Is there a ready-made base package for implementing a user system?

Question

.NET

From time to time I write small web services, often there it is necessary to cut "basic user functionality" such as registration, authorization, session support, push notifications or notifications through long requests, etc. Nuget, which can do all this without unnecessary gestures, can you tell me this?

Answer 1

asp.net Identity

Answer 2

The official variant from Microsoft is ASP.NET Identity . Extension pack for it: IdentityReboot .
Popular alternatives: IdentityServer , MembershipReboot .
Under .NET Core:
Official: ASP.NET Identity Core
IdentityServer4 , OpenIddict