Binance Pay Merchant API for nodejs

I've found no lib for the Binance Pay Merchant API, so I'm creating one.

All of this is very early access, so use at your own risk.

The createOrder api is probably the only one I'll implement as it's the one I need now. I'm also going to support receiving and authentifying incoming webhook requests.

Feel free to submit pull requests to add more APIs! and issues if you have any.

This package was started for https://dojibar.com which is a Telegram bot to receive notification of your orders execution on Binance.

Quickstart

Install bmerch with :

$ npm install bmerch

The only dependency is Axios which is used for HTTP requests.

Instantiate a new API with

import { BinanceMerch } from 'bmerch'

const binanceMerch = new BinanceMerch(apikey, apisecret, { timeout: 5000 })

The third parameter is an AxiosRequestConfig which you can use to pass any additional parameters to Axios, like a timeout.

Create a new Order

const order = {
	env: {
		terminalType: 'APP',
	},
	merchantTradeNo: 'yourOwnTransactionReference',
	orderAmount: "5.00",
	currency: 'USDT',
	goods: {
		goodsType: '02', // virtual goods
		goodsCategory: 'Z000', // others
		referenceGoodsId: 'sub_1_month', // your reference for the product
		goodsName: "One month subscription",
	},
	buyer: {
		referenceBuyerId: 'yourReferenceForTheBuyer', // your reference
		buyerName: {
			firstName: 'chris',
			lastName: 'hartwig'
		}
	}
}

const result = await binanceMerch.createOrder(order)
console.log(result.data)

This would yield

{
    status: 'SUCCESS',
    code: '000000',
    data: {
      prepayId: '155661443313674176',
      terminalType: 'APP',
      expireTime: 1650325908850,
      qrcodeLink: 'https://public.bnbstatic.com/static/payment/20220418/8b0cd5d2-88eb-407d-912b-a0481219317f.jpg',
      qrContent: 'https://app.binance.com/qr/dplk6827518b7be9465da70d0f48ccd68712',
      checkoutUrl: 'https://pay.binance.com/en/checkout/efc2ebfc129a454cb2adc9b5cd571911',
      deeplink: 'bnc://app.binance.com/payment/secpay?tempToken=bkM5KsSwgSVWzmfxrWv9qM5V6Lg4EVAF&returnLink=https://pay.binance.com/en/checkout/efc2ebfc129a454cb2adc9b5cd571911',
      universalUrl: 'https://app.binance.com/payment/secpay?linkToken=efc2ebfc129a454cb0adc9bccd571911&_dp=Ym5jOi8vYXBwLmJpbmFuY2UuY29tL3BheW1lbnQvc2VjcGF5P3RlbXBUb2tlbj1ia001S3NTd2dTVld6bWZ4cld2OXFNNVYzTGc0RVZBRiZyZXR1cm5MaW5rPWh0dHBzOi8vcGF5LmJpbmFuY2UuY29tL2VuL2NoZWNrb3V0L2VmYzJlYmZjMTI5YTQ1NGNiMGFkYzliNWNkNTcxOTEx'
    }
}

You can then use any of the URLs to send your customer to Binance to pay for the order.

Verify a Webhook signature

You must check signatures of incoming webhook requests, to verify they come from Binance

const headers = // headers of the webhook request
const body = // raw body of the webhook request (not parse json object)
const isValid = await binanceMerch.isValidWebhookRequest(headers, body)

To use with Binance.us

You can specify the baseURL in the Axios options, if you don't want to use the standard api url.

const binanceMerch = new BinanceMerch(apikey, apisecret, {baseURL: 'https://bpay.binanceapi.com', timeout: 5000 })

TODO

• [ ] Test it all in Dojibar.com