context.Request.User is null in OWIN OAuthAuthorizationServerProvider

Question

I\'m trying to implement OAuth using OWIN for a Web API v2 endpoint on my local intranet. The API is hosted in IIS using built-in Windows Authentication. In short, this is wha

Answer 1

Swap the order of UseOAuthAuthorizationServer and UseOAuthBearerAuthentication. UseOAuthBearerAuthentication calls UseStageMarker(PipelineStage.Authenticate); to make it (and everything before it) run earlier in the ASP.NET pipeline. User is null when you run during the Authenticate stage.