Fail Implementing SqlBotDataStore - botframework

Question

I have implemented SqlBotDataStore for bot storage but the LoadAsync method is silently failing. This is in the MessageController's POST. No exceptions are thrown anywhere, it just stops at this line, the chat bot continues as if nothing ever happened but storage does not work:
var botDataStore = scope.Resolve<IBotDataStore<BotData>>();
var key = Address.FromActivity(activity);
try
{
var userData = await botDataStore.LoadAsync(key, BotStoreType.BotPrivateConversationData, CancellationToken.None);
userData.SetProperty<Translator>("translator", new Translator());
userData.SetProperty<bool>("autoDetectLanguage", true);
userData.SetProperty<bool>("autoTranslateToBot", true);
userData.SetProperty<bool>("autoTranslateToUser", true);
await botDataStore.SaveAsync(key, BotStoreType.BotPrivateConversationData, userData, CancellationToken.None);
}
catch (HttpException e)
{
Debug.WriteLine(e.Message);
}
I cannot seem to get past this and unfortunately don't have any more information because literally no error or anything happens here. When debugging it just never goes to the next line and continues execution silently.

Answer 1

Based on this github sample using Azure Sql Storage to store the bot state, I modify the sample with following updates and do a test, which work for me. You can compare the sample with your implementation to find differences.
In MessagesController:
public async Task<HttpResponseMessage> Post([FromBody]Activity activity)
{
if (activity.Type == ActivityTypes.Message)
{
if (activity.Text == "savetest")
{
var message = activity as IMessageActivity;
using (var scope = DialogModule.BeginLifetimeScope(Conversation.Container, message))
{
var botDataStore = scope.Resolve<IBotDataStore<BotData>>();
var key = Address.FromActivity(activity);
try
{
var userData = await botDataStore.LoadAsync(key, BotStoreType.BotPrivateConversationData, CancellationToken.None);
//userData.SetProperty<Translator>("translator", new Translator());
userData.SetProperty<bool>("autoDetectLanguage", true);
userData.SetProperty<bool>("autoTranslateToBot", true);
userData.SetProperty<bool>("autoTranslateToUser", true);
await botDataStore.SaveAsync(key, BotStoreType.BotPrivateConversationData, userData, CancellationToken.None);
await botDataStore.FlushAsync(key, CancellationToken.None);
}
catch (HttpException e)
{
Debug.WriteLine(e.Message);
}
}
}
await Conversation.SendAsync(activity, () => new Dialogs.EchoDialog());
}
else
{
HandleSystemMessage(activity);
}
var response = Request.CreateResponse(HttpStatusCode.OK);
return response;
}
In EchoDialog:
var tval = context.PrivateConversationData.GetValueOrDefault<bool>("autoTranslateToBot", false);
await context.PostAsync("You said: " + message.Text + $"; autoTranslateToBot is {tval.ToString()}");
context.Wait(MessageReceivedAsync);
Test result: