net9.0 
namespace Microsoft.AspNetCore.Identity.Service
{
    public abstract class SessionManager
    {
        public abstract Task<Session> CreateSessionAsync(string userId, string clientId);
    }
}
.NET
5.06.07.08.09.010.011.0
.NET Core
2.02.12.23.03.1
Information specific to net9.0
Assembly

Microsoft.AspNetCore.Identity.Service , Version=1.0.0.0, PublicKeyToken=adb9793829ddae60

Referencing

Your project needs a package reference to Microsoft.AspNetCore.Identity.Service.

Package Microsoft.AspNetCore.Identity.Service (1.0.0-preview1-final) netcoreapp2.0
Preview This API is contained in a prerelease package.
Platform Restrictions

This API is supported on all platforms.

  • Built-in API
  • Package-provided API