nextjs-api-patterns

To build validated CRUD routes in Next.js, use Route Handlers integrated with Zod for input validation and middleware for authentication. This pattern ensures robust error handling and clear separation between read and mutation operations across your app routes.

The best way to secure Next.js Server Actions is by applying integrated authentication middleware and rate limiting directly within the server action execution. This protects mutation endpoints by validating user sessions and preventing abusive request frequencies.

Zod validation in Next.js Server Actions works by intercepting form submission data to enforce schema rules before processing mutations. This ensures data integrity, supports optimistic UI updates, and triggers cache revalidation only after successful validation.

Yes, you can use Next.js middleware for authorization and endpoint protection by intercepting requests to Route Handlers and Server Actions. This approach centralizes your auth checks to secure API endpoints before they execute business logic.

You should separate reads and mutations in Next.js API architecture when building scalable applications. Using Route Handlers for paginated read operations and Server Actions for validated mutations optimizes cache revalidation and enforces strict authorization boundaries.