How can I implement WebSockets in Node.js?

How can I implement WebSockets in Node.js?

To implement WebSockets in Node.js, you can use the 'ws' library. First, install it using npm: npm install ws. Then, create a WebSocket server.

Can you show me a simple example of a WebSocket server?

Sure! Here's a basic example:

const WebSocket = require('ws');
const server = new WebSocket.Server({ port: 8080 });

server.on('connection', (socket) => {
    socket.on('message', (message) => {
        console.log('received: %s', message);
    });
    socket.send('Hello! Message from server.');
});

How do I connect to this WebSocket server from a client?

You can connect to the WebSocket server using the following JavaScript code in your client:

const socket = new WebSocket('ws://localhost:8080');

socket.onopen = () => {
    socket.send('Hello Server!');
};

socket.onmessage = (event) => {
    console.log(event.data);
};