Returning Response From The Server

Lecture 246:- Returning Response From The Server

To return a response from the Express server, you can use the response object passed as the second argument to the route handler function. The response object provides several methods to set the response headers and body.

Here's an example that returns a "Hello, World!" message for a GET request at the root path "/":

javascriptCopy code

const express = require('express'); const app = express(); app.get('/', (req, res) => {  res.send('Hello, World!'); }); app.listen(3000, () => {  console.log('Server started on port 3000'); });

In the above code, app.get() creates a route for the GET request at the root path. The callback function has two parameters req and res. The req object represents the request and res represents the response. The res.send() method sends the response body to the client. Finally, app.listen() starts the server on port 3000.