Course Content
NODEJS Tutorial
About Lesson

In the world of web development, understanding how to handle HTTP methods is crucial. Node.js, with the help of the popular Express framework, provides a robust foundation for building powerful and scalable web applications. In this post, we’ll delve into the nuances of handling HTTP methods using Express and explore best practices to make your Node.js applications more efficient.

HTTP Methods Overview

HTTP methods, such as GET, POST, PUT, and DELETE, play a pivotal role in web development. They define the actions a client can perform on a server. In Node.js, Express simplifies the process of handling these methods, allowing developers to create dynamic and interactive web applications.

Installing Express

Before diving into HTTP methods, let’s ensure Express is properly installed in your Node.js project. Use the following command to install Express:

npm install express

Setting Up Your Express App

Once Express is installed, create an Express application by setting up a basic server:

const express = require('express');
const app = express();
const port = 3000;

app.listen(port, () => {
console.log(`Server is running on port ${port}`);
});

Handling HTTP Methods

Now, let’s explore how to handle different HTTP methods in Express:

1. Handling GET Requests

To handle a GET request, use the app.get() method:

app.get('/', (req, res) => {
res.send('Hello, this is a GET request!');
});

2. Handling POST Requests

For handling POST requests, use app.post():

app.post('/', (req, res) => {
res.send('This is a POST request!');
});

3. Handling PUT Requests

Handling PUT requests is achieved with app.put():

app.put('/', (req, res) => {
res.send('A resource has been updated with a PUT request!');
});

4. Handling DELETE Requests

Use app.delete() to handle DELETE requests:

app.delete('/', (req, res) => {
res.send('The specified resource has been deleted!');
});