/// <summary>
/// POST: api/Messages
/// Receive a message from a user and reply to it
/// </summary>
public async Task <HttpResponseMessage> Post([FromBody] Activity activity)
{
if (activity.Type == ActivityTypes.Message && activity.Attachments.Count > 0)
{
ConnectorClient connector = new ConnectorClient(new Uri(activity.ServiceUrl));
var imageattachment = activity.Attachments?.FirstOrDefault(a => a.ContentType.Contains("image"));
Activity reply = activity.CreateReply(await FaceHelper.UploadAndDetectFaces(imageattachment.ContentUrl));
await connector.Conversations.ReplyToActivityAsync(reply);
}
else
{
HandleSystemMessage(activity);
}
var response = Request.CreateResponse(HttpStatusCode.OK);
return(response);
}