@tank/nextjs

Next.js App Router uses a server-first architecture where Server Components fetch data directly during server-side rendering. This approach improves performance and SEO by executing data fetching logic on the server before sending HTML to the client.

Server Actions are the recommended way to handle form submissions in Next.js App Router. They allow you to write server-side mutation logic directly without creating separate API endpoints, streamlining data updates for e-commerce carts or similar interactive features.

Next.js caching operates through a multi-layer hierarchy that optimizes data fetching performance. You should configure caching strategies when building performant React applications to minimize redundant network requests and reduce server load.

Parallel routes in Next.js App Router allow you to render multiple route segments simultaneously. This advanced routing pattern enables side-by-side display of independent page sections like related products and reviews on a complex e-commerce product page.

Next.js App Router supports streaming to progressively send HTML to the browser as it renders. This mechanism reduces time to first byte and improves perceived performance for data-heavy React applications by displaying content incrementally.

Route Handlers are used when you need to expose HTTP endpoints for third-party webhooks or external API consumption. Server Actions are preferred for client-side mutations within your React application, keeping data flow tightly coupled to your components.