Firebase Firestore Task<DocumentSnapshot>.Result.Exists Always Returns False

Unity Engine
,
1

I’m new on Firebase Firestore and I trying to check if certain document exist on my database, but my boolean always return false. I’m using C# with Unity and Firebase v9.3.0.

public static void CheckIfUserAreRegistered()
{
    DocumentReference doc = Database.Collection("Users").Document(FacebookManager.UserID);

    doc.GetSnapshotAsync().ContinueWithOnMainThread(task =>
    {
        if (task.Result.Exists) UserAreRegistered = DefaultState.Yes;
        else UserAreRegistered = DefaultState.No;
    });

}

Here a image of my database data with respective id I’m searching:

I tried to change the code to use Async/Await operators, despite my Unity not showing any log error, my Visual Studio returns CS1061 exception (Task does not have a definition to “GetAwaiter”)

Here my Async/Await code:

public static async Task<DocumentSnapshot> WaitForCheckUsers()
{
        DocumentReference doc = Database.Collection("Users").Document(FacebookManager.UserID);

        return await doc.GetSnapshotAsync();
}

public static async void CheckIfUserAreRegistered()
{
        DocumentSnapshot doc = await WaitForCheckUsers();
        if (doc.Exists) UserAreRegistered = DefaultState.Yes;
        else UserAreRegistered = DefaultState.No;
        Debug.Log($"bool: {doc.Exists} UserID: {FacebookManager.UserID} Doc: {doc.Id}");
}

I don’t know what could be going on, if anyone can help me, I would be immensely grateful.

2

Try:

FirebaseFirestore _firestore = FirebaseFirestore.DefaultInstance;

void CheckIfUserAreRegistered()
{
_firestore.Document($"Users/{FacebookManager.UserID}").GetSnapshotAsync().ContinueWith(task =>
{
if (task.Result.Exists) Debug.Log("Exists");
else Debug.Log("No Exists");
});
}
3

have you ever find a solution for this, bec I’ve the same problem