Ethereum: How to use incoming Binance WebSocket data?

Use incoming Binance website data with Ethereum

As a developer, you probably want to integrate real-time market data into your applications. A popular solution is the use of the Binance Websacht-API to get incoming data in real time. In this article we will examine how incoming Binance website data is used to pursue Ethereum prices.

Requirements

Before you immerse yourself, make sure that:

• A Binance account and a valid API key.

• The “Binance-Jspackage" installed as dependency installed: "NPM Install Binance-Js"

• Basic knowledge of JavaScript and webocket -apis.

First steps with the Binance Websacht API

To use the Binance weboacht -API, you have to:

• Create an API key on the Binance website.

• Get a website URL by following the instructions in the Binance documentation.

For Ethereum prices, we use the "ETH-APIS" package, which offers a simple and convenient way to interact with the Ethereum Blockchain website.

Installation

In the beginning, install the required packages:

Bash

NPM install Binance-Js ETH-APIS

Set up the website connection

Here is an example of how a connection to the website endpoint of Binance is established:

`JavaScript

Const {web3} = request (‘Web3’);

Const Binance = demands (‘Binance-js’);

Const apikey = ‘your_api_key’;

Const apisecret = ‘your_api_secret’;

Const webocketurl = ‘wss: //apis.binance.com/1/websocket’;

Const web3 = new web3 (new web3.providers.httpprovider (website));

Const ethapi = new bony ({{{

Apikey,

Apisecret,

});

// Example: Call prices for the Ethereum symbol

Ethapi.get (‘ethusdprice’, function (err, answer) {

if (err) console.error (err); // replace with a protocol message of your choice

different {

Const Price = Response.Price;

console.log (Current ETH price: $ {price});

}

});

`

In this example, we create an instance of the “ETH-APIs” package “ETH-APIS” and pass on in our API key. Then we establish a connection to the Binance website endpoint with the “Web3provider".

Analysis of incoming messages

The incoming data are sent as messages in the JSON format via webox. To analyze this messages, you need to use a library like "JSON Stringify Safe". Here is an example:

JavaScript

Const {parsemessage} = request (‘Json-Stringify-Safe’);

// Example: Analysis of the first message from Binance (in this case a price update)

Ethapi.get (‘ethusdprice’, function (err, answer) {

if (err) console.error (err); // replace with a protocol message of your choice

different {

Const data = parsemessage (answer);

const {symbol, time temple, price} = data;

console.log (get ETH -Prize -Update at $ {TIMESTAMP}: $$ {price});

}

});

`

In this example, we use the “Parsesesemessage” function to safely analyze the incoming message from Binance.

Integrate into your application

To integrate our website connection into your application, you must:

• Create a socket event listener for new messages from Binance.

• Treat incoming messages and update your data accordingly.

Here is an example of how we can create a simple website server with the “WS” library:

`JavaScript

Const webocket = demands (‘ws’);

// Create a socket connection to the website endpoint of Binance

Const WSS = new webocket.server ({port: 8080});

Wss.on (‘connection’, (ws) => {

console.log (‘client connected …’);

// execute incoming messages from Binance

Ws.on (‘message’, (message) => {

Const data = parsemessage (message);

If (Data && Data.s symbol === ‘eth’) {

console.log (get ETH -Prize -Update: $ {data.price});

} differently {

console.log (ignore unknown symbol: $ {data. symbol});

}

});

// Close the connection when you are separated

Ws.on (‘close’, () => {

console.log (‘client separated …

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