nextjs

Next.js App Router patterns structure complex UIs using nested layouts, route groups, parallel routes, and intercepting routes to efficiently organize routing and rendering. This enables scalable composition for marketing sites, dashboards, and APIs.

The best way to handle data fetching in Next.js involves using server components, server actions, and route handlers. This enforces server and client boundaries, optimizing data flows and caching revalidation for dynamic per-user scenarios.

Choosing between static, dynamic, and edge rendering in Next.js depends on your data needs: static for build-time content, ISR for periodic updates, and dynamic or edge for per-user requests and access control via middleware.

Yes, you can use middleware in Next.js for access control and edge deployment. Middleware intercepts requests at the edge, enforcing authentication and routing rules before rendering static, dynamic, or streaming content with Suspense.

Enforcing server and client boundaries in Next.js rendering matters because it dictates data fetching patterns, caching behavior, and revalidation strategies. Proper boundaries ensure scalable deployment and optimal streaming with Suspense.

You need dynamic metadata generation for scalable Next.js apps when handling varying routes and SEO requirements. It allows dynamic per-user content and static rendering scenarios to produce correct metadata without manual configuration.