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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 / Server Features

Headers API

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

12 min read • Intermediate

nextjs-021.ts

typescript

import { headers } from 'next/headers';
const h=await headers();
console.log(h.get('user-agent'));

What to watch

Content source & attribution

Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

Headers API Mastery Check →