public static async void SendData(Object telemetryDataPoint, string deviceKey)
{
deviceClient = DeviceClient.Create(iotHubUri, new DeviceAuthenticationWithRegistrySymmetricKey(App.deviceName, deviceKey));
while (true)
{
var messageString = JsonConvert.SerializeObject(telemetryDataPoint);
var message = new Microsoft.Azure.Devices.Client.Message(Encoding.ASCII.GetBytes(messageString));
await deviceClient.SendEventAsync(message);
}
}
public static async void SendDeviceToCloudMessagesAsync(string deviceId, object data)
{
//double avgWindSpeed = 10; // m/s
//Random rand = new Random();
while (true)
{
//double currentWindSpeed = avgWindSpeed + rand.NextDouble() * 4 - 2;
var telemetryDataPoint = new
{
deviceId = deviceId,
//windSpeed = currentWindSpeed
value = data
};
var messageString = JsonConvert.SerializeObject(telemetryDataPoint);
var message = new Microsoft.Azure.Devices.Client.Message(Encoding.ASCII.GetBytes(messageString));
await deviceClient.SendEventAsync(message);
//Console.WriteLine("{0} > Sending message: {1}", DateTime.Now, messageString);
//Thread.Sleep(1000);
}
}
private static async void SendDeviceToCloudMessagesAsync()
{
var weatherDataprovider = await SimulatedWeatherSensorProvider.Create();
for (int i = 0; i < 288; i++)
{
double currentHumidity = weatherDataprovider.GetHumidity();
double currentTemperature = weatherDataprovider.GetTemperature();
double currentWindSpeed = weatherDataprovider.GetWindSpeed();
var telemetryDataPoint = new
{
time = DateTime.Now.ToString(),
deviceId = deviceId,
currentHumidity = currentHumidity,
currentTemperature = currentTemperature,
currentWindSpeed = currentWindSpeed
};
var messageString = JsonConvert.SerializeObject(telemetryDataPoint);
var message = new Microsoft.Azure.Devices.Client.Message(Encoding.ASCII.GetBytes(messageString));
await deviceClient.SendEventAsync(message);
Console.WriteLine("{0} > Sending message: {1}", DateTime.Now, messageString);
await Task.Delay(500);
}
}
public static async void SendData(Object telemetryDataPoint, string deviceKey)
{
deviceClient = DeviceClient.Create(iotHubUri, new DeviceAuthenticationWithRegistrySymmetricKey(App.deviceName, deviceKey));
while (true)
{
var messageString = JsonConvert.SerializeObject(telemetryDataPoint);
var message = new Microsoft.Azure.Devices.Client.Message(Encoding.ASCII.GetBytes(messageString));
await deviceClient.SendEventAsync(message);
}
}
void SendToIoTHubAsBatch(Microsoft.Azure.Devices.Client.Message message)
{
long currMessageSizeInBytes = message.GetBytes().LongLength;
if (bufferedSizeInBytes + currMessageSizeInBytes >= maxBatchSizeInBytes)
{
FlushIoTHubBuffer();
}
sendBuffer.Add(message);
bufferedSizeInBytes += currMessageSizeInBytes;
}
/*
* private static async void SendDeviceToCloudMessagesAsync()
* {
* double avgWindSpeed = 10; // m/s
* Random rand = new Random();
*
* while (true)
* {
* double currentWindSpeed = avgWindSpeed + rand.NextDouble() * 4 - 2;
*
* var telemetryDataPoint = new
* {
* windSpeed = currentWindSpeed
* };
* var messageString = JsonConvert.SerializeObject(telemetryDataPoint);
* var message = new Microsoft.Azure.Devices.Client.Message(Encoding.ASCII.GetBytes(messageString));
* //message.Properties["messageType"] = "interactive";
* //message.MessageId = Guid.NewGuid().ToString();
*
* await deviceClient.SendEventAsync(message);
* Console.WriteLine("{0} > Sending message: {1}", DateTime.Now, messageString);
*
* Task.Delay(10000).Wait();
* }
* }
*/
private static async void SendDeviceToCloudMessagesAsync(string messageString)
{
var message = new Microsoft.Azure.Devices.Client.Message(Encoding.ASCII.GetBytes(messageString));
//message.Properties["messageType"] = "interactive";
//message.MessageId = Guid.NewGuid().ToString();
