Callbackcontroller

allbackController.cs

  public class CallbackController : ApiController {
        [HttpPost]
        public async Task<SvamletModel> Post(CallbackEventModel model) {
            var sinch = SinchFactory.CreateCallbackResponseFactory(Locale.EnUs);
            var reader = sinch.CreateEventReader();
            var evt = reader.ReadModel(model);
            var builder = sinch.CreateIceSvamletBuilder();
            switch (evt.Event)
            {
                case Event.IncomingCall:
                    if (model.OriginationType == "MXP")
                    {
                        await ConnectToConference(model.To.Endpoint, model.From, builder);
                    }
                    else
                    {
                        builder.AddNumberInputMenu("menu1", "Enter 4 digit pin", 4, "Enter 4 digit pin", 3,
                            TimeSpan.FromSeconds(60));
                        builder.RunMenu("menu1");
                    }
                    break;
                case Event.PromptInput:
                    await ConnectToConference(model.MenuResult.Value, model.From, builder);
                    break;
                case Event.AnsweredCall:
                    builder.Continue();
                    break;
                case Event.DisconnectedCall:
                    break;
                default:
                    break;
            }
            return builder.Build().Model;
        }

        private async Task ConnectToConference(string pinCode, string cli, IIceSvamletBuilder builder) {
            using (var db = new ConferenceContext())
            {
                var conference =
                    await
                        db.Conferences.FirstOrDefaultAsync(
                            c => c.PinCode == pinCode && (c.ConferenceEndDate >= DateTime.Today || c.ValidForever));
                if (conference != null)
                {
                    builder.ConnectConference(conference.ConferenceId.ToString()).WithCli(cli);
                    // builder.SaySsml("<speak version =\"1.0\" xmlns=\"http://www.w3.org/2001/10/synthesis\" xml:lang=\"en-US\"><break strength=\"medium\" /><prosody rate=\"slow\">Welcome to the <break strength=\"medium\" />conference </prosody></speak>");
                    builder.Say("ah, Welcome to the conference");
                }
                else
                {
                    builder.Say("Invalid code").Hangup(HangupCause.Normal);
                }
            }
        }
    }