@JasonL Thanks, I ended up with this cloudCode: isForceCreate = String(data.callingMessage.forceCreate) == "true"; isNewUser = String(data.message.newUser) == "true"; var response = {}; response.status = 200; response.data = data.message; if (isForceCreate && isNewUser) { var min = 10000000, max = 999999999 prefix = ["player", "user", "member"] const num = Math.floor(Math.random() * (max - min + 1)) + min; const pre = prefix[Math.floor(Math.random() * prefix.length)]; var defaultPlayerName = pre + String(num); var playerStateProxy = bridge.getPlayerStateServiceProxy(); // We are changing the player name on the server. playerStateProxy.updatePlayerName(defaultPlayerName); // And in this API Call's return data. response.data.playerName = pre + String(num); } response; //return the object This works just the way I need

Call AttachUniversalIdentity() method from client lib, the username is uniqueness enforced.

I downloaded the BrianCloud plug in for Unreal Engine, I can integrate user authentication, and real-time chat between connected players in a day.

@JasonL I understand the reason, but please do provide a way to pass custom data to authenticate api so we can use that data to set user displayname or profile picture or soemthing else on post-hook. Without this, we have no choice but to call a seperate call from client (so no beneift of 2 free api inside cloud call)

Hmm, actually Eric, authentication only happens when called directly in brainCloud. If you try calling an API and your app isn't authenticated, you'll receive an error - and generally would trigger authentication yourself as part of your error handling. Does that make sense? Paul.