await deviceClient.SendEventAsync(message);
Console.WriteLine("{0} > Sending message: {1}", DateTime.Now, messageString);
Task.Delay(10000).Wait();
}
private async void main(IBackgroundTaskInstance taskInstance)
{
var def = taskInstance.GetDeferral();
Microsoft.Azure.Devices.Client.Message message = await deviceClient.ReceiveAsync();
string name = message.Properties["name"];
screen.SetText(name);
def.Complete();
}
private async void SendDeviceToCloudMessagesAsync(string msg)
{
// Set deviceId to RbHeader
JObject jo_message = JsonConvert.DeserializeObject<JObject>(msg);
jo_message["RbHeader"]["SourceDeviceId"] = comboBoxDeviceId.Text;
jo_message["RbHeader"]["MessageSeqno"] = "1";
jo_message["RbHeader"]["SendDateTime"] = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff");
msg = JsonConvert.SerializeObject(jo_message);
var message = new Microsoft.Azure.Devices.Client.Message(Encoding.UTF8.GetBytes(msg));
await deviceClient.SendEventAsync(message);
}
private async Task SendDeviceToCloudMessagesAsync(Device device, string deviceId)
{
string iotHubUri = _connectionstring.Split(';')
.First(x => x.StartsWith("HostName=", StringComparison.InvariantCultureIgnoreCase))
.Replace("HostName=", "").Trim();
if (device == null)
{
ServiceEventSource.Current.ServiceMessage(Context, "Device '{0}' doesn't exist.", deviceId);
}
var deviceClient = DeviceClient.Create(
iotHubUri,
new DeviceAuthenticationWithRegistrySymmetricKey(deviceId, device.Authentication.SymmetricKey.PrimaryKey));
List <object> events = new List <object>();
for (int i = 0; i < 10; ++i)
{
var body = new
{
Timestamp = DateTimeOffset.UtcNow.Subtract(TimeSpan.FromMinutes(i))
};
events.Add(body);
}
Microsoft.Azure.Devices.Client.Message message;
var serializer = new JsonSerializer();
using (var stream = new MemoryStream())
{
using (var streamWriter = new StreamWriter(stream))
{
using (JsonTextWriter jsonWriter = new JsonTextWriter(streamWriter))
{
serializer.Serialize(jsonWriter, events);
}
}
message = new Microsoft.Azure.Devices.Client.Message(stream.GetBuffer());
message.Properties.Add("DeviceID", deviceId);
message.Properties.Add("Temparature", _temperature == 0 ? "50" : _temperature.ToString());
message.Properties.Add("FanSpeed", "256");
message.Properties.Add("IsOnline", "true");
//message.Properties.Add("GatewayId", "1234"); --> SiteId (RegistrationMessage)
await deviceClient.SendEventAsync(message);
ServiceEventSource.Current.ServiceMessage(Context, $"Sent message: {Encoding.UTF8.GetString(stream.GetBuffer())}");
}
}
private static async void ReceiveC2dAsync()
{
Console.WriteLine("\nReceiving cloud to device messages from service");
while (true)
{
Microsoft.Azure.Devices.Client.Message receivedMessage = await deviceClient.ReceiveAsync();
if (receivedMessage == null)
{
continue;
}
string opStr = Encoding.ASCII.GetString(receivedMessage.GetBytes());
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine("Received message: {0}", opStr);
Console.ResetColor();
await deviceClient.CompleteAsync(receivedMessage);
if (opStr.StartsWith("GPS"))
{
SendDeviceToCloudMessagesAsync(devPos);
}
if (opStr.StartsWith("SET ID"))
{
int idx = opStr.IndexOf("=");
monitorId = opStr.Substring(idx + 1);
SendDeviceToCloudMessagesAsync("OK");
}
if (opStr.StartsWith("SET URL"))
{
int idx = opStr.IndexOf("=");
monitorUrl = opStr.Substring(idx + 1);
SendDeviceToCloudMessagesAsync("OK");
}
if (opStr.StartsWith("BUZZ ON"))
{
BuzzControl(true);
SendDeviceToCloudMessagesAsync("OK");
}
if (opStr.StartsWith("BUZZ OFF"))
{
BuzzControl(false);
SendDeviceToCloudMessagesAsync("OK");
}
}
}
Microsoft.Azure.Devices.Client.Message MakeMessage(string devId, int colorVal, int messageCount)
{
var m = new
{
DevID = devId,
ColorVal = colorVal,
MessageCount = messageCount
};
