Initialize UGS and authenticate the player

1. In the Unity Editor, go to the Project window, then select Assets > Scripts.
2. Right-click (macOS: Ctrl+click) Scripts.
3. Select Create > Scripting > MonoBehaviour Script.
4. Name the script

   SessionManager

   .
5. Right-click (macOS: Ctrl+click) in the Hierarchy window and select Create Empty.
6. Enter

   SessionManager

   as the name.
7. Select this new

   SessionManager

   GameObject.
8. In its Inspector window, select Add Component.
9. Select your

   SessionManager

   script.
10. In the Project window, double-click the

    SessionManager

    script. The script opens in your preselected IDE.
11. Replace the contents of

    SessionManager.cs

    with the following code:
    

    using UnityEngine;using Unity.Services.Core;using System;using Unity.Services.Authentication;public class SessionManager : MonoBehaviour{    async void Start()    {	    try	    {	     await UnityServices.InitializeAsync();	     await AuthenticationService.Instance.SignInAnonymouslyAsync();	     Debug.Log($"Sign in anonymously succeeded! PlayerID: {AuthenticationService.Instance.PlayerId}");	    }	    catch (Exception e)	    {	     Debug.LogException(e);	    }    }}

    In the above code:
    • The line

      await UnityServices.InitializeAsync();

      initializes Unity Gaming Services SDKs.
    • The line

      await AuthenticationService.Instance.SignInAnonymouslyAsync();

      anonymously authenticates the player.
    The Authentication SDK supports anonymous authentication and external authentication solutions for supported platforms, including mobile and PC. Refer to Approaches to authentication for more details. Anonymous authentication requires no special configuration, making it easier to use than external authentication and more suitable for prototyping.
    As the developer, you must authenticate your players after initializing Multiplayer Services in your code.