Resource based (Imperative) authorization won't enter the handler

Question

Scenario:

• I have an API with .net core 2.2
• On top my controller I authorize access using IdentityServer4 with an Attribute
• Inside one of my endpoints I want to authorize access to a method only in some cases

I implemented resource based authorization inside my endpoint just like it's shown in microsoft documentation. It didn't work. I put a breakpoint inside my authorization handler and tried debugging, but when this handler should be called, it is not. I mean that when the following line runs

var authorizationResult = await _authorizationService
            .AuthorizeAsync(User, Document, "EditPolicy");

the Handler should be called, but that never happens.

Did anyone have the same problem?

Answer 1

So in the end the problem was due to the registration of the service in the startup.cs. I was using TryAddScope, by changing to AddScope it worked fine.