How do I authenticate to the Lobby service?

Lobby requires some form of identification to uniquely identify players. The recommended way to obtain credentials is with the Unity Authentication Service (UAS), which will return both a player ID and an access token. When creating a lobby, the player ID obtained can be added to the CreateLobbyOptions Player object which will identify the host.

For more information, see the documentation on How to use Anonymous Sign-in, and Creating a lobby.