req.body is undefined in express js node js parse json urlencoded body

//express versions below 4.16.0 npm install body-parser const bodyParser = require('body-parser'); const express = require('express'); const app = express(); // To parse JSON bodies app.use(bodyParser.json()); // To parse URL-encoded bodies app.use(bodyParser.urlencoded({ extended: true })); ------------------------------------------------------------- //Express 4.16.0 and above // add in app.js or server.js: const express = require('express'); const app = express(); // To parse JSON bodies (application/json) app.use(express.json()); // To parse URL-encoded bodies (application/x-www-form-urlencoded) app.use(express.urlencoded({ extended: true })); ---------------------------------------------------------------------- const express = require('express'); const app = express(); // Middleware to handle JSON and URL-encoded data app.use(express.json()); app.use(express.urlencoded({ extended: true })); app.post('/submit', (req, res) = { console.log(req.body); // req.body will contain parsed data res.send('Data received'); }); app.listen(3000, () = { console.log('Server is running on port 3000'); });