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menu_book Course Curriculum (REST API Design) expand_more

Resources & HTTP Methods

resource-oriented URLs GET collection GET single resource POST create resource PUT full replacement PATCH partial update DELETE resource HEAD request

Status Codes & Errors

200 OK 201 Created with Location 204 No Content 400 Bad Request 401 Unauthorized 403 Forbidden 404 Not Found 409 Conflict

Representations & Headers

Content-Type Accept negotiation Authorization Bearer token ETag If-None-Match Cache-Control Location header Link header pagination

Querying Collections

filter query parameters sorting offset pagination cursor pagination field selection search parameter date-range filtering multi-value filters

Reliability & Security

idempotency keys rate limiting CORS CSRF distinction for APIs input validation mass-assignment protection request correlation IDs timeouts and retries

Versioning & Documentation

URI versioning header versioning OpenAPI schema operationId request body schema response schema examples in OpenAPI deprecation headers

REST API Design / Representations & Headers

If-None-Match

Learn If-None-Match in REST API Design with a dedicated explanation, a concept-specific example, practical cautions, and a mastery check.

12 min read • Intermediate

rest-api-021.http

http

GET /v1/orders/42 HTTP/1.1
If-None-Match: "order-42-v7"

# unchanged resource may answer: HTTP/1.1 304 Not Modified

What to watch

Content source & attribution

Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

If-None-Match Mastery Check →