api-design-principles

REST and GraphQL API design involves enforcing a schema-first approach, proper versioning, pagination, and error handling. Following these patterns ensures intuitive, scalable APIs and prevents common issues like GraphQL N+1 query problems using DataLoader.

Standardize API design by establishing shared guidelines for resource modeling, input/output payloads, and documentation. Applying consistent REST and GraphQL patterns across products prevents fragmentation and reduces maintenance costs.

Prevent GraphQL N+1 query problems by implementing DataLoader patterns. DataLoader batches and caches data fetching requests efficiently, ensuring scalable data loading without overwhelming your backend with redundant database queries.

A schema-first approach for API development means defining the API contract and data models before writing backend code. This establishes clear input/output payloads and documentation guidelines early, ensuring consistent REST and GraphQL implementations.

Audit existing API specifications by reviewing them against established REST and GraphQL design principles. Check for proper versioning, pagination, error handling, and clear documentation to identify fragmentation and enforce quality standards across services.

Choose REST for resource modeling, versioning, and simple data fetching, or GraphQL for complex nested queries. Both require clear documentation and error handling, but GraphQL specifically benefits from DataLoader to manage data loading efficiently.