Web Socket User Data Stream

Websocket
1

Hello,

I’m trying to write a client javascript code (for browser) for fetching data for Web Socket User Data Stream. Based on documentation is not clear

  1. how to pass Security Key for getting a listenKey.
  2. how to get events data for Balance and Position update, Order update.

Please, help me modify the code below for getting Balance, Position, Order update through wss.

function OpenSocketBinance() {

var xhr = new XMLHttpRequest();
var listenKey = null;

//apiPath : 'https://testnet.binancefuture.com'

xhr.open("POST", apiPath + '/fapi/v1/listenKey/timestamp=', false);
xhr.setRequestHeader("X-MBX-APIKEY", apiKey);
xhr.send(null);

if (xhr.status === 200) 
    listenKey = (JSON.parse(xhr.responseText))['listenKey'];

// 'wss://stream.binancefuture.com'
ws = new WebSocket(`${wssPath}/ws/${listenKey}`);

//ws.setHandler('executionReport', (params) => log(params));
//ws.setHandler('outboundAccountInfo', (params) => log(params));

}

2

You can’t using javascript. Generate your listenKey from your server end and get the key in your javascript code

3

From your code

for the method const privateRequest

you calc the signature but never used it. How does it work?

const signature = crypto
.createHmac(‘sha256’, apiSecret)
.update(buildQueryString({ …data, timestamp }).substr(1))
.digest(‘hex’);

4

requestClient.js is used by other js programs…
Please understand nodeJS better and find a nodeJS dev forum if you have question about the code