Next.js API Routes: Best Practices and Patterns
Build robust Next.js API routes with proper validation, error handling, authentication, rate limiting, and testing patterns for production apps.
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Build robust Next.js API routes with proper validation, error handling, authentication, rate limiting, and testing patterns for production apps.
Build multilingual Next.js apps with the App Router using locale routing, server-side translations, dynamic language switching, and SEO best practices.
Learn how to use Next.js Server Actions for form handling, data mutations, optimistic updates, and error handling with practical examples.
Build instant-loading Next.js pages with streaming, Suspense boundaries, loading.tsx files, and skeleton UIs for the best user experience.
A practical migration guide from Next.js Pages Router to App Router covering routing, data fetching, layouts, metadata, and common pitfalls.
Build modal patterns in Next.js using intercepting routes. Learn the (.) convention, combining with parallel routes, and handling hard refreshes.
Set up multi-language support in Next.js App Router using route-based locale segments, dictionaries, and middleware-based locale detection.
Learn how to render multiple pages simultaneously in the same layout using Next.js parallel routes and the @folder naming convention.
How error.tsx, global-error.tsx, and not-found.tsx work in the Next.js App Router — when each one fires, how segments isolate failures, and patterns for recovery and observability.
Master dynamic routes, catch-all segments, and optional catch-alls in Next.js. Learn how the file-based router maps URLs to components with concrete examples.
How parallel slots and intercepting routes power dashboards, modals, and tabbed UIs in the Next.js App Router — the file conventions, when to reach for each, and the patterns that hold up in production.
Compare the Next.js App Router and Pages Router: routing, data fetching, layouts, server components, and how to decide for new and existing projects.