API Fundamentals Course
API Fundamentals
/
Beginner

2xx Success Codes

Definition

HTTP status codes ranging from 200-299. They indicate that the client's request was successfully received, understood, and accepted by the server.

Explain Like I'm New

The server saying: 'Everything worked perfectly. Here is what you asked for.'

Real World Example

You ask for a user's profile (`GET /user`). The server finds it and returns it with a `200 OK`. You submit a new post (`POST /posts`). The server saves it and returns `201 Created`.

Common Use Cases

  • •Successful API responses

Interactive Example

Loading...
Console output will appear here...

Interview Questions

basic

  • What is the most common successful HTTP status code?

intermediate

  • What is the difference between `200 OK`, `201 Created`, and `204 No Content`?

Flash Cards

Question

Most common?

Click to reveal answer
Answer

`200 OK`.

Question

200 vs 201 vs 204?

Click to reveal answer
Answer

`200` means success (used for GET/PUT). `201` means success AND a new resource was physically created in the database (used for POST). `204` means success, but I have absolutely no data to send back to you (used for DELETE).