npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@xtek/binance-connector

v1.8.1

Published

This is a lightweight library that works as a connector to the Binance public API.

Downloads

2

Readme

Binance connector in Nodejs

npm version Node version Standard-Js License: MIT

This is a lightweight library that works as a connector to Binance public API. It’s designed to be simple, clean, and easy to use with minimal dependencies.

  • Supported APIs:
    • /api/*
    • /sapi/*
    • Spot Websocket Market Stream
    • Spot User Data Stream
  • Inclusion of test cases and examples
  • Customizable base URL, request timeout and HTTP proxy
  • Response metadata can be displayed
  • Customizable Logger

Installation

npm install @binance/connector

Documentation

https://binance.github.io/binance-connector-node/

RESTful APIs

const { Spot } = require('@binance/connector')

const apiKey = ''
const apiSecret = ''
const client = new Spot(apiKey, apiSecret)

// Get account information
client.account().then(response => client.logger.log(response.data))

// Place a new order
client.newOrder('BNBUSDT', 'BUY', 'LIMIT', {
  price: '350',
  quantity: 1,
  timeInForce: 'GTC'
}).then(response => client.logger.log(response.data))
  .catch(error => client.logger.error(error))

Please find examples folder to check for more endpoints.

Testnet

While /sapi/* endpoints don't have testnet environment yet, /api/* endpoints can be tested in Spot Testnet. You can use it by changing the base URL:

// provide the testnet base url
const client = new Spot(apiKey, apiSecret, { baseURL: 'https://testnet.binance.vision'})

Base URL

If base_url is not provided, it defaults to api.binance.com.

It's recommended to pass in the base_url parameter, even in production as Binance provides alternative URLs in case of performance issues:

  • https://api1.binance.com
  • https://api2.binance.com
  • https://api3.binance.com

Optional Parameters

Optional parameters are encapsulated to a single object as the last function parameter.

const { Spot } = require('@binance/connector')

const apiKey = ''
const apiSecret = ''
const client = new Spot(apiKey, apiSecret)

client.account({ recvWindow: 2000 }).then(response => client.logger.log(response.data))

Response Metadata

The Binance API server provides weight usages in the headers of each response. This information can be fetched from headers property. x-mbx-used-weight and x-mbx-used-weight-1m show the total weight consumed within 1 minute.

// client initialization is skipped

client.exchangeInfo().then(response => client.logger.log(response.headers['x-mbx-used-weight-1m']))

Custom Logger Integration

const Spot = require('@binance/connector')
const fs = require('fs')
const { Console } = require('console')

// make sure the logs/ folder is created beforehand
const output = fs.createWriteStream('./logs/stdout.log')
const errorOutput = fs.createWriteStream('./logs/stderr.log')

const logger = new Console({ stdout: output, stderr: errorOutput })
const client = new Spot('', '', {logger: logger})

client.exchangeInfo().then(response => client.logger.log(response.data))
// check the output file

The default logger defined in the package is Node.js Console class. Its output is sent to process.stdout and process.stderr, same as the global console.

Error

There are 2 types of error that may be returned from the API server and the user has to handle it properly:

  • Client error

    • This is thrown when server returns 4XX, it's an issue from client side.
    • The following properties may be helpful to resolve the issue:
      • Response header - Please refer to Response Metadata section for more details.
      • HTTP status code
      • Error code - Server's error code, e.g. -1102
      • Error message - Server's error message, e.g. Unknown order sent.
      • Request config - Configuration send to the server, which can include URL, request method and headers.
    // client initialization is skipped
    client.exchangeInfo({ symbol: 'invalidSymbol' })
      .then(response => client.logger.log(response.data))
      .catch(err => {
        client.logger.error(err.response.headers) // full response header
        client.logger.error(err.response.status) // HTTP status code 400
        client.logger.error(err.response.data) // includes both error code and message
        client.logger.error(err.response.config) // includes request's config 
      })
    
  • Server error

    • This is thrown when server returns 5XX, it's an issue from server side.

Websocket

const { Spot } = require('@binance/connector')

const client = new Spot('', '', {
  wsURL: 'wss://testnet.binance.vision' // If optional base URL is not provided, wsURL defaults to wss://stream.binance.com:9443
})

const callbacks = {
  open: () => client.logger.log('open'),
  close: () => client.logger.log('closed'),
  message: data => client.logger.log(data)
}
const aggTrade = client.aggTradeWS('bnbusdt', callbacks)

// unsubscribe the stream above
setTimeout(() => client.unsubscribe(aggTrade), 3000)

// support combined stream
const combinedStreams = client.combinedStreams(['btcusdt@miniTicker', 'ethusdt@tikcer'], callbacks)

More websocket examples are available in the examples folder

Unsubscribe a Stream

Unsubscription is achieved by closing the connection. If this method is called without any connection established, the console will output a message No connection to close.

// client initialization is skipped
const wsRef = client.aggTradeWS('bnbusdt', callbacks)

// The connection (bnbusdt@aggTrade) is closed after 3 secs.
setTimeout(() => client.unsubscribe(wsRef), 3000)

Auto Reconnect

If there is a close event not initiated by the user, the reconnection mechanism will be triggered in 5 secs.

Custom Logger Integration

const { Console } = require('console')
const fs = require('fs')
const Spot = require('@binance/connector')

const output = fs.createWriteStream('./logs/stdout.log')
const errorOutput = fs.createWriteStream('./logs/stderr.log')

// make sure the logs/ folder is created beforehand
const logger = new Console({ stdout: output, stderr: errorOutput })
const client = new Spot('', '', {logger})

const callbacks = {
  open: () => client.logger.log('open'),
  close: () => client.logger.log('closed'),
  message: data => client.logger.log(data)
}

const wsRef = client.aggTradeWS('bnbusdt', callbacks)
setTimeout(() => client.unsubscribe(wsRef), 5000)
// check the output file

The default logger defined in the package is Node.js Console class. Its output is sent to process.stdout and process.stderr, same as the global console.

Note that when the connection is initialized, the console outputs a list of callbacks in the form of listen to event: <event_name>.

Test

npm install

npm run test

Limitation

Futures and Vanilla Options APIs are not supported:

  • /fapi/*
  • /dapi/*
  • /vapi/*
  • Associated Websocket Market and User Data Streams