mempool/backend/src/index.ts
softsimon 1ae002385d
Merge branch 'simon/cpfp-frontend' into simon/bisq-dashboard
* simon/cpfp-frontend: (46 commits)
  Bugfix: Don't extend already extended transactions to not override the firstSeen property. fixes #390
  Shuffle mempool transactions before saving disk cache. (#398)
  Adding missing return after expressjs response.
  CPFP support (#395)
  Round sat/vB in fee rating tooltip. fixes #364
  Add the GNU AGPLv3 logo to About page
  Update package.json license tags
  Add recommended fee percentile config (#394)
  Fix typo in README (#392)
  Fix icon for Specter Wallet on About page
  Add link to Specter Wallet on our About page
  Add link to WARden Portfolio app as Community Integration on About page
  Delete MIT+CC license from Terms of Service, add AGPLv3 to About page
  Change mempool project license to GNU Affero General Public License v3
  Lower volume for sound effects (#385)
  Improve grammar, layout, and formatting of Terms of Service page
  Display all Project Contributors on About page using GitHub API (#382)
  Modify nginx.conf to cache HTML for 10m and static resources for 1h
  Proxy /api/v1/contributors from mempool.space, also fix HTTP headers
  Add link to Bisq's GitHub repo on About page
  ...
2021-03-21 06:12:41 +07:00

238 lines
10 KiB
TypeScript

import { Express, Request, Response, NextFunction } from 'express';
import * as express from 'express';
import * as http from 'http';
import * as WebSocket from 'ws';
import * as cluster from 'cluster';
import axios from 'axios';
import { checkDbConnection } from './database';
import config from './config';
import routes from './routes';
import blocks from './api/blocks';
import memPool from './api/mempool';
import diskCache from './api/disk-cache';
import statistics from './api/statistics';
import websocketHandler from './api/websocket-handler';
import fiatConversion from './api/fiat-conversion';
import bisq from './api/bisq/bisq';
import bisqMarkets from './api/bisq/markets';
import logger from './logger';
import backendInfo from './api/backend-info';
import loadingIndicators from './api/loading-indicators';
import mempool from './api/mempool';
class Server {
private wss: WebSocket.Server | undefined;
private server: http.Server | undefined;
private app: Express;
private currentBackendRetryInterval = 5;
constructor() {
this.app = express();
if (!config.MEMPOOL.SPAWN_CLUSTER_PROCS) {
this.startServer();
return;
}
if (cluster.isMaster) {
logger.notice(`Mempool Server (Master) is running on port ${config.MEMPOOL.HTTP_PORT} (${backendInfo.getShortCommitHash()})`);
const numCPUs = config.MEMPOOL.SPAWN_CLUSTER_PROCS;
for (let i = 0; i < numCPUs; i++) {
const env = { workerId: i };
const worker = cluster.fork(env);
worker.process['env'] = env;
}
cluster.on('exit', (worker, code, signal) => {
const workerId = worker.process['env'].workerId;
logger.warn(`Mempool Worker PID #${worker.process.pid} workerId: ${workerId} died. Restarting in 10 seconds... ${signal || code}`);
setTimeout(() => {
const env = { workerId: workerId };
const newWorker = cluster.fork(env);
newWorker.process['env'] = env;
}, 10000);
});
} else {
this.startServer(true);
}
}
async startServer(worker = false) {
logger.debug(`Starting Mempool Server${worker ? ' (worker)' : ''}... (${backendInfo.getShortCommitHash()})`);
this.app
.use((req: Request, res: Response, next: NextFunction) => {
res.setHeader('Access-Control-Allow-Origin', '*');
next();
})
.use(express.urlencoded({ extended: true }))
.use(express.json());
this.server = http.createServer(this.app);
this.wss = new WebSocket.Server({ server: this.server });
this.setUpWebsocketHandling();
diskCache.loadMempoolCache();
if (config.DATABASE.ENABLED) {
await checkDbConnection();
}
if (config.STATISTICS.ENABLED && config.DATABASE.ENABLED) {
statistics.startStatistics();
}
fiatConversion.startService();
this.setUpHttpApiRoutes();
this.runMainUpdateLoop();
if (config.BISQ_BLOCKS.ENABLED) {
bisq.startBisqService();
bisq.setPriceCallbackFunction((price) => websocketHandler.setExtraInitProperties('bsq-price', price));
blocks.setNewBlockCallback(bisq.handleNewBitcoinBlock.bind(bisq));
}
if (config.BISQ_MARKETS.ENABLED) {
bisqMarkets.startBisqService();
}
this.server.listen(config.MEMPOOL.HTTP_PORT, () => {
if (worker) {
logger.info(`Mempool Server worker #${process.pid} started`);
} else {
logger.notice(`Mempool Server is running on port ${config.MEMPOOL.HTTP_PORT}`);
}
});
}
async runMainUpdateLoop() {
try {
await memPool.$updateMemPoolInfo();
await blocks.$updateBlocks();
await memPool.$updateMempool();
setTimeout(this.runMainUpdateLoop.bind(this), config.MEMPOOL.POLL_RATE_MS);
this.currentBackendRetryInterval = 5;
} catch (e) {
const loggerMsg = `runMainLoop error: ${(e.message || e)}. Retrying in ${this.currentBackendRetryInterval} sec.`;
if (this.currentBackendRetryInterval > 5) {
logger.warn(loggerMsg);
mempool.setOutOfSync();
} else {
logger.debug(loggerMsg);
}
logger.debug(JSON.stringify(e));
setTimeout(this.runMainUpdateLoop.bind(this), 1000 * this.currentBackendRetryInterval);
this.currentBackendRetryInterval *= 2;
this.currentBackendRetryInterval = Math.min(this.currentBackendRetryInterval, 60);
}
}
setUpWebsocketHandling() {
if (this.wss) {
websocketHandler.setWebsocketServer(this.wss);
}
websocketHandler.setupConnectionHandling();
statistics.setNewStatisticsEntryCallback(websocketHandler.handleNewStatistic.bind(websocketHandler));
