public override void OnCreate() { base.OnCreate(); userId = JwtHelper.GetAspNetUserId(UserSettings.Token); dbWriter = new SignalsDBWriter(this); timer = new Timer { Interval = 30000, Enabled = true }; timer.Elapsed += (s, e) => { Logger.Info("trying to sent telemetry..."); var type = MediaType.Parse("application/json; charset=utf-8"); var telemetry = dbWriter.ReadTelemetry(userId, out ids); if (telemetry?.Count > 0) { var str = Newtonsoft.Json.JsonConvert.SerializeObject(telemetry, new Trigger.Classes.TelemetryJsonConverter()); var body = RequestBody.Create(type, str); OkHttpClient client = new OkHttpClient(); Request request = new Request.Builder() .Url(Url) .Header("scn-dev-msg", "") .Post(body) .Build(); Callback c = new Callback { Writer = dbWriter, Ids = ids }; var all_signals = telemetry.SelectMany(b => b.Select(i => i)).ToList(); Logger.Info("Send Telemetry: " + all_signals.Count.ToString()); client.NewCall(request).Enqueue(c); } else { Logger.Info("No signals to send"); } }; }