Express is an excellent Node JS framework for web backend. It’s Fast, unopinionated, and minimalist. See the basic setup of the express server in the following example.
const express = require('express') const app = express() // Home Route app.get('/', (req, res) => { res.send('Hello from express...') }) // Port const PORT = 5000 || process.env.PORT app.listen(PORT, () => console.log(`Server running on port ${PORT}`))