// Sends device telemetry data to IoT Hub
private async Task <bool> SendDeviceEventAsync(LoRaDevice loRaDevice, Rxpk rxpk, object decodedValue, LoRaPayloadData loRaPayloadData, LoRaOperationTimeWatcher timeWatcher)
{
var deviceTelemetry = new LoRaDeviceTelemetry(rxpk, loRaPayloadData, decodedValue)
{
DeviceEUI = loRaDevice.DevEUI,
GatewayID = this.configuration.GatewayID,
Edgets = (long)(timeWatcher.Start - DateTime.UnixEpoch).TotalMilliseconds
};
Dictionary <string, string> eventProperties = null;
if (loRaPayloadData.IsUpwardAck())
{
eventProperties = new Dictionary <string, string>();
Logger.Log(loRaDevice.DevEUI, $"Message ack received for C2D message id {loRaDevice.LastConfirmedC2DMessageID}", LogLevel.Information);
eventProperties.Add(C2D_MSG_PROPERTY_VALUE_NAME, loRaDevice.LastConfirmedC2DMessageID ?? C2D_MSG_ID_PLACEHOLDER);
loRaDevice.LastConfirmedC2DMessageID = null;
}
var macCommand = loRaPayloadData.GetMacCommands();
if (macCommand.MacCommand.Count > 0)
{
eventProperties = eventProperties ?? new Dictionary <string, string>();
for (int i = 0; i < macCommand.MacCommand.Count; i++)
{
eventProperties[macCommand.MacCommand[i].Cid.ToString()] = JsonConvert.SerializeObject(macCommand.MacCommand[i], Formatting.None);
// in case it is a link check mac, we need to send it downstream.
if (macCommand.MacCommand[i].Cid == CidEnum.LinkCheckCmd)
{
// linkCheckCmdResponse = new LinkCheckCmd(rxPk.GetModulationMargin(), 1).ToBytes();
}
}
}
if (await loRaDevice.SendEventAsync(deviceTelemetry, eventProperties))
{
var payloadAsRaw = deviceTelemetry.Data as string;
if (payloadAsRaw == null && deviceTelemetry.Data != null)
{
payloadAsRaw = JsonConvert.SerializeObject(deviceTelemetry.Data, Formatting.None);
}
Logger.Log(loRaDevice.DevEUI, $"message '{payloadAsRaw}' sent to hub", LogLevel.Information);
return(true);
}
return(false);
}