Backend API

Design and implement RESTful API endpoints following best practices for URL structure, HTTP methods, status codes, and versioning. Use this skill when creating or modifying API routes, controllers, or endpoint handlers. When working on files like routes.py, api.py, controllers/, endpoints/, or any file defining HTTP endpoints. When designing URL patterns, choosing HTTP methods (GET, POST, PUT, PATCH, DELETE), implementing pagination, filtering, or sorting. When adding rate limiting headers or API versioning strategies.