Backend – Basic Program to Make a ExpressJs Server

ExpressJs is a popular web application framework for Node.js that enables the creation of server-side applications. In this article, we will discuss a basic program to create a ExpressJs server.

Step 1: Install ExpressJs

Before creating a ExpressJs server, you need to install ExpressJs using npm. Open your terminal and run the following command:

npm install express

Step 2: Create a Server File

Create a new file called server.js in your project directory. This file will contain the code for creating the ExpressJs server. Copy and paste the following code into server.js:

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

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

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

Step 3: Start the Server

To start the ExpressJs server, run the following command in your terminal:

node server.js

You should see the message ‘Server is running on port 3000’ in your terminal. You can now access your server by navigating to http://localhost:3000 in your web browser.

Conclusion

Congratulations! You have successfully created a basic ExpressJs server. This is just a simple example, and you can further customize and expand your server based on your project requirements. Happy coding!