Next.js API Architect

Design Next.js 16 API routes using export async function GET/POST handlers integrated with use cache directives, Zod validation for type-safe request handling, and TypeScript types. This pattern ensures cached responses, validated inputs, and consistent error handling across your endpoints.

Audit Next.js API routes by reviewing route handlers for proper auth integration via DAL-based authentication, rate limiting enforcement, CORS configuration, error handling consistency, and cache optimization. This identifies security gaps, performance bottlenecks, and compliance with production standards.

Yes. Next.js 16 API routes support rate limiting and CORS configuration within route handlers. These security controls work alongside validation, auth middleware, and error handling to protect endpoints and control cross-origin access in production deployments.

Implement consistent error handling in Next.js API routes using project utility functions that catch and format errors uniformly across GET/POST handlers. Combined with validation and auth checks, this ensures predictable error responses and debugging visibility.

Use Zod validation in Next.js 16 API route handlers to parse and type-check incoming requests before processing. Zod provides runtime safety, clear error messages, and type inference that integrates naturally with TypeScript and request/response handling.

Yes. Next.js 16 API routes support streaming responses and request deduplication, enabling efficient data transfer for large payloads and preventing duplicate processing. These optimizations improve performance and reduce server load in high-traffic endpoints.