Logging in with Steam Account without having the Epic Account PopUp

[OsamaBinScratchy]

Hi,
Is there a way to connect to EOS with your Steam account without having the Epic Account Popup? I've read that in unreal you need to Enable EOSPlus but couldn't find anything for Unity.
The answer here reads like it isn't.
Could anyone please clarify?

[WispyMouse]

Ahoy! I might have an idea on how to help. I want to understand your situation a bit more, first.

Let's start by looking at SteamManager.StartLoginWithSteam. If you're using our samples this is the function that is called when you select "ExternalAuth" as your login type, while other platform defines are not set. When this is successful, the UILoginMenu code then calls the normal flow of creating an external link if there isn't one, and then doing a Connect login.

In order for this to work, you'll need to make your game have the "steam_appid.txt" in your build as usual, but also to enable Steam as an external identity provider. You can read more on setting up external authentication providers in this Epic documentation.

Does this help get you started? Are you experiencing any set up where the Epic Account Popup shows after your user has tried to authenticate using Steam?

[OsamaBinScratchy]

Hi, thanks for the reply.
I did exactly that. The only difference is, that instead of using the SteamManager and SteamUser.GetAuthTicketForWebApi for the session ticket, i've used SteamUser.GetAuthSessionTicketAsync. Could this make a difference?. Because instead of Steamworks.net, i'm using facepunch, and it doesn't offer GetAuthTicketForWebApi. Also steam_appid.txt isn't in my build, because i have code in place to prevent the game from being copied and this will remove the file. But i assume it's only required for the steammanager to grab the correct id?

Update:
I've replaced Facepunch with Steamworks.net and now use the SteamManager from the Samples. I need to build a new build to know if it makes any difference. at least in the editor the overlay wasn't shown. but i'm not sure if it was before.

Update #2:
Currently i'm using SteamManager.GetSessionTicketTask and GetAuthTicketForWebApi. When doing so, the SteamNetworkIdentity-Value in EOS IdentityProvider has to be empty, or the authentication will fail. When Setting the value to "epiconlineservices" i have to use SteamManager.GetSessionTicket. Which one am i suppose to use?

Update #3:
I've tried both, and both lead to the same result: epic account sign in prompt appears and epic overlay is shown. So i guess it's not possible currently.

[WispyMouse]

Because instead of Steamworks.net, i'm using facepunch, and it doesn't offer GetAuthTicketForWebApi.

Unfortunately at time of writing, Facepunch's support is being deprecated. There's a major Steam SDK version update coming soon, and Facepunch doesn't have the tools to meet that change's requirements. So it's probably a good thing you switched to Steamworks!

But i assume it's only required for the steammanager to grab the correct id?

I think it's required for Steamworks to function. Incidentally, make sure you've updated your SteamManager.STEAM_APPID to point at your game's app ID!

I need to build a new build to know if it makes any difference. at least in the editor the overlay wasn't shown. but i'm not sure if it was before.

The overlay does not function inside the Editor; it's expected that it only appears in builds.

When Setting the value to "epiconlineservices" i have to use SteamManager.GetSessionTicket. Which one am i suppose to use?

Looking at the back-end for the demo project this plugin uses to test things, I can see that "SteamNetworkingIdentity value" is set to "epiconlineservices". I've also provided the game's App Id. So I think you're configured correctly there.

I've tried both, and both lead to the same result: epic account sign in prompt appears and epic overlay is shown. So i guess it's not possible currently.

I'll get back to you soon on this! I'm asking inside the team if a Connect login without an Auth login would achieve what you're looking for.

[WispyMouse]

Alright yea! I want you to try doing only a connect login.

If we look at SteamManager, you'll find StartLoginWithSteam (this is an Auth login) and StartConnectLoginWithSteamSessionTicket (this is a Connect login). Try making your code only run the Connect login, and see what happens. If you get "InvalidUser" as a response, run EOSManager.Instance.CreateConnectUserWithContinuanceToken with the responded continuance token, and then run StartConnectLoginWithSteamSessionTicket again.

[OsamaBinScratchy]

Awesome, this did the trick.
Steam to Steam client now works as intended. Epic version currently building but i don't see any reason why Steam to Epic or Epic to Epic won't work (it already did in the Editor).
Many thanks for your help.