Question

在我听说Firebase之后，我决定在我的小型Unity游戏上尝试它是个好主意。

我阅读了文档，遵循“入门”配置教程，并更改了身份验证规则，以便每个人都可以插入数据。

void Start()
{
    // Set up the Editor before calling into the realtime database.
    FirebaseApp.DefaultInstance.SetEditorDatabaseUrl("https://magicast-bd2fc.firebaseio.com/");

    Firebase.Auth.FirebaseAuth.DefaultInstance.StateChanged += DefaultInstance_StateChanged;

    // Get the root reference location of the database.
    DatabaseReference reference = FirebaseDatabase.DefaultInstance.RootReference;

    var u = new User();
    u.email = "sdjkdsdksadjsad";
    u.fb_id = "sakdsajdhasd";
    u.username = "jadhsjahjsda";
    reference.SetValueAsync(u);
}

此代码确实执行，但是当我转到Firebase控制台时，我看不到数据库选项卡上的数据。我无法弄清楚我做错了什么，代码完全没有错误！我做错了什么？

这是我的用户类。它基本上是一个测试类，没什么大不了的东西：

public class User
    {
        public string username;
        public string email;
        public string fb_id;

        public User()
        {
        }

        public User(string username, string email, string fb_id)
        {
            this.username = username;
            this.email = email;
            this.fb_id = fb_id;
        }
    }

Answer 1

您未经过身份验证，默认的Firebase安全规则要求const byte image[]={ B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000, B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000, B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000, B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000, B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000, ect ect ect。

请参阅docs了解如何使用Unity进行身份验证。

Answer 2

您无法在Firebase数据库的任意对象上调用.set()，它们必须属于以下类别之一：

string
long
double
bool
Dictionary<string, Object>
List<Object>

而不是

reference.SetValueAsync(u);

您需要致电

string json = JsonUtility.ToJson(u);
reference.SetRawJsonValueAsync(json);

您实际上并没有登录任何用户。要登录匿名用户，请先转到Firebase控制台 - ＆gt;验证并启用“匿名”＆＃39;开关。然后使用以下代码进行身份验证：

Firebase.Auth.FirebaseAuth auth = Firebase.Auth.FirebaseAuth.DefaultInstance;

auth.SignInAnonymouslyAsync().ContinueWith(task => {
  if (task.IsCanceled) {
    Debug.LogError("SignInAnonymouslyAsync was canceled.");
    return;
  }
  if (task.IsFaulted) {
    Debug.LogError("SignInAnonymouslyAsync encountered an error: " + task.Exception);
    return;
  }

  Firebase.Auth.FirebaseUser newUser = task.Result;
  Debug.LogFormat("User signed in successfully: {0} ({1})",
      newUser.DisplayName, newUser.UserId);
});

无法使用Firebase插入数据

2 个答案: