Binance Api Client

This TypeScript library provides comprehensive tools for interacting with Binance's Spot and Coin-M/USD-M Futures APIs. It supports both RESTful API requests and WebSocket connections for real-time data streaming.

Features

• REST API Client: Facilitates authenticated requests to Binance's Spot and Coin-M/USD-M Futures markets.
• WebSocket Market Data Client: Handles real-time market data streaming with automatic management of connections and subscriptions.
• WebSocket User Data Client: Handles real-time user data streaming with automatic management of connections and subscriptions and additionaly manages listen keys for user data streams, handling creation, renewal, and expiration.

Installation

  npm i @mykyta-isai/binance-api-connector

Setup

To use the library, import and initialize the desired API client with your Binance API credentials:

import { BinanceSpotApiClient, BinanceUsdmFuturesApiClient, BinanceCoinmFuturesApiClient } from '@mykyta-isai/binance-api-connector';

const spotClient = new BinanceSpotApiClient({
  apiKey: 'your-api-key',
  apiSecret: 'your-api-secret'
});

const usdmFuturesClient = new BinanceUsdmFuturesApiClient({
  apiKey: 'your-api-key',
  apiSecret: 'your-api-secret'
});

const coinmFuturesClient = new BinanceCoinmFuturesApiClient({
  apiKey: 'your-api-key',
  apiSecret: 'your-api-secret'
});

Making API Calls

The library supports three types of API requests: public, keyed, and private. Here's how you can use each:

• Public Requests: These do not require API keys and are used to access public market data.

async function getTickerPrice() {
  const response = await spotClient.publicRequest({
    method: 'GET',
    path: '/api/v3/ticker/price',
    params: { symbol: 'BTCUSDT' }
  });
  console.log('Current Bitcoin Price:', response);
}

getTickerPrice();

• Keyed Requests: These require an API key but not a secret, suitable for endpoints that need identity but not signing.

async function getAccountStatus() {
  const response = await spotClient.keyedRequest({
    method: 'GET',
    path: '/api/v3/account'
  });
  console.log('Account Status:', response);
}

getAccountStatus();

• Private Requests: These require both API key and secret for signed requests, necessary for trading and account management.

async function getUserData() {
  const response = await spotClient.privateRequest({
    method: 'GET',
    path: '/api/v3/account'
  });
  console.log('User Account Data:', response);
}

getUserData();

These examples demonstrate the flexibility of the library in handling different types of requests depending on the access level and information security required by the Binance API endpoints.

Managing WebSocket Connections

For real-time data streaming you can use BinanceUdmMarketDataStreamClient, BinanceCoinmMarketDataStreamClient or BinanceSpotMarketDataStreamClient:

import { BinanceSpotMarketDataStreamClient } from '@mykyta-isai/binance-api-connector';

const marketStream = new BinanceSpotMarketDataStreamClient({
  onMessageCallback: (message) => console.log('New Message:', message),
  errorCallback: (error) => console.error('WebSocket Error:', error),
  closeCallback: () => console.log('WebSocket Closed'),
  connectionCallback: () => console.log('WebSocket Connected'),
  streams: ['btcusdt@aggTrade', 'btcusdt@depth']
});

// Subscribe to an additional stream
marketStream.subscribeStreams(['ethusdt@aggTrade']);

// Unsubscribe to an additional stream
marketStream.unsubscribeStreams(['ethusdt@aggTrade']);

// List current subscriptions
marketStream.listSubscriptions();

For real-time data streaming, use the BinanceSpotUserDataStreamClient, BinanceUsdmUserDataStreamClient or BinanceCoinmUserDataStreamClient for user-specific streams. This client manages the listen key and handles reconnections and renewals automatically.

Here's how to subscribe to user data streams and handle messages:

import { BinanceSpotUserDataStreamClient, WebSocketConnectOptions } from '@mykyta-isai/binance-api-connector';

const options: WebSocketConnectOptions = {
  apiKey: 'your-api-key',
  onMessageCallback: (message) => console.log('New Message:', message),
  errorCallback: (error) => console.error('WebSocket Error:', error),
  closeCallback: () => console.log('WebSocket Closed'),
  connectionCallback: () => console.log('WebSocket Connected')
};

const userDataStream = new BinanceSpotUserDataStreamClient(options);

// Keep the stream alive by managing the listen key automatically
// The library takes care of renewing the listen key before it expires

// When you are done with the stream
function disconnectDataStream() {
  userDataStream.disconnect();
  console.log('Disconnected from user data stream.');
}

// Optionally, disconnect the stream based on some application logic or user action
setTimeout(disconnectDataStream, 3600000); // Disconnect after 1 hour for example