var messageString = JsonConvert.SerializeObject(m);
var message = new Microsoft.Azure.Devices.Client.Message(Encoding.ASCII.GetBytes(messageString));
return(message);
}
private static Message GetStateMessage(out string messageString)
{
// Create JSON message
var stateMessage = new
{
currentObject = _currentObject
};
messageString = JsonConvert.SerializeObject(stateMessage);
var message = new Message(Encoding.ASCII.GetBytes(messageString));
return(message);
}
/// <summary>
/// Sends a D2C message containing the deviceId in the message payload
/// </summary>
/// <param name="dc"></param>
/// <param name="index"></param>
private void SendMessage(DeviceClient dc, long index)
{
try
{
Microsoft.Azure.Devices.Client.Message msg = new Microsoft.Azure.Devices.Client.Message(Encoding.UTF8.GetBytes(_prefix + index));
dc.SendEventAsync(msg);
Console.WriteLine($"Sent message to {_prefix}{index}");
}
catch (Exception e)
{
Console.WriteLine($"SendMessage Error: {e.Message}");
}
}
private async void SendDeviceToCloud(WriteLine writeLine)
{
GetStateMessage(out var messageString);
var message = new Message(Encoding.ASCII.GetBytes(messageString));
// Add references to what method this is
message.Properties.Add("Method", $"{_currentDevice.Hub.Name}.{_currentDevice.Name}.GetSelectedObject");
// Send the telemetry message
await _sDeviceClient.SendEventAsync(message);
writeLine($"{DateTime.Now} > Sending message: {messageString}");
}
// Async method to send simulated telemetry
private static async Task SendDeviceToCloudMessagesAsync()
{
ContinueLoop = true;
OnDeviceStatusUpdate?.Invoke("IoT Hub Telemetry - Device sending messages.");
while (ContinueLoop)
{
Azure_IoTHub_Sensors.TelemetryDataPoint telemetryDataPoint;
if (Azure_IoTHub_Sensors.Weather.CurrentWeather.DoAsync)
{
telemetryDataPoint = await Azure_IoTHub_Sensors.Weather.CurrentWeather.GetWeatherAsync();
}
else
{
telemetryDataPoint = Azure_IoTHub_Sensors.Weather.CurrentWeather.GetWeather();
}
MessageString = JsonConvert.SerializeObject(telemetryDataPoint);
Message = new Message(Encoding.ASCII.GetBytes(MessageString));
//Message.UserId = Azure_IoTHub_Connections.MyConnections.IoTHubName;
Message.Properties.Add("temperatureAlert", (telemetryDataPoint.temperature > 30) ? "true" : "false");
Message.Properties.Add("humidityAlert", (telemetryDataPoint.humidity > 80) ? "true" : "false");
Message.Properties.Add("pressureAlert", (telemetryDataPoint.pressure > 1010) ? "true" : "false");
Azure_IoTHub_Telemetry.SyntheticIoTMessage iotmessage = new Azure_IoTHub_Telemetry.SyntheticIoTMessage(Message);
MessageString = iotmessage.Serialise();
System.Diagnostics.Debug.WriteLine("{0} > Sending message: {1}", DateTime.Now, MessageString);
SetDeviceSentMsg?.Invoke(string.Format("{0} > Sending message: {1}", DateTime.Now, MessageString));
// Send the telemetry message
if (!IsDeviceStreaming)
{
await s_deviceClient.SendEventAsync(Message);
Delay = 1000 * Azure_IoTHub_Connections.MyConnections.TelemetryDelayBtwReadings;
await Task.Delay(Delay);
if (!ContinueLoop)
{
OnDeviceStatusUpdate?.Invoke("Cancelled Telemetry - Device end");
}
}
else
{
ContinueLoop = false;
}
}
}
private static async Task SendDeviceToCloudMessagesAsync(string deviceId, string tenant)
{
string iotHubUri = connectionString.Split(';')
.First(x => x.StartsWith("HostName=", StringComparison.InvariantCultureIgnoreCase))
.Replace("HostName=", "").Trim();
Device device = devices.FirstOrDefault(x => x.Id == deviceId);
if (device == null)
{
Console.WriteLine("Device '{0}' doesn't exist.", deviceId);
}
DeviceClient deviceClient = DeviceClient.Create(
iotHubUri,
new DeviceAuthenticationWithRegistrySymmetricKey(deviceId, device.Authentication.SymmetricKey.PrimaryKey));
List <object> events = new List <object>();
