Bot Activity Logger

BotActivityLogger.cs

    public sealed class BotActivityLogger : Microsoft.Bot.Builder.History.IActivityLogger
    {
        public async Task LogAsync(IActivity activity)
        {
            var message = activity.AsMessageActivity();
            var text = message.Text;
        }
    }
    
    [BotAuthentication]
    public class MessagesController : ApiController
    {
        static MessagesController()
        {

            var builder = new Autofac.ContainerBuilder();
            builder.RegisterType<BotActivityLogger>().AsImplementedInterfaces().InstancePerDependency();
            builder.Update(Conversation.Container);
        }
        /*...*/
    }