CyberDude Live Internship: Day 102

Welcome to Day 102 of the CyberDude Live Internship! Today, we will be learning how to create a web server in Node.js using Express.js. Express.js is a popular framework for building web applications in Node.js.

What is Express.js?

Express.js is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications. It is designed to make building web applications in Node.js quick and easy.

Setting up the web server

To create a web server in Node.js using Express.js, you first need to install Express.js by running the following command:

npm install express

Once you have installed Express.js, you can create a new file for your web server and set it up as follows:


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

app.get('/', (req, res) => {
res.send('Hello, world!');
});

app.listen(3000, () => {
console.log('Server running on port 3000');
});


In this example, we have created a simple web server that listens on port 3000 and responds with ‘Hello, world!’ when you visit the root URL.

Conclusion

Creating a web server in Node.js using Express.js is a great way to build powerful and scalable web applications. With Express.js, you can quickly get up and running with a web server and start building your application.

I hope you found this article helpful and that you are now ready to start building your own web server using Express.js. Stay tuned for more exciting tutorials as we continue our CyberDude Live Internship!