Functions

Last updated April 23, 2026

[

after

API Reference for the after function.

](after/index.md)[

cacheLife

Learn how to use the cacheLife function to set the cache expiration time for a cached function or component.

](cacheLife/index.md)[

cacheTag

Learn how to use the cacheTag function to manage cache invalidation in your Next.js application.

](cacheTag/index.md)[

unstable_catchError

API Reference for the unstable_catchError function.

](catchError/index.md)[

connection

API Reference for the connection function.

](connection/index.md)[

cookies

API Reference for the cookies function.

](cookies/index.md)[

draftMode

API Reference for the draftMode function.

](draft-mode/index.md)[

fetch

API reference for the extended fetch function.

](fetch/index.md)[

forbidden

API Reference for the forbidden function.

](forbidden/index.md)[

generateImageMetadata

Learn how to generate multiple images in a single Metadata API special file.

](generate-image-metadata/index.md)[

generateMetadata

Learn how to add Metadata to your Next.js application for improved search engine optimization (SEO) and web shareability.

](generate-metadata/index.md)[

generateSitemaps

Learn how to use the generateSiteMaps function to create multiple sitemaps for your application.

](generate-sitemaps/index.md)[

generateStaticParams

API reference for the generateStaticParams function.

](generate-static-params/index.md)[

generateViewport

API Reference for the generateViewport function.

](generate-viewport/index.md)[

headers

API reference for the headers function.

](headers/index.md)[

ImageResponse

API Reference for the ImageResponse constructor.

](image-response/index.md)[

NextRequest

API Reference for NextRequest.

](next-request/index.md)[

NextResponse

API Reference for NextResponse.

](next-response/index.md)[

notFound

API Reference for the notFound function.

](not-found/index.md)[

permanentRedirect

API Reference for the permanentRedirect function.

](permanentRedirect/index.md)[

redirect

API Reference for the redirect function.

](redirect/index.md)[

refresh

API Reference for the refresh function.

](refresh/index.md)[

revalidatePath

API Reference for the revalidatePath function.

](revalidatePath/index.md)[

revalidateTag

API Reference for the revalidateTag function.

](revalidateTag/index.md)[

unauthorized

API Reference for the unauthorized function.

](unauthorized/index.md)[

unstable_cache

API Reference for the unstable_cache function.

](unstable_cache/index.md)[

unstable_noStore

API Reference for the unstable_noStore function.

](unstable_noStore/index.md)[

unstable_rethrow

API Reference for the unstable_rethrow function.

](unstable_rethrow/index.md)[

updateTag

API Reference for the updateTag function.

](updateTag/index.md)[

useLinkStatus

API Reference for the useLinkStatus hook.

](use-link-status/index.md)[

useParams

API Reference for the useParams hook.

](use-params/index.md)[

usePathname

API Reference for the usePathname hook.

](use-pathname/index.md)[

useReportWebVitals

API Reference for the useReportWebVitals function.

](use-report-web-vitals/index.md)[

useRouter

API reference for the useRouter hook.

](use-router/index.md)[

useSearchParams

API Reference for the useSearchParams hook.

](use-search-params/index.md)[

useSelectedLayoutSegment

API Reference for the useSelectedLayoutSegment hook.

](use-selected-layout-segment/index.md)[

useSelectedLayoutSegments

API Reference for the useSelectedLayoutSegments hook.

](use-selected-layout-segments/index.md)[

userAgent

The userAgent helper extends the Web Request API with additional properties and methods to interact with the user agent object from the request.

](userAgent/index.md)

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