Next.js App Router Guide

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by Community

Master the Next.js App Router including file-based routing, layouts, loading states, error boundaries, server components, and data fetching patterns. Learn when to use server vs client components and how to optimize for performance.

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Next.js App Router Guide

A comprehensive guide to building modern Next.js applications with the App Router, server components, and streaming.

Usage

Ask about Next.js App Router patterns, server components, data fetching, or routing strategies.

Examples

  • "Set up nested layouts with shared navigation"
  • "How do I fetch data in a server component?"
  • "When should I use 'use client' directive?"

Guidelines

  • Default to server components unless you need interactivity
  • Use loading.tsx for streaming Suspense boundaries
  • Colocate data fetching with the components that need it
  • Use route groups for layout organization without URL impact
  • Prefer server actions for form mutations