The WS-FAM is implemented in the WSFederationAuthenticationModule class. Typically, you add the WS-FAM to the HTTP pipeline of your ASP.NET RP application.
Here’s an overview of how WebAPI binds parameters to an action method. I’ll describe how parameters can be read, the set of rules that determine which technique is used, and then provide some examples. [ update ] Parameter binding is ultimately about taking a HTTP request and converting it into .NET types so that you can have a better action signature.