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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

Route groups

Learn Route groups in Next.js through a focused explanation, a topic-specific example, an engineering warning, and a mastery check.

12 min read • Beginner

nextjs-005.ts

typescript

// app/(marketing)/about/page.tsx
export default function About(){ return <h1>About</h1>; }
// (marketing) organizes files without changing /about.

What to watch

Content source & attribution

Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

Route groups Mastery Check →

Dynamic route segments