle',
+        }
+      ],
+    };
+  }
+
+  onChartInit(ec) {
+    if (this.chartInstance !== undefined) {
+      return;
+    }
+
+    this.chartInstance = ec;
+
+    this.chartInstance.on('legendselectchanged', (e) => {
+      this.storageService.setValue('sizes_ln_legend', JSON.stringify(e.selected));
+    });
+  }
+
+  isMobile() {
+    return (window.innerWidth <= 767.98);
+  }
+
+  onSaveChart() {
+    // @ts-ignore
+    const prevBottom = this.chartOptions.grid.bottom;
+    const now = new Date();
+    // @ts-ignore
+    this.chartOptions.grid.bottom = 40;
+    this.chartOptions.backgroundColor = '#11131f';
+    this.chartInstance.setOption(this.chartOptions);
+    download(this.chartInstance.getDataURL({
+      pixelRatio: 2,
+    }), `block-sizes-weights-${this.timespan}-${Math.round(now.getTime() / 1000)}.svg`);
+    // @ts-ignore
+    this.chartOptions.grid.bottom = prevBottom;
+    this.chartOptions.backgroundColor = 'none';
+    this.chartInstance.setOption(this.chartOptions);
+  }
+}

frontend/src/app/lightning/node-statistics/node-statistics.component.html

@@ -0,0 +1,80 @@
+<div class="fee-estimation-wrapper" *ngIf="statistics$ | async as statistics; else loadingReward">
+  <div class="fee-estimation-container">
+    <div class="item">
+      <h5 class="card-title" i18n="mining.average-fee">Capacity</h5>
+      <div class="card-text" i18n-ngbTooltip="mining.average-fee" ngbTooltip="Percentage change past week"
+        placement="bottom">
+        <div class="fee-text">
+          <app-amount [satoshis]="statistics.latest?.total_capacity" digitsInfo="1.2-2"></app-amount>
+        </div>
+        <span class="fiat" *ngIf="statistics.previous">
+          <app-change [current]="statistics.latest.total_capacity" [previous]="statistics.previous.total_capacity">
+          </app-change>
+        </span>
+      </div>
+    </div>
+    <div class="item">
+      <h5 class="card-title" i18n="mining.rewards">Nodes</h5>
+      <div class="card-text" i18n-ngbTooltip="mining.rewards-desc" ngbTooltip="Percentage change past week"
+        placement="bottom">
+        <div class="fee-text">
+          {{ statistics.latest?.node_count || 0 | number }}
+        </div>
+        <span class="fiat" *ngIf="statistics.previous">
+          <app-change [current]="statistics.latest.node_count" [previous]="statistics.previous.node_count"></app-change>
+        </span>
+      </div>
+    </div>
+    <div class="item">
+      <h5 class="card-title" i18n="mining.rewards-per-tx">Channels</h5>
+      <div class="card-text" i18n-ngbTooltip="mining.rewards-per-tx-desc" ngbTooltip="Percentage change past week"
+        placement="bottom">
+        <div class="fee-text">
+          {{ statistics.latest?.channel_count || 0 | number }}
+        </div>
+        <span class="fiat" *ngIf="statistics.previous">
+          <app-change [current]="statistics.latest.channel_count" [previous]="statistics.previous.channel_count">
+          </app-change>
+        </span>
+      </div>
+    </div>
+    <!--
+    <div class="item">
+      <h5 class="card-title" i18n="mining.average-fee">Average Channel</h5>
+      <div class="card-text" i18n-ngbTooltip="mining.average-fee"
+        ngbTooltip="Fee paid on average for each transaction in the past 144 blocks" placement="bottom">
+        <app-amount [satoshis]="statistics.latest.average_channel_size" digitsInfo="1.2-3"></app-amount>
+        <span class="fiat">
+          <app-change [current]="statistics.latest.average_channel_size" [previous]="statistics.previous.average_channel_size"></app-change>
+        </span>
+      </div>
+    </div>
+    -->
+  </div>
+</div>
+
+<ng-template #loadingReward>
+  <div class="fee-estimation-container loading-container">
+    <div class="item">
+      <h5 class="card-title" i18n="mining.rewards">Nodes</h5>
+      <div class="card-text">
+        <div class="skeleton-loader"></div>
+        <div class="skeleton-loader"></div>
+      </div>
+    </div>
+    <div class="item">
+      <h5 class="card-title" i18n="mining.rewards-per-tx">Channels</h5>
+      <div class="card-text">
+        <div class="skeleton-loader"></div>
+        <div class="skeleton-loader"></div>
+      </div>
+    </div>
+    <div class="item">
+      <h5 class="card-title" i18n="mining.average-fee">Average Channel</h5>
+      <div class="card-text">
+        <div class="skeleton-loader"></div>
+        <div class="skeleton-loader"></div>
+      </div>
+    </div>
+  </div>
+</ng-template>

