nextjs-dynamic-routes-params

To access dynamic route params in Next.js App Router server components, await the params Promise passed to your page component to retrieve URL values like id for rendering specific content.

Catch-all routes in Next.js match one or more nested path segments using [...slug], while optional catch-all routes use [[...slug]] to match the root path and zero or more nested segments for flexible URL schemas.

To read pathname parameters in Next.js Client Components, use the useParams hook to access dynamic route values, since server component props are not directly available in client-side rendered components.

Use top-level dynamic routes in Next.js for flat URL structures like app/[id]/page.tsx, and choose nested dynamic routes when your URL requirements demand deeper hierarchies, ensuring minimal and explicit route nesting.

Yes, Next.js 15 enforces params as a Promise in server components, requiring you to await the params object before accessing dynamic route values to comply with asynchronous server component rendering standards.