How do I implement WebSockets in Node.js?

How do 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.

What is the basic setup for a WebSocket server?

Here's a simple setup:

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

server.on('connection', (socket) => {
    console.log('New client connected');
    socket.on('message', (message) => {
        console.log(`Received: ${message}`);
    });
});

How do I send messages to the client?

You can send messages to the client using the send method on the socket object:

socket.send('Hello from server!');

Can I handle multiple clients?

Yes, the WebSocket server can handle multiple clients. Each connection is managed independently.