Получение токена через Oauth2 апи гугла

require_once 'vendor/autoload.php';
 
        $client = new Google_Client();
        $client->setApplicationName('API code samples');
        $client->setScopes([
            'https://www.googleapis.com/auth/youtube.readonly',
        ]);
 
 
          // TODO: For this request to work, you must replace
        //       "YOUR_CLIENT_SECRET_FILE.json" with a pointer to your
        //       client_secret.json file. For more information, see
        //       https://cloud.google.com/iam/docs/creating-managing-service-account-keys
        $client->setAuthConfig('client_secret_370409434448-9pe2fr8e8dbljd9usvj7finu0c344fi9.apps.googleusercontent.com.json');
        $client->setAccessType('offline');
        $client->setApprovalPrompt('force');
 
        // Request authorization from the user.
        $authUrl = $client->createAuthUrl();
        printf("Open this link in your browser:\n%s\n", $authUrl);
        print('Enter verification code: ');
        define('STDIN',fopen("php://stdin","r"));
        $authCode = trim(fgets(STDIN));
 
        $accessToken = $client->fetchAccessTokenWithAuthCode($authCode);
        $client->setAccessToken($accessToken);

require_once 'vendor/autoload.php';
        putenv('GOOGLE_APPLICATION_CREDENTIALS=client_secret.json');
        $client = new Google\Client();
        $client->setScopes([
            'https://www.googleapis.com/auth/youtube.readonly',
        ]);
        $client->useApplicationDefaultCredentials();
 
        $service = new Google_Service_YouTube($client);
        $queryParams = [
            'channelId' => $kanal_id,
            'part' => 'snippet'
        ];
 
        $response = $service->playlists->listPlaylists('', $queryParams);
        print_r($response);