can you add an example about websockets?

[badpenguin]

I tried this (see below) but can't get the connection event to trigger.

'use strict'
const serverlessExpress = require('@codegenie/serverless-express');
const app = require('./app');
const server = serverlessExpress.createServer(app)
const {initWebSocket} = require('./ws');
initWebSocket(server);
exports.handler = (event, context) => {
	serverlessExpress.proxy(server, event, context);
};

const WebSocket = require('ws');

function initWebSocket(server) {

	const wss = new WebSocket.Server({server});

	wss.on('connection', (ws) => {

		console.error('*** connection ****');

		ws.on('message', (message) => {
			console.error(`Received message: ${message}`);
			ws.send(`Echo: ${message}`);
		});

		ws.on('close', () => {
			console.error('user disconnected');
		});

		ws.on('error', (error) => {
			console.error('WebSocket error:', error);
		});

		ws.send('Welcome to the WebSocket server!');
	});

}

module.exports = { initWebSocket };