Steam#

Callback<GetTicketForWebApiResponse_t> m_AuthTicketForWebApiResponseCallback;
string m_SessionTicket;
string identity = "unityauthenticationservice"

void SignInWithSteam()
{
    // It's not necessary to add event handlers if they are 
    // already hooked up.
    // Callback.Create return value must be assigned to a 
    // member variable to prevent the GC from cleaning it up.
    // Create the callback to receive events when the session ticket
    // is ready to use in the web API.
    // See GetAuthSessionTicket document for details.
    m_AuthTicketForWebApiResponseCallback = Callback<GetTicketForWebApiResponse_t>.Create(OnAuthCallback);

    SteamUser.GetAuthTicketForWebApi(identity);
}

void OnAuthCallback(GetTicketForWebApiResponse_t callback)
{
    m_SessionTicket = BitConverter.ToString(callback.m_rgubTicket).Replace("-", string.Empty);
    m_AuthTicketForWebApiResponseCallback.Dispose();
    m_AuthTicketForWebApiResponseCallback = null;
    Debug.Log("Steam Login success. Session Ticket: " + m_SessionTicket);
    // Call Unity Authentication SDK to sign in or link with Steam, displayed in the following examples, using the same identity string and the m_SessionTicket.
}

async Task SignInWithSteamAsync(string ticket, string identity)
{
    try
    {
        await AuthenticationService.Instance.SignInWithSteamAsync(ticket, identity);
        Debug.Log("SignIn is successful.");
    }
    catch (AuthenticationException ex)
    {
        // Compare error code to AuthenticationErrorCodes
        // Notify the player with the proper error message
        Debug.LogException(ex);
    }
    catch (RequestFailedException ex)
    {
        // Compare error code to CommonErrorCodes
        // Notify the player with the proper error message
        Debug.LogException(ex);
    }
}

async Task LinkWithSteamAsync(string ticket, string identity)
{
    try
    {
        await AuthenticationService.Instance.LinkWithSteamAsync(ticket, identity);
        Debug.Log("Link is successful.");
    }
    catch (AuthenticationException ex) when (ex.ErrorCode == AuthenticationErrorCodes.AccountAlreadyLinked)
    {
        // Prompt the player with an error message.
        Debug.LogError("This user is already linked with another account. Log in instead.");
    }
    catch (Exception ex)
    {
        Debug.LogError("Link failed.");
        Debug.LogException(ex);
    }
}

async Task SignInWithSteamAsync(string ticket, string identity)
{
    try
    {
        await AuthenticationService.Instance.SignInWithSteamAsync(ticket, identity);
    }
    catch (AuthenticationException ex)
    {
        // Compare error code to AuthenticationErrorCodes
        // Notify the player with the proper error message
        Debug.LogException(ex);
    }
    catch (RequestFailedException ex)
    {
        // Compare error code to CommonErrorCodes
        // Notify the player with the proper error message
        Debug.LogException(ex);
    }
}

async Task SignInWithSteamAsync(string ticket, string identity, string appId)
{
    try
    {
        await AuthenticationService.Instance.SignInWithSteamAsync(ticket, identity, appId);
        Debug.Log("SignIn is successful.");
    }
    catch (AuthenticationException ex)
    {
        // Compare error code to AuthenticationErrorCodes
        // Notify the player with the proper error message
        Debug.LogException(ex);
    }
    catch (RequestFailedException ex)
    {
        // Compare error code to CommonErrorCodes
        // Notify the player with the proper error message
        Debug.LogException(ex);
    }
}

Unlink Steam account#
Use the `UnlinkSteamAsync` API so your players can unlink their Steam account. Once unlinked, if their account isn’t linked to any additional identity, it transitions to an anonymous account.

async Task UnlinkSteamAsync(string idToken)
{
   try
   {
       await AuthenticationService.Instance.UnlinkSteamAsync(idToken);
       Debug.Log("Unlink is successful.");
   }
   catch (AuthenticationException ex)
   {
       // Compare error code to AuthenticationErrorCodes
       // Notify the player with the proper error message
       Debug.LogException(ex);
   }
   catch (RequestFailedException ex)
   {
       // Compare error code to CommonErrorCodes
       // Notify the player with the proper error message
       Debug.LogException(ex);
   }
}