I realize that this may be a bit old, but i'm trying to do the same as the original question. That can be seen here: SteamAuth var from startup.auth to the view ASP.NET
I have written everything that you have, but the 'Steam.Models.ApplicationDbContext()' isn't working for me.
Is that something that is only present within MY project, making it a naming convention error, or something else?
If someone knows of a way to get the information that is return from app.UseSteamAuthentication(API Key); that would work too.
Also the link to the tutorial is returning a 404 error. I'd like to look at if it's still available.
Thanks for the help. :)