`authenticateRequest()`

Authenticates a token passed from the frontend. Networkless if the secretKey or jwtKey are provided. Otherwise, performs a network call to retrieve the JWKS from Clerk's Backend API.


function authenticateRequest: (request: Request, options: AuthenticateRequestOptions) => Promise<RequestState>;

`authenticateRequest()` parameters

Name	Type	Description
`request`	`Request`	`Request` object
`options?`	`AuthenticateRequestOptions`	Optional options to configure the authentication.

`AuthenticateRequestOptions`

Name	Type	Description
`secretKey?`	`string`	The Clerk secret key from the API Keys(opens in a new tab) page in the Clerk Dashboard.
`publishableKey?`	`string`	The Clerk publishable key from the API Keys(opens in a new tab) page in the Clerk Dashboard.
`domain?`	`string`	The domain for the application. For development, you can pass the localhost your application is running on. For example: `localhost:3001`
`isSatellite?`	`boolean`	Set to `true` if the instance is a satellite domain in a multi-domain setup.
`proxyUrl?`	`string`	The proxy URL from a multi-domain setup.
`signInUrl?`	`string`	The sign-in URL from a multi-domain setup. It's recommended to use the environment variable instead.
`signUpUrl?`	`string`	It's recommended to use sign-up URL from a multi-domain setup. Use the environment variable instead.
`signInFallbackRedirectUrl?`	`string`	The fallback URL to redirect to after the user signs in, if there's no `redirect_url` in the path already. Defaults to `/`. It's recommended to use the environment variable instead.
`signUpFallbackRedirectUrl?`	`string`	The fallback URL to redirect to after the user signs up, if there's no `redirect_url` in the path already. Defaults to `/`. It's recommended to use the environment variable instead.
`signInForceRedirectUrl?`	`string`	If provided, this URL will always be redirected to after the user signs in. It's recommended to use the environment variable instead.
`signUpForceRedirectUrl?`	`string`	If provided, this URL will always be redirected to after the user signs up. It's recommended to use the environment variable instead.
`jwtKey?`	`string`	The PEM public key from the API Keys(opens in a new tab) page -> Advanced -> JWT public key section of the Clerk Dashboard. It's recommended to use the environment variable instead.
`audience?`	`string \| string[]`	A string or list of audiences(opens in a new tab).
`authorizedParties`	`string[]`
`clockSkewInMs?`	`number`	Specifies the allowed time difference (in milliseconds) between the Clerk server (which generates the token) and the clock of the user's application server when validating a token. Defaults to 5000 ms (5 seconds).
`jwksCacheTtlInMs?`	`number`	Specifies the allowed time (in milliseconds) the JWKs are considered valid in cache . Defaults to 3600_000 ms (1 hour).
`skipJwksCache?`	`boolean`	A flag to skip ignore cache and always fetch JWKs before each jwt verification.

`authenticateRequest()` example

Takes the token passed by the frontend as a Bearer token in the Authorization header, and performs a networkless authenication. This will verify if the user is signed into the application or not.


import { clerkClient } from '@clerk/nextjs/server'
import { NextRequest, NextResponse } from 'next/server'
 
export async function GET(req: NextRequest) {
  const { isSignedIn } = await clerkClient.authenticateRequest(req)
 
  if ( !isSignedIn ) {
    return NextResponse.json({ status: 401 })
  }
 
  // Perform protected actions
 
  return NextResponse.json({ message: "This is a reply" })
}

authenticateRequest() parameters

AuthenticateRequestOptions

authenticateRequest() example

`authenticateRequest()` parameters

`AuthenticateRequestOptions`

`authenticateRequest()` example