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Switching Electrum Client lib supporting auto reconnect.

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softsimon 2020-12-29 00:41:02 +07:00
parent 3c0fa71a10
commit a3644e23a7
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GPG Key ID: 488D7DCFB5A430D7
2 changed files with 31 additions and 10 deletions
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1
backend/package.json
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@ -29,6 +29,7 @@
"dependencies": { "dependencies": {
"@codewarriorr/electrum-client-js": "^0.1.1", "@codewarriorr/electrum-client-js": "^0.1.1",
"@mempool/bitcoin": "^3.0.2", "@mempool/bitcoin": "^3.0.2",
"@mempool/electrum-client": "^1.1.7",
"axios": "^0.21.0", "axios": "^0.21.0",
"crypto-js": "^4.0.0", "crypto-js": "^4.0.0",
"express": "^4.17.1", "express": "^4.17.1",

40
backend/src/api/bitcoin/electrum-api.ts
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@ -1,6 +1,5 @@
import config from '../../config'; import config from '../../config';
import { AbstractBitcoinApi } from './bitcoin-api-abstract-factory'; import { AbstractBitcoinApi } from './bitcoin-api-abstract-factory';
import * as ElectrumClient from '@codewarriorr/electrum-client-js';
import { IBitcoinApi } from './bitcoin-api.interface'; import { IBitcoinApi } from './bitcoin-api.interface';
import { IEsploraApi } from './esplora-api.interface'; import { IEsploraApi } from './esplora-api.interface';
import { IElectrumApi } from './electrum-api.interface'; import { IElectrumApi } from './electrum-api.interface';
@ -9,22 +8,43 @@ import * as hexEnc from 'crypto-js/enc-hex';
import BitcoinApi from './bitcoin-api'; import BitcoinApi from './bitcoin-api';
import bitcoinBaseApi from './bitcoin-base.api'; import bitcoinBaseApi from './bitcoin-base.api';
import mempool from '../mempool'; import mempool from '../mempool';
import logger from '../../logger';
// @ts-ignore
global.net = require('net');
// @ts-ignore
global.tls = require('tls');
import * as ElectrumClient from 'electrum-client';
class BitcoindElectrsApi extends BitcoinApi implements AbstractBitcoinApi { class BitcoindElectrsApi extends BitcoinApi implements AbstractBitcoinApi {
private electrumClient: any; private electrumClient: any;
constructor() { constructor() {
super(); super();
const electrumConfig = { client: 'mempool-v2', version: '1.4' };
const electrumPersistencePolicy = { retryPeriod: 10000, maxRetry: 1000, callback: null };
const electrumCallbacks = {
onConnect: (client, versionInfo) => { logger.info(`Connected to Electrum Server at ${config.ELECTRS.HOST}:${config.ELECTRS.PORT} (${JSON.stringify(versionInfo)})`); },
onClose: (client) => { logger.info(`Disconnected from Electrum Server at ${config.ELECTRS.HOST}:${config.ELECTRS.PORT}`); },
onError: (err) => { logger.err(`Electrum error: ${JSON.stringify(err)}`); },
onLog: (str) => { logger.debug(str); },
};
this.electrumClient = new ElectrumClient( this.electrumClient = new ElectrumClient(
config.ELECTRS.HOST,
config.ELECTRS.PORT, config.ELECTRS.PORT,
'ssl' config.ELECTRS.HOST,
config.ELECTRS.PORT === 50001 ? 'tcp' : 'tls',
null,
electrumCallbacks
); );
this.electrumClient.connect( this.electrumClient.initElectrum(electrumConfig, electrumPersistencePolicy)
'electrum-client-js', .then(() => {})
'1.4' .catch((err) => {
); logger.err(`Error connecting to Electrum Server at ${config.ELECTRS.HOST}:${config.ELECTRS.PORT}`);
});
} }
async $getRawTransaction(txId: string, skipConversion = false, addPrevout = false): Promise<IEsploraApi.Transaction> { async $getRawTransaction(txId: string, skipConversion = false, addPrevout = false): Promise<IEsploraApi.Transaction> {
@ -32,7 +52,7 @@ class BitcoindElectrsApi extends BitcoinApi implements AbstractBitcoinApi {
if (txInMempool && addPrevout) { if (txInMempool && addPrevout) {
return this.$addPrevouts(txInMempool); return this.$addPrevouts(txInMempool);
} }
const transaction: IBitcoinApi.Transaction = await this.electrumClient.blockchain_transaction_get(txId, true); const transaction: IBitcoinApi.Transaction = await this.electrumClient.blockchainTransaction_get(txId, true);
if (!transaction) { if (!transaction) {
throw new Error('Unable to get transaction: ' + txId); throw new Error('Unable to get transaction: ' + txId);
} }
@ -107,11 +127,11 @@ class BitcoindElectrsApi extends BitcoinApi implements AbstractBitcoinApi {
} }
private $getScriptHashBalance(scriptHash: string): Promise<IElectrumApi.ScriptHashBalance> { private $getScriptHashBalance(scriptHash: string): Promise<IElectrumApi.ScriptHashBalance> {
return this.electrumClient.blockchain_scripthash_getBalance(this.encodeScriptHash(scriptHash)); return this.electrumClient.blockchainScripthash_getBalance(this.encodeScriptHash(scriptHash));
} }
private $getScriptHashHistory(scriptHash: string): Promise<IElectrumApi.ScriptHashHistory[]> { private $getScriptHashHistory(scriptHash: string): Promise<IElectrumApi.ScriptHashHistory[]> {
return this.electrumClient.blockchain_scripthash_getHistory(this.encodeScriptHash(scriptHash)); return this.electrumClient.blockchainScripthash_getHistory(this.encodeScriptHash(scriptHash));
} }
private encodeScriptHash(scriptPubKey: string): string { private encodeScriptHash(scriptPubKey: string): string {