Using I(Async)ResultFilter with TypedResults

[TDroogh]

Hi community,

I'm using ASP.NET core version 10.0.7 with API contrllers.
We're currently using the IActionResult interface as return type on our controller actions and would like to migrate to TypedResults, as this provides strong typing for responses AND automatically documents the response types in our OpenAPI specifications.

With the old ActionResults i was able to create an IAsyncResultFilter and inspect the type of the result. This can be done quite easily by using pattern checking on the type ObjectResult, or other derived types such as NotFoundResult. However, for the TypedResult classes, the result type is HttpActionResult, which is an ASP.NET core internal type. So for now, i don't have a way to access the (typed) result using this filter, other than using reflection to access the Result property of the HttpActionResult, but that doesn't feel like the way to do it.

I could not find any documentation on other filters that are able to access the (typed) result, so am i missing something, or should the HttpActionResult type be public instead of internal?