Config express for backend

index.js

const express = require('express');
const app = express();

// HTTP Methods CRUD => Create,Read, Update and Delete
app.get('/', (req, res) => {
  res.send('Hi, There Manot Luijiu');
}); // Read

// app.post(params); // Create
// app.put(params); // Update
// app.delete(params); // Delete

const PORT = process.env.PORT || 5000;
app.listen(PORT, () => {
  console.log(`Server is running on PORT ${PORT}`);
});