此问题已在此处有答案：

Route [login] not defined（20个回答）
3天前关闭。
我想为数据库操作（创建、编辑、删除）启用访问路由，只对经过身份验证的用户，但我一直在Postman中收到登录名未定义的消息。我希望删除路由在中间件中。
这就是我的API：

<?php

use App\Http\Controllers\AuthController;
use App\Http\Controllers\UserController;
use  App\Http\Controllers\StudentController;
use  App\Http\Controllers\ExamController;
use  App\Http\Controllers\StudentExamController;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;

// Ova ruta nije zaštićena i dostupna je svim korisnicima
Route::post('register', [AuthController::class, 'register']);
Route::post('login', [AuthController::class, 'login']);

// Grupa ruta zaštićenih middleware-om auth:sanctum
Route::group(['middleware' => ['auth']], function() {

// Rute za manipulaciju bazom
Route::delete('exams/{id}/delete', [ExamController::class, 'destroy']);
Route::post('exams/create', [ExamController::class, 'create']);
Route::put('exams/{id}/edit', [ExamController::class, 'edit']);

// Rute za logout
Route::post('logout', [AuthController::class, 'logout']);

});

// Rute koje ne zahtevaju autentifikaciju
Route::get('users', [UserController::class, 'index']);
Route::get('users/{id}', [UserController::class, 'show']);
Route::get('students', [StudentController::class, 'index']);
Route::get('students/{id}', [StudentController::class, 'show']);
Route::get('exams', [ExamController::class, 'index']);
Route::get('studentexams', [StudentExamController::class, 'index']);
Route::get('studentexams/{id}', [StudentExamController::class, 'showExams']);

这是我的ExamController.php：

<?php

namespace App\Http\Controllers;

use App\Models\Exam;
use Illuminate\Http\Request;
use App\Http\Resources\ExamResource;

class ExamController extends Controller
{
/**
 * Display a listing of the resource.
 *
 * @return \Illuminate\Http\Response
 */
public function index()
{
    return response()->json(Exam::all());
}

/**
 * Update the specified resource in storage.
 *
 * @param  \Illuminate\Http\Request  $request
 * @param  \App\Models\Exam  $exam
 * @return \Illuminate\Http\Response
 */
public function destroy($exam_id)
{
    $examIds = array_values((array) Exam::pluck('id'))[0];

    if(!in_array($exam_id, $examIds)){
        return response()->json([
            'message' => 'Exam ID does not exist',
        ]);
    }

    $Exam = Exam::find($exam_id); 

    if (!$Exam->delete()) {
        return response()->json([
            'error' => 'Unable to delete the Exam'
        ]);
 
     }
     $this->middleware('auth');
} 

}

我尝试添加$this-〉middleware（'auth'），但没有成功。我也尝试了所有已经存在的Stack overflow，什么都没有