blocks.setNewBlockCallback(websocketHandler.handleNewBlock.bind(websocketHandler));
memPool.setMempoolChangedCallback(websocketHandler.handleMempoolChange.bind(websocketHandler));
fiatConversion.setProgressChangedCallback(websocketHandler.handleNewConversionRates.bind(websocketHandler));
loadingIndicators.setProgressChangedCallback(websocketHandler.handleLoadingChanged.bind(websocketHandler));
}
setUpHttpApiRoutes() {
this.app
.get(config.MEMPOOL.API_URL_PREFIX + 'transaction-times', routes.getTransactionTimes)
.get(config.MEMPOOL.API_URL_PREFIX + 'cpfp/:txId', routes.getCpfpInfo)
.get(config.MEMPOOL.API_URL_PREFIX + 'fees/recommended', routes.getRecommendedFees)
.get(config.MEMPOOL.API_URL_PREFIX + 'fees/mempool-blocks', routes.getMempoolBlocks)
.get(config.MEMPOOL.API_URL_PREFIX + 'backend-info', routes.getBackendInfo)
.get(config.MEMPOOL.API_URL_PREFIX + 'init-data', routes.getInitData)
.get(config.MEMPOOL.API_URL_PREFIX + 'donations', async (req, res) => {
try {
const response = await axios.get('https://mempool.space/api/v1/donations', { responseType: 'stream', timeout: 10000 });
response.data.pipe(res);
} catch (e) {
res.status(500).end();
}
})
.get(config.MEMPOOL.API_URL_PREFIX + 'donations/images/:id', async (req, res) => {
try {
const response = await axios.get('https://mempool.space/api/v1/donations/images/' + req.params.id, {
responseType: 'stream', timeout: 10000
});
response.data.pipe(res);
} catch (e) {
res.status(500).end();
}
})
;
if (config.STATISTICS.ENABLED && config.DATABASE.ENABLED) {
this.app
.get(config.MEMPOOL.API_URL_PREFIX + 'statistics/2h', routes.get2HStatistics)
.get(config.MEMPOOL.API_URL_PREFIX + 'statistics/24h', routes.get24HStatistics.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'statistics/1w', routes.get1WHStatistics.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'statistics/1m', routes.get1MStatistics.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'statistics/3m', routes.get3MStatistics.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'statistics/6m', routes.get6MStatistics.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'statistics/1y', routes.get1YStatistics.bind(routes))
;
}
if (config.BISQ_BLOCKS.ENABLED) {
this.app
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/stats', routes.getBisqStats)
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/tx/:txId', routes.getBisqTransaction)
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/block/:hash', routes.getBisqBlock)
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/blocks/tip/height', routes.getBisqTip)
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/blocks/:index/:length', routes.getBisqBlocks)
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/address/:address', routes.getBisqAddress)
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/txs/:index/:length', routes.getBisqTransactions)
;
}
if (config.BISQ_MARKETS.ENABLED) {
this.app
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/currencies', routes.getBisqMarketCurrencies.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/depth', routes.getBisqMarketDepth.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/hloc', routes.getBisqMarketHloc.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/markets', routes.getBisqMarketMarkets.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/offers', routes.getBisqMarketOffers.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/ticker', routes.getBisqMarketTicker.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/trades', routes.getBisqMarketTrades.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/volumes', routes.getBisqMarketVolumes.bind(routes))
.get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/volumes/7d', routes.getBisqMarketVolumes7d.bind(routes))
;
}
if (config.MEMPOOL.BACKEND !== 'esplora') {
this.app
.get(config.MEMPOOL.API_URL_PREFIX + 'mempool', routes.getMempool)
.get(config.MEMPOOL.API_URL_PREFIX + 'mempool/txids', routes.getMempoolTxIds)
.get(config.MEMPOOL.API_URL_PREFIX + 'mempool/recent', routes.getRecentMempoolTransactions)
.get(config.MEMPOOL.API_URL_PREFIX + 'tx/:txId', routes.getTransaction)
.get(config.MEMPOOL.API_URL_PREFIX + 'tx/:txId/status', routes.getTransactionStatus)
.get(config.MEMPOOL.API_URL_PREFIX + 'tx/:txId/outspends', routes.getTransactionOutspends)
.get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash', routes.getBlock)
.get(config.MEMPOOL.API_URL_PREFIX + 'blocks', routes.getBlocks)
.get(config.MEMPOOL.API_URL_PREFIX + 'blocks/:height', routes.getBlocks)
.get(config.MEMPOOL.API_URL_PREFIX + 'blocks/tip/height', routes.getBlockTipHeight)
.get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash/txs', routes.getBlockTransactions)
.get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash/txs/:index', routes.getBlockTransactions)
.get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash/txids', routes.getTxIdsForBlock)
.get(config.MEMPOOL.API_URL_PREFIX + 'block-height/:height', routes.getBlockHeight)
.get(config.MEMPOOL.API_URL_PREFIX + 'address/:address', routes.getAddress)
.get(config.MEMPOOL.API_URL_PREFIX + 'address/:address/txs', routes.getAddressTransactions)
.get(config.MEMPOOL.API_URL_PREFIX + 'address/:address/txs/chain/:txId', routes.getAddressTransactions)
.get(config.MEMPOOL.API_URL_PREFIX + 'address-prefix/:prefix', routes.getAddressPrefix)
;
}
}
}
const server = new Server();