Course Content
NODEJS Tutorial
About Lesson

In the world of Node.js, building web applications is a common task, and one of the most popular frameworks for this purpose is Express. In this post, we will walk you through the process of installing Express and creating a simple Express server to kickstart your web development journey.

Why Express?

Express.js is a minimal and flexible Node.js web application framework that provides a robust set of features to develop web and mobile applications. It simplifies the process of building scalable and maintainable web applications, making it an excellent choice for developers.


Before we dive into creating our Express server, make sure you have Node.js installed on your machine. You can download the latest version from the official Node.js website.

Installing Express:

To install Express, open your terminal and run the following command:

npm install express

This will download and install Express and its dependencies.

Setting up Your Project:

Now that Express is installed, create a new directory for your project and navigate into it:

mkdir my-express-app
cd my-express-app

Creating Your Express Server:

Create a file named app.js (or any other preferred name) in your project directory. Open the file in your text editor and let’s start building your server.

// Import the Express module
const express = require('express');

// Create an Express application
const app = express();

// Define a route
app.get('/', (req, res) => {
res.send('Hello, Express!');

// Set the port for the server to listen on
const port = 3000;

// Start the server
app.listen(port, () => {
console.log(`Server is running on http://localhost:${port}`);

Running Your Server:

Save the changes to app.js and go back to your terminal. Run the following command to start your Express server:

node app.js

Visit http://localhost:3000 in your web browser, and you should see the message “Hello, Express!”.