Php Laravel 响应 html 默认页面忽略控制器

我正在try 使用以下代码创建自定义身份验证控制器:

<?php

namespace App\Http\Controllers;

use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Hash;

class AuthController extends Controller
{
    public function register(Request $request)
    {
        //validate the request
        $request->validate([
            'name' => 'required|string|max:255',
            'email' => 'required|string|email|max:255|unique:users',
            'password' => 'required|string|min:8|confirmed',
        ]);

        $data = $request->all();

        //create new user
        $user = User::create([
            'name' => $data['name'],
            'email' => $data['email'],
            'password' => Hash::make($data['password']),
        ]);

        //return response
        return response()->json(['message' => 'Successfully created user!'], 201);
    }
}

控制器应该在数据库中创建一个新的用户条目，用户模型是Laravel的默认模型，没有进行任何更改.

在我的api.php路径文件中，我设置了以下简单的路径:

<?php

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;
use App\Http\Controllers\AuthController;


Route::middleware('auth:sanctum')->get('/user', function (Request $request) {
    return $request->user();
});

Route::post('/register', [AuthController::class, 'register']);

问题是，当我try 向/api/Register发送POST请求时，Laravel使用默认的html页面进行响应:

我到底做错了什么？考虑到这应该只是我的应用程序的后端，所以我不需要设置任何视图