laravel passport: how to validate bearer authorization code - without sign in

Question

I did request:

{
    "grant_type": "client_credentials",
    "client_id": 8,
    "client_secret": "XXNKXXqJjfzG8XXSvXX1Q4pxxnkXmp8tT8TXXKXX",
    "redirect_uri": "",
    "scope": "*"
}

Then received response below:

{
    "token_type": "Bearer",
    "expires_in": 31536000,
    "access_token": "eyJ0eXAiOiJKV1QiLCJhbGcXXXJSUzI1NiIsImp0aSI6ImEzYjJhZmU5OTYzMTE5MDAyZDAwZmEzNzU0ZGY3ZTRkMTgwYzhlYWRmNGQyOGU5MTI4YjAyYjJmYWQxZjY1NjUzMzAyZjNlZTI4MTgxMDFhIn0.eyJhdWQiOiI4IiwianRpIjoiYTNiMmFmZTk5NjMxMTkwMDJkMXXXYTM3XXXkZjdlNGQxODBjOGVhZGY0ZDI4ZTkxMjhiMDJiMmZhZDFmNjU2NTMzMDJmM2VlMjgxODEwMWEiLCJpYXQiOjE1NDAwMTQxNTUsIm5iZiI6MTU0MDAxNDE1NSwiZXhwIjoxNTcxNTUwMTU1LCJzdWIiOiIiLCJzY29wZXMiOltdfQ.sNSYywfBf27yAojqZclpjliysbQARlYFktzanTMecXXXIai5DgJY0sKhGpHktP5cqirYdemoFKy2nOxzZ8g29gCQQ63zmxe3vpbDz1GAdrjCDWoUlwSXXXHx4VIsdSIzVdi9XyvPKaLKMdoL6nFeWgpgXKGIvHKdiHjKgQbY_08Qa6JMN5Up27qmIOQoXJNAf1nuXvBMabUU_Js7VNspwPfdC8nMZ5zhK1A_c32_lDRtHqkhDfqqBXdUB-inx-zixhn2ODC4b4tkdj7XXXXlVKFxHxKM3aVOMFlmKhypSDwIUB0dPsN8iHcLzkl1yjzRQcOvQEj5BXWLkLCPdkiX2YJuFiWGUm_nxiYoIRV3ptJDeBI5OJI870JTOwBfJePrHTbXmhbjNSQSflLtiOV34wbPQZWH3KMKcsGVYvXXX3rcO5cbZWeeJLGPPYYO-_AWDmdAm-Qsb6Tw1sPxEZRw0dw3zBHnLVrEK9GXXXN2U5wE9Ka3id8ecOJSXSD39X1PyZUB9dJTidmbiWYWgskSTsqLuWfzXXXtlXkb1iOO37kT_Y5zr71Wp1RJ1Fp38yIyHI6fR9hKqeNALSqhv2ALmcSMQsFGTtPG98lGulu-vRJJhgMJ3C3fSTljN7o9BM7Jz-h0ymxC8sSMSNsXakK1qu40vD40zRJMB09sBPjIAVo"
}

which i suppose to use it in authorization header to consume my API, as follow:

Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGcXXXJSUzI1NiIsImp0aSI6ImEzYjJhZmU5OTYzMTE5MDAyZDAwZmEzNzU0ZGY3ZTRkMTgwYzhlYWRmNGQyOGU5MTI4YjAyYjJmYWQxZjY1NjUzMzAyZjNlZTI4MTgxMDFhIn0.eyJhdWQiOiI4IiwianRpIjoiYTNiMmFmZTk5NjMxMTkwMDJkMXXXYTM3XXXkZjdlNGQxODBjOGVhZGY0ZDI4ZTkxMjhiMDJiMmZhZDFmNjU2NTMzMDJmM2VlMjgxODEwMWEiLCJpYXQiOjE1NDAwMTQxNTUsIm5iZiI6MTU0MDAxNDE1NSwiZXhwIjoxNTcxNTUwMTU1LCJzdWIiOiIiLCJzY29wZXMiOltdfQ.sNSYywfBf27yAojqZclpjliysbQARlYFktzanTMecXXXIai5DgJY0sKhGpHktP5cqirYdemoFKy2nOxzZ8g29gCQQ63zmxe3vpbDz1GAdrjCDWoUlwSXXXHx4VIsdSIzVdi9XyvPKaLKMdoL6nFeWgpgXKGIvHKdiHjKgQbY_08Qa6JMN5Up27qmIOQoXJNAf1nuXvBMabUU_Js7VNspwPfdC8nMZ5zhK1A_c32_lDRtHqkhDfqqBXdUB-inx-zixhn2ODC4b4tkdj7XXXXlVKFxHxKM3aVOMFlmKhypSDwIUB0dPsN8iHcLzkl1yjzRQcOvQEj5BXWLkLCPdkiX2YJuFiWGUm_nxiYoIRV3ptJDeBI5OJI870JTOwBfJePrHTbXmhbjNSQSflLtiOV34wbPQZWH3KMKcsGVYvXXX3rcO5cbZWeeJLGPPYYO-_AWDmdAm-Qsb6Tw1sPxEZRw0dw3zBHnLVrEK9GXXXN2U5wE9Ka3id8ecOJSXSD39X1PyZUB9dJTidmbiWYWgskSTsqLuWfzXXXtlXkb1iOO37kT_Y5zr71Wp1RJ1Fp38yIyHI6fR9hKqeNALSqhv2ALmcSMQsFGTtPG98lGulu-vRJJhgMJ3C3fSTljN7o9BM7Jz-h0ymxC8sSMSNsXakK1qu40vD40zRJMB09sBPjIAVo
Accept:application/json
Content-Type:application/json

I'm able to catch the bearer token with: $token = $request->bearerToken(); in my controller

But I have difficulties to validate it, anyone know how to validate that token?

what i'm trying to achieve is quite simple, if the Bearer token valid then continue... if not then throw 403.

**I'm not using user authentication (no user) so I can't put middleware Auth::api in route (unless you tell me this is possible to validate token only without user).*

Answer 1

Try this and let me know if any error occurs.

Add the following in App/Http/Kernel.php file in protected $routeMiddleware array:

'client.credentials' => \Laravel\Passport\Http\Middleware\CheckClientCredentials::class,

Now in your controller add the following in the beginning:

public function __construct()
{
   $this->middleware('client.credentials')->only(['']);
}

add your function names in the array to check if the request has an Authorization header with a token for the function.You do not need to do anything else.

You can check after, using postman with an incorrect token an error will return from the api as the result.

Also as a tip , do not put your "client_secret" on client side , it should not get in the wrong hands.

Use the following to generate a token for the user:

$user = User::where('email',$email)->where('password',$password)->firstOrFail();
$token = $user->createToken('Token')->accessToken;