https://andrewlock.net/introduction-to-authentication-with-asp-net-core/

https://stormpath.com/blog/tutorial-policy-based-authorization-asp-net-core

https://social.technet.microsoft.com/wiki/contents/articles/36804.asp-net-core-mvc-authentication-and-role-based-authorization-with-asp-net-core-identity.aspx

https://jonhilton.net/2017/05/03/login-authentication-asp-net-core-web-api-big-picture/