frontend/src/app/lightning/node-statistics/node-statistics.component.scss

@@ -0,0 +1,85 @@
+.card-title {
+  color: #4a68b9;
+  font-size: 10px;
+  margin-bottom: 4px;  
+  font-size: 1rem;
+}
+
+.card-text {
+  font-size: 22px;
+  span {
+    font-size: 11px;
+    position: relative;
+    top: -2px;
+    display: inline-flex;
+  }
+  .green-color {
+    display: block;
+  }
+}
+
+.fee-estimation-container {
+  display: flex;
+  justify-content: space-between;
+  @media (min-width: 376px) {
+    flex-direction: row;
+  }  
+  .item {
+    max-width: 150px;
+    margin: 0;
+    width: -webkit-fill-available;
+    @media (min-width: 376px) {
+      margin: 0 auto 0px;
+    }    
+    &:first-child{
+      display: none;
+      @media (min-width: 485px) {
+        display: block;
+      }    
+      @media (min-width: 768px) {
+        display: none;
+      }    
+      @media (min-width: 992px) {
+        display: block;
+      }    
+    }
+    &:last-child {
+      margin-bottom: 0;
+    }
+    .card-text span {
+      color: #ffffff66;
+      font-size: 12px;
+      top: 0px;
+    }
+    .fee-text{
+      border-bottom: 1px solid #ffffff1c;
+      width: fit-content;
+      margin: auto;
+      line-height: 1.45;
+      padding: 0px 2px;
+    }
+    .fiat {
+      display: block;
+      font-size: 14px !important;
+    }
+  }
+}
+
+.loading-container {
+  min-height: 76px;
+}
+
+.card-text {
+  .skeleton-loader {
+    width: 100%;
+    display: block;
+    &:first-child {
+      max-width: 90px;
+      margin: 15px auto 3px;
+    }
+    &:last-child {
+      margin: 10px auto 3px;
+      max-width: 55px;
+    }
+  }
+}

frontend/src/app/lightning/node-statistics/node-statistics.component.ts

@@ -0,0 +1,18 @@
+import { ChangeDetectionStrategy, Component, Input, OnInit } from '@angular/core';
+import { Observable } from 'rxjs';
+
+@Component({
+  selector: 'app-node-statistics',
+  templateUrl: './node-statistics.component.html',
+  styleUrls: ['./node-statistics.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class NodeStatisticsComponent implements OnInit {
+  @Input() statistics$: Observable<any>;
+
+  constructor() { }
+
+  ngOnInit(): void {
+  }
+
+}

