nextjs-app-router-patterns

To structure Server and Client Components in the Next.js App Router, you must identify rendering boundaries by adding the 'use client' directive only when interactivity or browser APIs are required, optimizing performance.

The best way to fetch data in the Next.js 14 App Router is directly inside Server Components, which allows you to securely access back-end infrastructure and stream responses to improve perceived loading performance.

Parallel and intercepting routes in Next.js work by rendering multiple pages simultaneously within a layout and intercepting route navigation to display content modally, enabling complex user interfaces without full page transitions.

You should use Server Actions for mutations in a React application when you need to securely write data directly to your database from the Next.js App Router without creating separate API endpoints.

To handle loading and error states with App Router conventions, you implement special 'loading.tsx' and 'error.tsx' files to instantly render streaming fallbacks and gracefully catch uncaught exceptions for your route segments.