/// <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)
{
if (!string.IsNullOrEmpty(activity.Text))
{
//detect language of input text
var userLanguage = await TranslateService.DetermineLanguageAsync(activity.Text);
//save user's LanguageCode to Azure Table Storage
var message = activity as IMessageActivity;
try
{
using (var scope = DialogModule.BeginLifetimeScope(Conversation.Container, message))
{
var botDataStore = scope.Resolve <IBotDataStore <BotData> >();
var key = new AddressKey()
{
BotId = message.Recipient.Id,
ChannelId = message.ChannelId,
UserId = message.From.Id,
ConversationId = message.Conversation.Id,
ServiceUrl = message.ServiceUrl
};
var userData = await botDataStore.LoadAsync(key, BotStoreType.BotUserData, CancellationToken.None);
var storedLanguageCode = userData.GetProperty <string>(AppSettings.UserLanguageKey);
//update user's language in Azure Table Storage
if (storedLanguageCode != userLanguage)
{
userData.SetProperty(AppSettings.UserLanguageKey, userLanguage);
await botDataStore.SaveAsync(key, BotStoreType.BotUserData, userData, CancellationToken.None);
await botDataStore.FlushAsync(key, CancellationToken.None);
}
}
}
catch (Exception ex)
{
throw ex;
}
activity.Text = await TranslateService.TranslateTextToDefaultLanguage(activity, userLanguage);
await Conversation.SendAsync(activity, MakeRoot);
}
}
else
{
await HandleSystemMessage(activity);
}
var response = Request.CreateResponse(HttpStatusCode.OK);
return(response);
}