frontend/src/app/lightning/node/node.component.html

@@ -0,0 +1,100 @@
+<div class="container-xl" *ngIf="(node$ | async) as node">
+  <div class="title-container mb-2">
+    <h1 class="mb-0">{{ node.alias }}</h1>
+    <span class="tx-link">
+      <a [routerLink]="['/lightning/node' | relativeUrl, node.public_key]">{{ node.public_key | shortenString : 12 }}</a>
+      <app-clipboard [text]="node.public_key"></app-clipboard>
+    </span>
+  </div>
+
+  <div class="clearfix"></div>
+
+    <div class="box">
+
+      <div class="row">
+        <div class="col-md">
+          <table class="table table-borderless table-striped">
+            <tbody>
+              <tr>
+                <td i18n="address.total-received">Total capacity</td>
+                <td>
+                  <app-sats [satoshis]="node.capacity"></app-sats><app-fiat [value]="node.capacity" digitsInfo="1.0-0"></app-fiat>
+                </td>
+              </tr>
+              <tr>
+                <td i18n="address.total-sent">Total channels</td>
+                <td>
+                  {{ node.channel_count }}
+                </td>
+              </tr>
+              <tr>
+                <td i18n="address.total-received">Average channel size</td>
+                <td>
+                  <app-sats [satoshis]="node.channels_capacity_avg"></app-sats><app-fiat [value]="node.channels_capacity_avg" digitsInfo="1.0-0"></app-fiat>
+                </td>
+              </tr>
+            </tbody>
+          </table>
+        </div>
+        <div class="w-100 d-block d-md-none"></div>
+        <div class="col-md">
+          <table class="table table-borderless table-striped">
+            <tbody>
+              <tr>
+                <td i18n="address.total-received">First seen</td>
+                <td>
+                  <app-timestamp [dateString]="node.first_seen"></app-timestamp>
+                </td>
+              </tr>
+              <tr>
+                <td i18n="address.total-sent">Last update</td>
+                <td>
+                  <app-timestamp [dateString]="node.updated_at"></app-timestamp>
+                </td>
+              </tr>
+              <tr>
+                <td i18n="address.balance">Color</td>
+                <td><div [ngStyle]="{'color': node.color}">{{ node.color }}</div></td>
+              </tr>
+            </tbody>
+          </table>
+        </div>
+      </div>
+
+    </div>
+
+    <br>
+
+    <div class="input-group mb-3" *ngIf="node.socketsObject.length">
+      <div class="d-inline-block" ngbDropdown #myDrop="ngbDropdown" *ngIf="node.socketsObject.length > 1; else noDropdown">
+        <button class="btn btn-secondary dropdown-toggle" type="button" aria-expanded="false" ngbDropdownAnchor (focus)="myDrop.open()"><div class="dropdownLabel">{{ node.socketsObject[selectedSocketIndex].label }}</div></button>
+        <div ngbDropdownMenu aria-labelledby="dropdownManual">
+          <button *ngFor="let socket of node.socketsObject; let i = index;" ngbDropdownItem (click)="changeSocket(i)">{{ socket.label }}</button>
+        </div>
+      </div>
+      <ng-template #noDropdown>
+        <span class="input-group-text" id="basic-addon3">{{ node.socketsObject[selectedSocketIndex].label }}</span>
+      </ng-template>
+      <input type="text" class="form-control" aria-label="Text input with dropdown button" [value]="node.socketsObject[selectedSocketIndex].socket">
+      <button class="btn btn-secondary ml-1" type="button" id="inputGroupFileAddon04" (mouseover)="qrCodeVisible = true" (mouseout)="qrCodeVisible = false">
+        <fa-icon [icon]="['fas', 'qrcode']" [fixedWidth]="true"></fa-icon>
+        <div class="qr-wrapper" [hidden]="!qrCodeVisible">
+          <app-qrcode [size]="200" [data]="node.socketsObject[selectedSocketIndex].socket"></app-qrcode>
+        </div>
+      </button>
+      <button class="btn btn-secondary ml-1" type="button" id="inputGroupFileAddon04">
+        <app-clipboard [text]="node.socketsObject[selectedSocketIndex].socket"></app-clipboard>
+      </button>
+    </div>
+
+    <br>
+
+    <app-node-statistics-chart [publicKey]="node.public_key"></app-node-statistics-chart>
+    
+    <br>
+
+    <app-channels-list [publicKey]="node.public_key"></app-channels-list>
+
+</div>
+
+<br>

frontend/src/app/lightning/node/node.component.scss

@@ -0,0 +1,60 @@
+.title-container {
+  display: flex;
+  flex-direction: row;
+
+  @media (max-width: 768px) {
+    flex-direction: column;
+  }
+}
+
+.tx-link {
+  display: flex;
+	flex-grow: 1;
+	@media (min-width: 650px) {
+    align-self: end;
+    margin-left: 15px;
+    margin-top: 0px;
+    margin-bottom: -3px;
+	}
+	@media (min-width: 768px) {
+    margin-bottom: 4px;
+    top: 1px;
+    position: relative;
+	}
+	@media (max-width: 768px) {
+	  order: 2;
+	}
+}
+
+.qr-wrapper {
+  background-color: #FFF;
+  padding: 10px;
+  padding-bottom: 5px;
+  display: inline-block;
+
+  
+  position: absolute;
+  bottom: 50px;
+  left: -175px;
+  z-index: 100;
+}
+
+.dropdownLabel {
+  min-width: 50px;
+  display: inline-block;
+}
+
+#inputGroupFileAddon04 {
+  position: relative;
+}
+
+app-fiat {
+  display: block;
+  font-size: 13px;
+  @media (min-width: 768px) {
+    font-size: 14px;
+    display: inline-block;
+    margin-left: 10px;
+  }
+}
+

