rest-api

Design and build RESTful APIs. Use when a user asks to create a REST API, design API endpoints, implement CRUD operations, add authentication to an API, handle pagination and filtering, set up API versioning, generate OpenAPI/Swagger docs, implement rate limiting, build middleware, handle file uploads, add CORS, implement HATEOAS, or structure an Express/Fastify/Koa/Flask/FastAPI backend. Covers HTTP methods, status codes, resource modeling, error handling, validation, and production deployment patterns.

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