public async Task <IActionResult> Registracija(RegisterRequest model)
        {
            var response = await _authApi.RegisterAsync(model);

            if (response.StatusCode == HttpStatusCode.OK)
            {
                return(Redirect("/Prijava"));
            }
            else
            {
                TempData["error_message"] = ErrorParser.Parse(response.Error.Content);
                return(View(nameof(Index), model));
            }
        }