Return Dynamic Object From Web Api

    public HttpResponseMessage Contactz()
        {
            var data = new List();
            data.Add("abc");
            data.Add("abc");
            data.Add("abc");
            data.Add("abc");
            return new HttpResponseMessage
            {
                Content = new StringContent(JArray.FromObject(data).ToString(), Encoding.UTF8, "application/json")
            };
        }

MVC Custom Authetication

  public class HomeController : Controller
    {
        [CustomRole]
        public ActionResult Index()
        {
            return View();
        }

  
    }



 [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, Inherited = true, AllowMultiple = true)]
    public class CustomRole : AuthorizeAttribute
    {
        protected override bool AuthorizeCore(HttpContextBase context)
        {
            //Call from db
            var a = 3;
            if (a==2)
            {
                return true;
            }
            else { return false; }
        }
    }