Print claims

Claims.cs

public class CustomAuthorizeAttribute : AuthorizeAttribute
{
	protected override bool IsAuthorized(HttpActionContext actionContext)
	{
		var principal = actionContext.RequestContext.Principal as ClaimsPrincipal;
    
		System.Text.StringBuilder s = new System.Text.StringBuilder();
		s.AppendLine("Type,Value,ValueType");
		principal.Claims.ToList().ForEach(c => s.AppendLine($"{c.Type},{c.Value},{c.ValueType}"));
		System.Diagnostics.Debug.WriteLine(s.ToString());
	}
}