Websocket simple nodejs examples

Here is an example of a complete Node.js script that listens for a response from a WebSocket server:

const WebSocket = require('ws');

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

ws.on('open', function() {
  console.log('WebSocket connection opened');
});

ws.on('message', function(message) {
  console.log('Received message from server: ' + message);
});

ws.on('close', function() {
  console.log('WebSocket connection closed');
});