Simple Web Server using Node JS
Node.js is a popular runtime environment for server-side applications. It allows developers to build scalable and high-performance web applications using JavaScript. In this tutorial, we will learn how to create a simple web server using Node.js.
Setting up Node.js
Before we start, make sure you have Node.js installed on your machine. You can download and install Node.js from the official website (https://nodejs.org/).
Creating a Simple Web Server
First, create a new directory for your project and navigate to it in your terminal. Then, create a new file called server.js and open it in your favorite text editor.
Inside server.js, we will use the built-in http module to create a simple web server. Here’s an example of how to create a basic web server:
const http = require('http');
const server = http.createServer((req, res) => {
res.statusCode = 200;
res.setHeader('Content-Type', 'text/plain');
res.end('Hello, World!n');
});
server.listen(3000, '127.0.0.1', () => {
console.log('Server running at http://127.0.0.1:3000/');
});
Save your server.js file and return to your terminal. Run the following command to start the server:
node server.js
Now, if you open your web browser and navigate to http://127.0.0.1:3000/, you should see “Hello, World!” displayed on the page. Congratulations, you have successfully created a simple web server using Node.js!
Understanding the Code
Let’s break down the code we wrote to create the web server:
- We require the
httpmodule, which is a built-in module in Node.js that allows us to create an HTTP server. - We use the
http.createServer()method to create a new HTTP server. - Inside the server callback function, we set the status code and the content type of the response, and then we send the response using the
res.end()method. - We use the
server.listen()method to specify the port and the host on which the server should listen for incoming requests.
Conclusion
Creating a simple web server using Node.js is straightforward and can be a great starting point for building more complex web applications. Node.js provides a powerful and flexible platform for building scalable and efficient web servers, and with the growing popularity of JavaScript, it has become an essential tool for web developers.
Thank you
Awaiting the project videos that use sql, fireball and cassandra