Node.js & JavaScript SDK for Binance REST APIs & WebSockets

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Installation

npm install binance-api-nw

Examples

Refer to the examples folder for implementation demos.

Documentation

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

• Binance API Documentation

  • Spot
  • Derivatives
  • Margin
  • Wallet

• Find all products here

• REST Endpoint Function List

• TSDoc Documentation (autogenerated using typedoc)

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

• Livenet

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-api-nw');

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-api-nw');

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-api-nw');

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-api-nw');

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-api-nw');

// 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/Frontend Usage

Import

This is the "modern" way, allowing the package to be directly imported into frontend projects with full typescript support.

1. Install these dependencies

   npm install crypto-browserify stream-browserify

2. Add this to your tsconfig.json

   {
     "compilerOptions": {
       "paths": {
         "crypto": [
           "./node_modules/crypto-browserify"
         ],
         "stream": [
           "./node_modules/stream-browserify"
         ]
   }

3. Declare this in the global context of your application (ex: in polyfills for angular)

   (window as any).global = window;

Webpack

This is the "old" way of using this package on webpages. This will build a minified js bundle that can be pulled in using a script tag on a website.

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

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• Or buy me all the coffee:
  • ETH(ERC20): 0xA3Bda8BecaB4DCdA539Dc16F9C54a592553Be06C

Contributions & Pull Requests

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

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