api-endpoint

Secure REST API endpoints in Next.js use Firebase authentication checks via verifyAuth before processing requests. This Skill generates GET, POST, PATCH, and DELETE routes with built-in auth validation, returning appropriate HTTP status codes and Korean error messages to enforce access control.

Input validation in Next.js API routes uses security utilities to sanitize and verify incoming data before processing. This Skill integrates validation logic into endpoint templates, catching malformed requests early and returning descriptive errors.

Pagination and rate limiting in Next.js API endpoints are implemented through cursor-based pagination logic and rate-limiter configs applied at route level. This Skill scaffolds both patterns into endpoint templates with consistent response formats.

File uploads in Next.js API routes require validation against CONTENT_LIMITS and authentication checks before storage. This Skill provides endpoint templates that enforce file-size restrictions and auth verification within the upload flow.

Protected API routes in Next.js App Router follow a consistent template pattern: auth verification, input validation, business logic, and standardized response formatting. This Skill generates pre-configured route handlers for src/app/api that enforce this pipeline automatically.

Yes. This Skill is built specifically for Firebase-backed Next.js endpoints, using Firebase auth verification as the foundation for all protected routes and integrating Firebase credentials into the request pipeline.