Summary
- REST and GraphQL API design principles for building scalable, developer-friendly APIs.
- Covers resource-oriented REST patterns including HTTP method semantics, URL design, pagination, filtering, and error handling with consistent status codes Includes GraphQL schema-first development with type definitions, resolver patterns, Relay-style pagination, and DataLoader implementation for N+1 prevention Provides versioning strategies (URL, header, query parameter) and HATEOAS patterns for hypermedia-driven APIs Addresses common pitfalls like over-fetching, breaking changes, inconsistent error formats, and tight coupling between API structure and database schema Best practices for both paradigms covering naming conventions, statelessness, rate limiting, documentation, and deprecation strategies