Module 14: REST API Design

MODULE 14 · 3 LESSONS

Design consistent resources, status codes, pagination and evolvable error contracts.

Project checkpoint: Turn CourseFlow endpoints into a documented, versionable API.

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Module 14 learning loopA four-step visual showing resource URLs, method semantics, status codes, idempotency.Module 14 learning loop1Resource URLs2Method Semantics3Status Codes4Idempotency

Module 14 learning loop

  1. 1Resource URLs
  2. 2Method Semantics
  3. 3Status Codes
  4. 4Idempotency
Module 14 learning loop: a practical sequence used in this lesson.

What this module changes in your work

  • Map domain resources to HTTP semantics without tunneling every action through POST.
  • Describe the contract and evolve it without silently breaking consumers.
  • Use resource URLs, method semantics, status codes in one coherent implementation.
  • Complete this evidence-backed checkpoint: Turn CourseFlow endpoints into a documented, versionable API.

Lessons

PROJECT CHECKPOINT

Turn rest api design into evidence

Turn CourseFlow endpoints into a documented, versionable API.

  • Write acceptance criteria for resource URLs before implementation.
  • Keep the change small enough that a reviewer can connect it to the intended behavior.
  • Use the most direct check available for method semantics and save the result.
  • Record one decision you would keep and one you would revisit after feedback.

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