Node.js HTTP Module

🌐 Node.js – HTTP Module

The HTTP module in Node.js allows you to create web servers and handle HTTP requests and responses.
It is a built-in module, so you don’t need to install anything.

✅ 1. Import the HTTP Module



 

✅ 2. Create a Simple HTTP Server


 

✔ Run:

node server.js

Open browser:

http://localhost:3000

✅ 3. Understanding Request (req) and Response (res)

req object contains:

  • URL (req.url)

  • HTTP method (req.method)

  • Request headers (req.headers)

  • Query params

  • Body data

res object is used to send:

  • Status codes

  • Headers

  • HTML / JSON / Text output

✅ 4. Sending HTML Response



 

✅ 5. Sending JSON Response



 

✅ 6. Handling Different Routes


 

✅ 7. Handling Methods (GET, POST, etc.)


 

✅ 8. Serving Static Files (HTML, CSS, JS)


 

✅ 9. HTTP Status Codes Example



 

✅ 10. Complete Example Server


 

🎯 Summary

FeatureDescription
Built-in moduleNo installation needed
Create serversHandle HTTP requests/responses
Supports routingGET, POST, etc.
Send text/HTML/JSONEasy response handling
Handle filesServe static content
Forms backendFoundation for Express.js

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