What problem does it solve?
This guide helps developers adopt Next.js 16 App Router patterns and best practices, enabling faster, safer implementation of pages, layouts, routes, and server actions.
Core Features & Use Cases
- Param resolution with Promise-based params support for dynamic routing and safe data access.
- PageProps/LayoutProps helpers for type-safe route components.
- Server Actions and useActionState for form mutations with progressive enhancement.
- Cache Components (PPR) patterns to mix static, cached, and runtime content.
- Proxy / Middleware patterns for routing, security, and localization.
- Real-world examples covering static/dynamic routes, layouts, and error handling.
Quick Start
Start by scaffolding a Next.js 16 App Router project and implement a sample page with params, PageProps, and a server action to demonstrate routing, data fetching, and server/client boundaries.