Securing ASP.NET Core WebApi with an API Key by @domze domstamand.com

I read the article from Aram Tchekrekjian, which he goes in great length about techniques to secure a Web API, that is, using a Middleware and using an attribute that uses the IAsyncActionFilter. I would like to add another technique to this list using also an attribute, but one that uses the IAsyncAuthorizationFilter instead.