import express from 'express'; const app = express(); const PORT = parseInt(process.env.PORT ?? "3000"); const HOST = process.env.HOST ?? '0.0.0.0'; app.get('/', (req, res) => { console.log(`Request received: ${req.method} ${req.url}`); res.send('Hello, World!'); }); app.listen(PORT, HOST, () => { console.log(`Server is running at http://${HOST}:${PORT}`); });