update

app/Http/Controllers/Passport/LoginController.php

@@ -54,4 +54,10 @@ class LoginController extends Controller
         }
         header('Location:' . $location);
     }
+
+    public function check (Request $request) {
+        return response([
+            'data' => $request->session()->get('id') ? true : false
+        ]);
+    }
 }

routes/api.php

@@ -106,6 +106,7 @@ Route::prefix('v1')
                 // Login
                 Route::post('login', 'Passport\\LoginController@index');
                 Route::get ('token2Login', 'Passport\\LoginController@token2Login');
+                Route::get ('check', 'Passport\\LoginController@check');
                 // Forget
                 Route::post('forget', 'Passport\\ForgetController@index');
             });