Master programming syntax, solve interactive challenges & run live code in Syntaxis Explore Arena →
menu_book Course Curriculum (Next.js) expand_more
App Router Foundations
App Router project structure Server Components Client Components with use client Nested layouts Route groups Dynamic route segments Catch-all route segments Loading UI with loading.tsx
Data and Rendering
Server-side data fetching fetch cache control Revalidation with next revalidate generateStaticParams generateMetadata Streaming with Suspense Error boundaries with error.tsx notFound and not-found.tsx
Server Features
Route Handlers GET Route Handlers POST Server Actions Cookies API Headers API Redirects Middleware matcher Draft Mode
Production Patterns
next/image optimization next/font next/link prefetching Environment variables Parallel routes Intercepting routes Metadata Open Graph images Cache tags and revalidateTag
Next.js / App Router Foundations

App Router project structure

Learn App Router project structure in Next.js through a focused explanation, a topic-specific example, an engineering warning, and a mastery check.

12 min read • Beginner
nextjs-001.ts
typescript 
// app/page.tsx
export default function Home(){ return <main><h1>Syntaxis</h1></main>; }
What to watch
Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

App Router project structure Mastery Check →
NEXT →
Server Components