public IActionResult AuthorizeResponse(string code)
        {
            if (String.IsNullOrEmpty(code))
            {
                var model = new InstagramDone()
                {
                    Error            = Request.Query["error"].ToString(),
                    ErrorReason      = Request.Query["error_reason"].ToString(),
                    ErrorDescription = Request.Query["error_description"].ToString()
                };

                return(Json(model));
            }
            else
            {
                var accessToken = _client.GetAccessToken(code).Result;

                return(Content(accessToken.Json));
            }
        }