Accessing post or get parameters in custom authorization MVC4 Web Api

Question

Is it possible to access post or get parameters via the HttpActionContext object?

I have a set of sensors that loggs data to a web server that provides a REST api.

Answer 1

I accessed the context route data to get the parameters from within a custom AuthorizeAttribute when calling something like /api/client/123/users:

public class CustomAuthorizeAttribute : AuthorizeAttribute
  {
     protected override bool IsAuthorized(System.Web.Http.Controllers.HttpActionContext actionContext)
     {
        var clientId = Convert.ToInt32(actionContext.ControllerContext.RouteData.Values["clientid"]);

        // Check if user can access the client account.

     }
  }