Networking & HTTP·Networking from DNS to production

HTTP basics

Understand methods, paths, status codes and the request-response shape.

Beginner 13 min read Lesson 4 of 300 Challenge included

What you will be able to do

Use GET for safe reads.
Use POST for creation and non-idempotent actions.
Return the correct status code.
Keep URLs stable and meaningful.

In plain English

HTTP is a text protocol of request and response messages. Methods express intent: GET reads, POST creates, PUT replaces, PATCH updates and DELETE removes. Status codes summarise the outcome in classes: 2xx success, 3xx redirect, 4xx client error, 5xx server error.

request.httpHTTP

GET /api/courses/css HTTP/1.1
Host: www.edubyte.tech
Accept: application/json

HTTP/1.1 200 OK
Content-Type: application/json
Cache-Control: public, max-age=60

Your turn

Choose a status code

Easy

Which status code should a successful POST that creates a resource return?

HTTP · starter

status =

Check your understanding before moving on.

Knowledge checkQuestion 1

Which class of status code means the client made a mistake?

Select an answer to continue

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Next: Headers and caching

Lesson 4 of 300 · 0% of course