Basics of Express.js

Week-05/Day_02/README.md

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+# Express.js Basics
+
+## Introduction
+
+This project explains the basics of **Express.js**.
+Express.js is a web framework built on Node.js that simplifies backend development.
+
+Express.js is used to create web servers and APIs easily.
+It provides simple methods for routing and handling HTTP requests.
+
+---
+
+## Features of Express.js
+
+* Simple and easy routing
+* Middleware support
+* Fast server creation
+* API development
+
+---
+
+## Example: Simple Express Server
+
+```js
+const express = require('express');
+const app = express();
+
+app.get('/', (req, res) => {
+  res.send('Hello from Express!');
+});
+
+app.listen(3000, () => {
+  console.log('Server running on port 3000');
+});
+```
+
+---
+
+## Routing Example
+
+```js
+app.get('/about', (req, res) => {
+  res.send('This is About Page');
+});
+```
+
+---
+
+## Middleware Example
+
+```js
+app.use((req, res, next) => {
+  console.log('Request received');
+  next();
+});
+```
+
+---
+
+## How to Run
+
+1. Install Node.js
+2. Install Express:
+
+```
+npm init -y
+npm install express
+```
+
+3. Create a file `app.js`
+4. Run:
+
+```
+node app.js
+```
+
+5. Open browser:
+
+```
+http://localhost:3000
+```
+
+---
+
+## Technologies Used
+
+* Node.js
+* Express.js
+* JavaScript