nextjs-15

You structure Next.js 15 App Router routes using file-based routing conventions, route groups, and dynamic routes. Server Components handle data fetching and streaming within this architecture to establish a clear application hierarchy.

Data fetching and server actions in Next.js 15 are handled directly within Server Components and action handlers. This pattern allows you to execute asynchronous operations and stream data to the client without creating separate API endpoints.

Migrating a Next.js 14 project to the App Router involves restructuring existing routes to file-based conventions and adopting server actions for data flow. This process provides minimal-change patterns to transition effectively.

Route handlers and middleware integrate directly with Next.js 15 server components to manage requests and metadata. They provide production-ready patterns for intercepting network requests alongside server-side rendering logic.

Route groups and dynamic routes are needed in the Next.js App Router when organizing complex application structures without affecting URL paths. They allow logical grouping and parameterized data fetching for specific pages.