Question How to properly implement server generated VAT for vivox actions?

Hello,

I am currently using vivox sdk version 15.1.200000-pre.1 with Unity 2021.3.21f1. My project is linked with unity dashboard and I am not using test mode (mtu1xp backend is being used. Also not using unity authentication package).



I want to use server generated token. So I generated my VAT token in my server & used it in my client project. It worked & I thought I successfully logged in using my server generated login token. Then instead of my server generated token I used -

• Case 1: Empty string.
• Case 2: Random string like - "Hello World" or "I am Token"

In case of "Case 1", I got an error while trying to login as expected.

But in case of "Case 2", I successfully logged in to vivox even joined a channel the same way which was not suppose to. If "Case 2" is working then the whole process of token generation doesn't make any sense. I even checked my dashboard. It also shows that I successfully logged in. (Attaching an image with dashboard vivox login data. Red marked area is with random string.)



Now I am confused why it is working successfully without properly generated access token. Am I missing any necessary step? Is vivox somehow still generating test token if it finds invalid token internally? I am providing my code below.

Code (CSharp):

1. [SerializeField] private VivoxClientCredentials _credentials; //scriptable object with my dashboard credential
2. private Client _client;
3. private AccountId _accountId;
4.  
5. public async Task InitializeUnityServices()
6. {
7.     var options = new InitializationOptions();
8.     options.SetVivoxCredentials(_credentials.Server, _credentials.Domain, _credentials.Issuer);
9.     await UnityServices.InitializeAsync(options);
10.     Debug.Log("Unity services initialized");
11. }
12.  
13. public async Task Initialize()
14. {
15.     if(VivoxService.Instance.Client != null && VivoxService.Instance.Client.Initialized)
16.     {
17.         return;
18.     }
19.     await InitializeUnityServices();
20.     VivoxService.Instance.Initialize();
21.     _client = VivoxService.Instance.Client;
22.     Debug.Log("Vivox client initialized");
23. }
24.  
25. public async void LoginVivox(string userId, string username)
26. {
27.     try
28.     {
29.         if(_loginSession != null && _loginSession.State == LoginState.LoggedIn)
30.         {
31.             return;
32.         }
33.         await Initialize();
34.         _accountId = new AccountId
35.             (
36.                 VivoxService.Instance.Issuer,
37.                 userId,
38.                 VivoxService.Instance.Domain,
39.                 username,
40.                 null,
41.                 VivoxService.Instance.EnvironmentId
42.             );
43.          string accessToken = await GetVivoxLoginTokenFromMyServerAsync(); //My server generated token
44.         _vivoxLogin.Login(_client.GetLoginSession(_accountId), new Uri(_credentials.Server), accessToken);
45.     }
46.     catch (Exception ex)
47.     {
48.         Debug.LogError(ex);
49.     }
50. }
51.  
52. public void Login(ILoginSession loginSession, Uri serverUri, string accessToken)
53. {
54.     if (loginSession == null || serverUri == null))
55.     {
56.         return;
57.     }
58.  
59.     loginSession.PropertyChanged += LoginSession_PropertyChanged;
60.     loginSession.BeginLogin(serverUri, accessToken , ar =>
61.     {
62.         try
63.         {
64.             loginSession.EndLogin(ar);
65.         }
66.         catch (Exception e)
67.         {
68.             // Handle error
69.             Debug.LogError(nameof(e));
70.             // Unbind if we failed to login.
71.             loginSession.PropertyChanged -= LoginSession_PropertyChanged;
72.         }
73.     });
74. }
75.  
76. private void LoginSession_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
77. {
78.     var loginSession = (ILoginSession)sender;
79.     if (e.PropertyName == "State")
80.     {
81.         switch(loginSession.State)
82.         {
83.             case LoginState.LoggingIn:
84.                 Debug.Log("Trying to login vivox.");
85.                 break;
86.             case LoginState.LoggedIn:
87.                 Debug.Log("Logged in to the vivox.");
88.                 break;
89.             case LoginState.LoggingOut:
90.                 Debug.Log("Trying to logout vivox.");
91.                 break;
92.             case LoginState.LoggedOut:
93.                 Debug.Log("Logged out of the vivox.");
94.                 break;
95.             default:
96.                 Debug.Log("Something went wrong while trying to log in to the vivox.");
97.                 break;
98.         }
99.     }
100. }

In case of "Case 2" I get "logged in to vivox." every time. I donno why. It's possible I missed something but donno what.

 

I have the same issue.
I am using vivox core sdk version 5.21.0.33641.4d38c7cc.