A cikin App Router, tsarin folder a cikin app/ ya fara routes naka — babu router config da za a rubuta. Kowane folder shine URL segment, kuma fayilaye na musamman a cikinsa suna bayyana abin da segment yadda zai yi amfani.
app/
page.tsx → /
about/page.tsx → /about
blog/page.tsx → /blog
blog/[slug]/page.tsx → /blog/:slug (dynamic segment)
shop/(sale)/page.tsx → /shop (route group — parentheses don't add to URL)
Kowane folder na iya dauke da alamun sunan fayil masu karara, kowannan suna da aikin musamman:
page.tsx → the route's UI (REQUIRED to make a segment routable)
layout.tsx → shared wrapper that persists across child routes
loading.tsx → loading UI (auto-wraps the page in <Suspense>)
error.tsx → error boundary for the segment
not-found.tsx→ 404 UI
route.ts → an API endpoint (instead of a page)
// app/blog/[slug]/page.tsx → matches /blog/hello, /blog/anything
export default function Post({ params }: { params: { slug: string } }) {
return <h1>Post: {params.slug}</h1>; // params.slug = "hello"
}
Alkimiyar murabba'a tana abubuwa na dynamic parameter da ake watsa zuwa shafi ta hanyar params. Bambanci: [...slug] (catch-all), [[...slug]] (optional catch-all).
app/(marketing)/about/page.tsx → /about (the (marketing) folder is ignored in the URL)
Alkimiya ta kulle ta abubuwa ƙungiyoyi na paths don daidaita fayilaye ko aiwatar da daban-daban layouts ba tare da shafar URL ba.
File-based routing ta sa tsarin URL ya bayyana daga filin filin — babu tsakiya route configuration don adana kuma a daidai.
Sanin alamun sunan fayil masu karara (page, layout, loading, error, route) da alkimiyar bracket ([param], [...catchAll], (group)) shine kalmomin muhimmi na gina kowane App Router app.