public IHttpActionResult Post([FromBody] Activity activity) { if (string.IsNullOrEmpty(activity.Text)) { return(NotFound()); } string reply = ""; if (activity.Type == ActivityTypes.Message) { // calculate something for us to return int length = (activity.Text ?? string.Empty).Length; var keyPhrases = TextAnalytics.GetKeyPhrases(activity.Text, activity.Id); //MessageDB.MessagesList.Add(message); var keys = _keyWords_manager.FindKeyWords(activity.Text, _question_manager.CurrentTopic); if (keys.Count == 0) { var topic = _keyWords_manager.RecognizeTopic(activity.Text); if (topic != Topic.None) { reply = _question_manager.GetQuestion(topic); } } _question_manager.AllowToNextQuestion = keys.Count > 0; if (String.IsNullOrEmpty(reply)) { if (_question_manager.CurrentTopic == Topic.Experience) { if (_question_manager.CurrentTopic == Topic.Experience) { string txt = ""; foreach (var key in keyPhrases.Result.documents) { txt += key + ", "; } txt += " seems cool!"; } } reply = _question_manager.GetQuestion(); } // connector.Conversations.ReplyToActivityAsync(reply); } else { HandleSystemMessage(activity); } //var response = Request.CreateResponse(HttpStatusCode.OK); //response.Content = //return response; return(Ok(reply)); }