Phase 23 · Interview Preparation
TechnicalREST APIs
Part of the Frontend Developer Roadmap.
Summary
Being fluent in discussing API design and consumption trade-offs — status codes, idempotency, versioning — beyond just knowing how to call `fetch`.
How to Learn This
- 1Be ready to design a simple REST API for a given resource on a whiteboard.
- 2Know the difference between PUT and PATCH, and why idempotency matters.
- 3Practice explaining how you'd handle API errors gracefully in a UI.
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