HttpClient client = new HttpClient();
                client.BaseAddress = new Uri("http://localhost:57752");
                HttpResponseMessage response = client.GetAsync("api/Auth/Login/" + user.Username + "/" + user.Password).Result;
                JsonResult result = null;
                if (response.IsSuccessStatusCode)
                {
                    result = response.Content.ReadAsAsync<JsonResult>().Result;
                    JavaScriptSerializer json_serializer = new JavaScriptSerializer();
                    User validUser=
                            (User)json_serializer.DeserializeObject(result.Data.ToString());//Throws Exp.
                }

[System.Web.Http.Route("api/Auth/Login/{username}/{password}")]
    public ActionResult Login(string username, string password)
    {
        User loginuser = new Models.User() { Username = username, Password = password };
        try
        {
                loginuser = context.UserRepository.checkUserExist(loginuser);
                return new JsonResult
                {
                    Data = loginuser,
                    JsonRequestBehavior = JsonRequestBehavior.AllowGet
                };