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binance

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Node.js connector for the Binance APIs and WebSockets, with TypeScript & browser support.

  • Heavy integration testing with real API calls to support implementation stability.
  • Support REST APIs for Binance Spot, Margin, Isolated Margin & USDM Futures.
    • Automatically manage latency related authentication issues.
    • Strongly typed on most requests and responses.
  • Support Websockets for Binance Spot, Margin, Isolated Margin & USDM Futures.
    • Event driven messaging.
    • Smart websocket persistence
      • Automatically handle silent websocket disconnections through timed heartbeats, including the scheduled 24hr disconnect.
      • Automatically handle listenKey persistence and expiration/refresh.
      • Emit reconnected event when dropped connection is restored.
    • Strongly typed on most websocket events.
    • Optional:
      • Automatic beautification of websocket events (from one-letter keys to descriptive words, and strings with floats to numbers).
      • Automatic beautification of REST responses (parsing numbers in strings to numbers).
  • Proxy support via axios integration.

Installation

npm install binance --save

Examples

Refer to the examples folder for implementation demos.

Issues & Discussion

  • Issues? Check the issues tab.
  • Discuss & collaborate with other node devs? Join our Node.js Algo Traders engineering community on telegram.
  • Questions about Binance APIs & WebSockets? Ask in the official Binance API group on telegram.

Related projects

Check out my related projects:

Documentation

Most methods accept JS objects. These can be populated using parameters specified by Binance's API documentation.

Structure

This project uses typescript. Resources are stored in 3 key structures:

  • src - the whole connector written in typescript
  • lib - the javascript version of the project (compiled from typescript). This should not be edited directly, as it will be overwritten with each release.
  • dist - the packed bundle of the project for use in browser environments.

Usage

Create API credentials at Binance

REST API Clients

There are several REST API modules as there are some differences in each API group.

  1. MainClient for most APIs, including: spot, margin, isolated margin, mining, BLVT, BSwap, Fiat & sub-account management.
  2. USDMClient for USD-M futures APIs.
  3. CoinMClient for COIN-M futures APIs.

Vanilla Options connectors are not yet available, though contributions are welcome!

REST Spot/Margin/etc

Start by importing the spot client. API credentials are optional, though an error is thrown when attempting any private API calls without credentials.

const { MainClient } = require('binance');

const API_KEY = 'xxx';
const API_SECRET = 'yyy';

const client = new MainClient({
  api_key: API_KEY,
  api_secret: API_SECRET,
});

client
  .getAccountTradeList({ symbol: 'BTCUSDT' })
  .then((result) => {
    console.log('getAccountTradeList result: ', result);
  })
  .catch((err) => {
    console.error('getAccountTradeList error: ', err);
  });

client
  .getExchangeInfo()
  .then((result) => {
    console.log('getExchangeInfo inverse result: ', result);
  })
  .catch((err) => {
    console.error('getExchangeInfo inverse error: ', err);
  });

See spot-client.ts for further information.

REST USD-M Futures

Start by importing the usd-m client. API credentials are optional, though an error is thrown when attempting any private API calls without credentials.

const { USDMClient } = require('binance');

const API_KEY = 'xxx';
const API_SECRET = 'yyy';

const client = new USDMClient({
  api_key: API_KEY,
  api_secret: API_SECRET,
});

client
  .getBalance()
  .then((result) => {
    console.log('getBalance result: ', result);
  })
  .catch((err) => {
    console.error('getBalance error: ', err);
  });

client
  .get24hrChangeStatististics()
  .then((result) => {
    console.log('get24hrChangeStatististics inverse futures result: ', result);
  })
  .catch((err) => {
    console.error('get24hrChangeStatististics inverse futures error: ', err);
  });

See usdm-client.ts for further information.

REST COIN-M Futures

Start by importing the coin-m client. API credentials are optional, though an error is thrown when attempting any private API calls without credentials.

const { CoinMClient } = require('binance');

const API_KEY = 'xxx';
const API_SECRET = 'yyy';

const client = new CoinMClient({
  api_key: API_KEY,
  api_secret: API_SECRET,
});

client
  .getSymbolOrderBookTicker()
  .then((result) => {
    console.log('getSymbolOrderBookTicker result: ', result);
  })
  .catch((err) => {
    console.error('getSymbolOrderBookTicker error: ', err);
  });

See coinm-client.ts for further information.

