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name: Backend API description: Design and implement RESTful API endpoints following REST principles with resource-based URLs, appropriate HTTP methods, and consistent naming conventions. Use this skill when creating or modifying API route handlers, endpoint definitions, or REST controllers in files like routes.py, api.ts, controllers/, handlers/, or when implementing HTTP methods (GET, POST, PUT, PATCH, DELETE). Also applies when working on API versioning, request/response validation, status code handling, rate limiting, or any backend endpoint logic that serves HTTP requests to frontend clients or external systems.

Backend API

When to use this skill

• When creating or modifying route handlers in files like routes.py, api.ts, routes.js, app.py, or server.ts
• When working in controller or handler directories like controllers/, handlers/, routes/, or api/
• When implementing HTTP method handlers (GET, POST, PUT, PATCH, DELETE) for any resource
• When defining RESTful resource endpoints like /users, /products, /orders or nested resources like /users/:id/posts
• When adding API versioning strategies (URL-based like /v1/users or header-based)
• When implementing query parameter handling for filtering, sorting, pagination, or search functionality
• When setting up rate limiting, request validation, or response formatting middleware
• When working on files that return HTTP status codes (200, 201, 400, 404, 500, etc.) to clients
• When creating backend services that serve JSON responses to frontend applications or mobile apps
• When building public or internal APIs consumed by external systems or microservices

Backend API

This Skill provides Claude Code with specific guidance on how to adhere to coding standards as they relate to how it should handle backend API.

Instructions

For details, refer to the information provided in this file: backend API