frontend/src/app/lightning/node/node.component.ts

@@ -0,0 +1,64 @@
+import { ChangeDetectionStrategy, Component, OnInit } from '@angular/core';
+import { ActivatedRoute, ParamMap } from '@angular/router';
+import { Observable } from 'rxjs';
+import { map, switchMap } from 'rxjs/operators';
+import { SeoService } from 'src/app/services/seo.service';
+import { LightningApiService } from '../lightning-api.service';
+
+@Component({
+  selector: 'app-node',
+  templateUrl: './node.component.html',
+  styleUrls: ['./node.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class NodeComponent implements OnInit {
+  node$: Observable<any>;
+  statistics$: Observable<any>;
+  publicKey$: Observable<string>;
+  selectedSocketIndex = 0;
+  qrCodeVisible = false;
+
+  constructor(
+    private lightningApiService: LightningApiService,
+    private activatedRoute: ActivatedRoute,
+    private seoService: SeoService,
+  ) { }
+
+  ngOnInit(): void {
+    this.node$ = this.activatedRoute.paramMap
+      .pipe(
+        switchMap((params: ParamMap) => {
+          return this.lightningApiService.getNode$(params.get('public_key'));
+        }),
+        map((node) => {
+          this.seoService.setTitle(`Node: ${node.alias}`);
+
+          const socketsObject = [];
+          for (const socket of node.sockets.split(',')) {
+            if (socket === '') {
+              continue;
+            }
+            let label = '';
+            if (socket.match(/(?:[0-9]{1,3}\.){3}[0-9]{1,3}/)) {
+              label = 'IPv4';
+            } else if (socket.indexOf('[') > -1) {
+              label = 'IPv6';
+            } else if (socket.indexOf('onion') > -1) {
+              label = 'Tor';
+            }
+            socketsObject.push({
+              label: label,
+              socket: node.public_key + '@' + socket,
+            });
+          }
+          node.socketsObject = socketsObject;
+          return node;
+        }),
+      );
+  }
+
+  changeSocket(index: number) {
+    this.selectedSocketIndex = index;
+  }
+
+}

frontend/src/app/lightning/nodes-list/nodes-list.component.html

@@ -0,0 +1,39 @@
+<div style="min-height: 295px">
+
+  <table class="table table-borderless">
+    <thead>
+      <th class="alias text-left" i18n="nodes.alias">Alias</th>
+      <th class="capacity text-right" i18n="node.capacity">Capacity</th>
+      <th class="channels text-right" i18n="node.channels">Channels</th>
+    </thead>
+    <tbody *ngIf="nodes$ | async as nodes; else skeleton">
+      <tr *ngFor="let node of nodes; let i = index;">
+        <td class="alias text-left">
+          <a [routerLink]="['/lightning/node' | relativeUrl, node.public_key]">{{ node.alias }}</a>
+        </td>
+        <td class="capacity text-right">
+          <app-amount [satoshis]="node.capacity" digitsInfo="1.2-2"></app-amount>
+        </td>
+        <td class="channels text-right">
+          {{ node.channels | number }}
+        </td>
+      </tr>
+    </tbody>
+    <ng-template #skeleton>
+      <tbody>
+        <tr *ngFor="let item of [1,2,3,4,5,6,7,8,9,10]">
+          <td class="alias text-left">
+            <span class="skeleton-loader"></span>
+          </td>
+          <td class="capacity text-right">
+            <span class="skeleton-loader"></span>
+          </td>
+          <td class="channels text-right">
+            <span class="skeleton-loader"></span>
+          </td>
+        </tr>
+      </tbody>
+    </ng-template>
+  </table>
+
+</div>