WebSockets

All websockets are accessible via the shared WebsocketClient. As before, API credentials are optional unless the user data stream is required.

const { WebsocketClient } = require('binance');

const API_KEY = 'xxx';
const API_SECRET = 'yyy';

// optionally override the logger
const logger = {
  ...DefaultLogger,
  silly: (...params) => {},
};

const wsClient = new WebsocketClient(
  {
    api_key: key,
    api_secret: secret,
    beautify: true,
    // Disable ping/pong ws heartbeat mechanism (not recommended)
    // disableHeartbeat: true
  },
  logger
);

// receive raw events
wsClient.on('message', (data) => {
  console.log('raw message received ', JSON.stringify(data, null, 2));
});

// notification when a connection is opened
wsClient.on('open', (data) => {
  console.log('connection opened open:', data.wsKey, data.ws.target.url);
});

// receive formatted events with beautified keys. Any "known" floats stored in strings as parsed as floats.
wsClient.on('formattedMessage', (data) => {
  console.log('formattedMessage: ', data);
});

// read response to command sent via WS stream (e.g LIST_SUBSCRIPTIONS)
wsClient.on('reply', (data) => {
  console.log('log reply: ', JSON.stringify(data, null, 2));
});

// receive notification when a ws connection is reconnecting automatically
wsClient.on('reconnecting', (data) => {
  console.log('ws automatically reconnecting.... ', data?.wsKey);
});

// receive notification that a reconnection completed successfully (e.g use REST to check for missing data)
wsClient.on('reconnected', (data) => {
  console.log('ws has reconnected ', data?.wsKey);
});

// Recommended: receive error events (e.g. first reconnection failed)
wsClient.on('error', (data) => {
  console.log('ws saw error ', data?.wsKey);
});

// Call methods to subcribe to as many websockets as you want.
// Each method spawns a new connection, unless a websocket already exists for that particular request topic.
// wsClient.subscribeSpotAggregateTrades(market);
// wsClient.subscribeSpotTrades(market);
// wsClient.subscribeSpotKline(market, interval);
// wsClient.subscribeSpotSymbolMini24hrTicker(market);
// wsClient.subscribeSpotAllMini24hrTickers();
// wsClient.subscribeSpotSymbol24hrTicker(market);
// wsClient.subscribeSpotAll24hrTickers();
// wsClient.subscribeSpotSymbolBookTicker(market);
// wsClient.subscribeSpotAllBookTickers();
// wsClient.subscribeSpotPartialBookDepth(market, 5);
// wsClient.subscribeSpotDiffBookDepth(market);

wsClient.subscribeSpotUserDataStream();
wsClient.subscribeMarginUserDataStream();
wsClient.subscribeIsolatedMarginUserDataStream('BTCUSDT');

wsClient.subscribeUsdFuturesUserDataStream();

// each method also restores the WebSocket object, which can be interacted with for more control
// const ws1 = wsClient.subscribeSpotSymbolBookTicker(market);
// const ws2 = wsClient.subscribeSpotAllBookTickers();
// const ws3 = wsClient.subscribeSpotUserDataStream(listenKey);

// optionally directly open a connection to a URL. Not recommended for production use.
// const ws4 = wsClient.connectToWsUrl(`wss://stream.binance.com:9443/ws/${listenKey}`, 'customDirectWsConnection1');

See websocket-client.ts for further information. Also see ws-userdata.ts for user data examples.

Customise Logging

Pass a custom logger which supports the log methods silly, debug, notice, info, warning and error, or override methods from the default logger as desired.

const { WebsocketClient, DefaultLogger } = require('binance');

// Enable all logging on the silly level
DefaultLogger.silly = (...params) => {
  console.log('sillyLog: ', params);
};

const ws = new WebsocketClient(
  api_key: 'xxx',
  api_secret: 'yyyy',
  DefaultLogger
);

Browser Usage

Build a bundle using webpack:

  • npm install
  • npm build
  • npm pack

The bundle can be found in dist/. Altough usage should be largely consistent, smaller differences will exist. Documentation is still TODO.

However, note that browser usage will lead to CORS errors due to Binance.

Contributions & Thanks

Donations

tiagosiebler

If you found this project interesting or useful, do consider sponsoring me on github or registering with my referral link. Thank you!

Or buy me a coffee using any of these:

  • BTC: 1C6GWZL1XW3jrjpPTS863XtZiXL1aTK7Jk
  • ETH (ERC20): 0xd773d8e6a50758e1ada699bb6c4f98bb4abf82da

Contributions & Pull Requests

Contributions are encouraged, I will review any incoming pull requests. See the issues tab for todo items.

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