이해가 하나도 안되다가 이해하기 쉬운 코드를 알게되어 정리하여 둔다. // composer.json "laravel/passport" : "^2.0" // api.php Route:: post ( 'auth/token' , 'Restful\TokenController@authenticate' ) ; Route:: post ( 'auth/refresh' , 'Restful\TokenController@refreshToken' ) ; class TokenController extends Controller { /** * @var object */ private $client; /** * DefaultController constructor. */ public function __construct() { // Get grant type : password... $this->client = DB::table('oauth_clients')->where('id', 2)->first(); } /** * @param Request $request * @return mixed */ protected function authenticate(Request $request) { $request->request->add([ 'username' => $request->username, 'password' => $request->password, 'grant_type' => 'password...