Laravel Passport，从令牌获取用户给 null

Question

我正在使用 Laravel Passport 来验证 Laravel API 索引函数

public function index(Request $request)
    {
        $userId=auth('api')->user()->id;
        dd(auth('api')->user()->id);
        return User::find($userId)->conversations()->with('messages','otherUser')->get();
    }

test_index函数

public function test_index(): void
    {
        $response = $this->withHeaders([
            'Authorization' => 'Bearer ' . 'eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9.eyJhdWQiOiIxIiwianRpIjoiNDJiNWQyZGZlYzMzYWY5ZjczY2JlZjQ4NDAzMGVkZGZhNjE4ZWNkZDFmOGZjYzM3NTVmMGE2Y2QxZGNkZGEwYmY1MTFhZDBhMTA5NDI2YTAiLCJpYXQiOjE2OTA1ODgxNzYuMzk2MzEzLCJuYmYiOjE2OTA1ODgxNzYuMzk2MzE1LCJleHAiOjE3MjIyMTA1NzYuMjg3ODcxLCJzdWIiOiIyNiIsInNjb3BlcyI6W119.P9890yV3ra5fjlfq3D7qzbv9VxFlJZoXDZxP1Z-DX13P60ND9OwaFSemd7oBq_mydeRgnoNIN9m8RQ7neLdCW1TdNwnufwqcaYuSp4Bb0UucVN-cbv77xc58levfnIddUK54M08CnoWYKmH3n4vzlv0npdUOzmirKsAWp8qMe3zD9_5HiN0NEDWPwQHTu9KitKglradkE6naOMfkYv_uzBvWbfLnCTqW-zHtOzycxD-U5N9TQCq2zRPwMj2ffF-GIeSB6hArHQxmdAReGA4KKdWkvnyOMzLDRnXthuJbZhw38Cjr1at9j5Tg87FDAXfqOUflhZZfM759zVaPyvSH7hUT0g33JMTNpdGCE04h4i2Z26k8CPEcS_JQKSSkk7VJofh4-bgXW5i0PzP82Rnpw89B_3sZbqXjzoItivSL8as7S5hzAO9hT653PqzrUbFdcMnXTbZDRVbp6Qgp7s6qJPCk9yhJK8K2Wz-Ecgiu81dz4Mw7rLzhXlQrlTtOISoY0kMuYElDE-cj2T7nTy69ZVIURpucg3eEfuiIuZ3Qv-jedjU6iElNACQu9FnUmAcc_PqLMSJw_ZPwKf9e_RVzm7Kckc7kJ1l5NalzezaWbzx1CXJlmVJ7RLtGkXsSEFsaaKVUV7bBWr7KLYRJ-ADO4ppy2KBNaOmsnnC3ozKuiCk',
        ])->get('/api/conversations');

        $response->assertStatus(200);
    }

现在，当我使用 dd() 索引运行测试时，它返回 1，这是正确的值，但是当我删除它时，我收到错误 Attempt to read property "id" on null

这段代码有什么问题？