Creating a basic HTTP server in Node.js - Try It Yourself

Creating a basic HTTP server

📖 Scenario: You want to create a simple web server that can respond to requests on your computer. This server will listen for visitors and send back a friendly message.

🎯 Goal: Build a basic HTTP server using Node.js that listens on port 3000 and responds with a plain text message.

📋 What You'll Learn

Create an HTTP server using Node.js built-in modules

Set the server to listen on port 3000

Respond with a plain text message 'Hello, world!' to every request

Use proper headers to indicate the content type

💡 Why This Matters

🌍 Real World

Basic HTTP servers are the foundation of web applications and APIs. Knowing how to create one helps you understand how web communication works.

💼 Career

Many backend developer roles require knowledge of creating and managing servers. This skill is essential for building web services and applications.

1

Import the HTTP module

Write a line of code to import the built-in Node.js http module and assign it to a variable called http.

Node.js

// Import the http module
// Your code here

Need a hint?

Use require('http') to import the HTTP module.

2

Create the server variable

Create a variable called server and assign it the result of http.createServer() with a function that takes req and res as parameters.

Node.js

const http = require('http');

// Create the server variable using http.createServer with (req, res) parameters
// Your code here

Need a hint?

Use http.createServer((req, res) => { }) to create the server.

3

Add response headers and message

Inside the server function, use res.writeHead(200, {'Content-Type': 'text/plain'}) to set the status and headers, then use res.end('Hello, world!') to send the response.

Node.js

const http = require('http');

const server = http.createServer((req, res) => {
    // Set status 200 and Content-Type header
    // Send 'Hello, world!' as response
    // Your code here
});

Need a hint?

Use res.writeHead to set headers and res.end to send the message.

4

Make the server listen on port 3000

Call server.listen(3000) to make the server listen on port 3000.

Node.js

const http = require('http');

const server = http.createServer((req, res) => {
    res.writeHead(200, {'Content-Type': 'text/plain'});
    res.end('Hello, world!');
});

// Make the server listen on port 3000
// Your code here

Need a hint?

Use server.listen(3000) to start the server on port 3000.