Backend··10 min read

REST API Design Basics — Endpoints, Status Codes & JSON

Design RESTful APIs: HTTP methods, status codes, resource naming, versioning, and error response patterns.

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RESTful API Design Principles

REST APIs expose resources via URLs and HTTP verbs. GET /users, POST /users, PATCH /users/1 — predictable patterns every frontend consumes.

Why REST API design Matters

Every frontend talks to REST APIs — designing predictable endpoints reduces integration bugs and documentation burden.

Use nouns for resources (/users not /getUsers), HTTP verbs for actions, and consistent JSON error shapes with status codes.

REST API design — Key Ideas You Must Know

  • GET read, POST create, PUT/PATCH update, DELETE remove
  • Status: 200 OK, 201 Created, 400 Bad Request, 404 Not Found
  • Plural nouns: /articles not /article
  • JSON request and response bodies
  • Consistent error shape

Practice REST API design with Free Lessons

Build a simple API with Next.js route handlers after JavaScript fetch lessons on Sturdee.

Tip: Free interactive lesson: /tutorials/javascript/javascript_fetch — practice REST API design with runnable code on Sturdee.

REST API Design Basics — FAQ

Frequently Asked Questions

REST vs GraphQL?+

REST is simpler to start. GraphQL when clients need flexible queries at scale.