nextjs

Use a proxy.ts authentication pattern to intercept requests and protect routes across your App Router. This approach validates user credentials server-side before granting access to protected dashboards and API routes, enforcing access control centrally without duplicating auth logic in each route.

Server Components run only on the server and are ideal for data fetching and sensitive operations; Client Components run in the browser for interactivity. Use Server Components by default for dashboards and data fetching, Client Components for forms and real-time UI updates to optimize performance and reduce bundle size.

Data fetching with caching in App Router leverages server-side route handlers and fetch strategies to cache responses and reduce redundant requests. Configure cache revalidation timing and use incremental static regeneration for dynamic routes to balance freshness and performance.

Yes, App Router supports dynamic routes with server-side data fetching using route parameters and Server Components. Fetch data server-side during render for protected dashboards and nested routes, using caching strategies to optimize load times across dynamic segments.

Scalable Next.js architecture combines App Router's nested layouts, Server/Client Component separation, proxy-based authentication, and optimized data fetching with caching. This pattern provides structured routing, centralized auth control, and performance-driven component placement for complex dashboards and multi-tenant apps.