import express from 'express'; import { createServer } from 'http'; import { Server } from 'socket.io'; import { handler } from '../build/handler.js'; const app = express(); const server = createServer(app); const io = new Server(server); io.on('connection', (socket) => { socket.emit('eventFromServer', 'Hello, World 👋'); }); app.use(handler); server.listen(port, () => { console.log(`Listening on port ${port}`); });