The Bot entry point for an ASP.NET Web Api

BotFrameworkEndpoint.cs

[BotAuthentication]
 public class MessagesController : ApiController
 {
    private readonly ITableService _tableService;

    public MessagesController(ITableService tableService)
    {
      _tableService = tableService;
      }
      
      public async Task<HttpResponseMessage> Post([FromBody] Activity activity)
      {
        if (activity.Type == ActivityTypes.Message ||
		activity.Type == ActivityTypes.Event && 
		activity.Value is InternalEventMessage)
                await Conversation.SendAsync(activity,
                                             () => new NewPostcardDialog(Conversation.Container.Resolve<IAppSettingsService>());
            else
                HandleSystemMessage(activity);

            var response = Request.CreateResponse(HttpStatusCode.OK);
            return response;
        }
    }