nextjs-app-router-patterns

To migrate a Next.js Pages router app to App Router, move routes into the app directory, add loading.tsx and error.tsx files, and implement route handlers for API endpoints. This standardizes architecture and accelerates delivery.

The best way to implement streaming in Next.js 14+ is using the App Router's Server Components architecture with Suspense boundaries. This allows you to stream large UI sections with minimal latency.

Parallel routes in the Next.js App Router work by rendering multiple pages simultaneously within a single layout. They are used to architect scalable layouts and complex modal patterns for advanced applications.

Use Server Components in Next.js when building pages that require improved performance and security through server-rendering. Use Client Components only when you need client-side interactivity or browser APIs.

Manage data fetching and caching in the Next.js App Router by leveraging Server Components for direct data fetching, configuring ISR/SSG options, and applying cache management strategies to optimize render performance.

Yes, you need Next.js 14+ to use these App Router patterns. The structured patterns for Server Components, streaming, parallel routes, and intercepting routes are designed specifically for the Next.js 14+ App Router architecture.