juniorAPI Design
What are HTTP Status Codes?
Updated Apr 28, 2026
Short answer
Standardized numerical responses from a server to a client indicating the outcome of a request (e.g., 200 OK, 404 Not Found).
Deep explanation
API Design at the junior level focuses on standards and communication. Standardized numerical responses from a server to a client indicating the outcome of a request (e.g., 200 OK, 404 Not Found). Following REST constraints ensures interoperability and ease of use.
Real-world example
A weather app fetching current temperature from a remote server.
Common mistakes
- Using GET for operations that modify data.
Follow-up questions
- What is a 201 status code?