for (int i = 0; i < 10; ++i)
{
var body = new
{
Timestamp = DateTimeOffset.UtcNow.Subtract(TimeSpan.FromMinutes(i))
};
events.Add(body);
}
Microsoft.Azure.Devices.Client.Message message;
JsonSerializer serializer = new JsonSerializer();
using (MemoryStream stream = new MemoryStream())
{
using (StreamWriter streamWriter = new StreamWriter(stream))
{
using (JsonTextWriter jsonWriter = new JsonTextWriter(streamWriter))
{
serializer.Serialize(jsonWriter, events);
}
}
message = new Microsoft.Azure.Devices.Client.Message(stream.GetBuffer());
message.Properties.Add("Insight Application UID", tenant);
message.Properties.Add("Device ID", deviceId);
await deviceClient.SendEventAsync(message);
Console.WriteLine($"Sent message: {Encoding.UTF8.GetString(stream.GetBuffer())}");
}
}
/// <summary>
/// Sends a device to cloud message
/// </summary>
private static void SendD2CMessage()
{
var d2CMessage = new D2CMessage
{
Humidity = "Low",
Temprature = 12.5F
};
var payload = JsonConvert.SerializeObject(d2CMessage);
var message = new Microsoft.Azure.Devices.Client.Message(Encoding.ASCII.GetBytes(payload));
_iotDevice.SendEventAsync(message).Wait();
}
// Sending thread - sends D2C messages to IoT Hub
private static async Task SendD2CMessageAsync(Device device, string text)
{
try
{
DeviceClient client = CreateDeviceClient(_appSettings.IoTHubUrl, device.Id, device.Authentication.SymmetricKey.SecondaryKey);
var msg = new Microsoft.Azure.Devices.Client.Message(Encoding.UTF8.GetBytes(text));
msg.Properties.Add("ClientTime", DateTime.UtcNow.ToString());
Logger.Info($"[{device.Id}]Sending {text}...");
await client.SendEventAsync(msg);
}
catch (Exception exp) {
Logger.Error($"[{device.Id}]Exception while calling SendD2CMessageAsync():[{exp.Message}]");
}
}
public async Task SendEventAsync <T>(T item, string messageType)
{
var json = JsonConvert.SerializeObject(item);
var bytes = Encoding.UTF8.GetBytes(json);
var message = new Message(bytes);
message.Properties.Add("messageType", messageType);
message.Properties.Add("correlationId", Guid.NewGuid().ToString());
message.Properties.Add("parentCorrelationId", Guid.NewGuid().ToString());
message.Properties.Add("createdDateTime", DateTime.UtcNow.ToString("u", DateTimeFormatInfo.InvariantInfo));
message.Properties.Add("deviceId", deviceName);
await deviceClient.SendEventAsync(message);
}
async Task Send(DeviceClient client, SensorRefViewModel viewModel, float value)
{
var bytes = Encoding.UTF8.GetBytes($"{value}");
var eventMessage = new Microsoft.Azure.Devices.Client.Message(bytes);
eventMessage.Properties.Add("DigitalTwins-Telemetry", "1.0");
eventMessage.Properties.Add("DigitalTwins-SensorHardwareId", $"{viewModel.HardwareId}");
eventMessage.Properties.Add("CreationTimeUtc", DateTime.UtcNow.ToString("o", System.Threading.Thread.CurrentThread.CurrentCulture));
eventMessage.Properties.Add("x-ms-client-request-id", Guid.NewGuid().ToString());
eventMessage.Properties.Add($"x-type", viewModel.Name);
eventMessage.Properties.Add($"x-value", $"{value}");
await client.SendEventAsync(eventMessage);
}
void TransmitEvent(string datapoint)
{
Microsoft.Azure.Devices.Client.Message message;
try
{
message = new Microsoft.Azure.Devices.Client.Message(Encoding.UTF8.GetBytes(datapoint));
_deviceClient.SendEventAsync(message);
}
catch (Exception ex)
{
System.Diagnostics.Trace.TraceError(ex.Message);
}
}
[HttpGet] public async Task <ActionResult> SendMessage(string id, string key, int value)
{
var telemetryDataPoint = new { deviceId = id, telemetry = value };
var messageString = JsonConvert.SerializeObject(telemetryDataPoint);
var message = new Message(Encoding.ASCII.GetBytes(messageString));
var deviceClient = DeviceClient.Create(iotHubUri, new DeviceAuthenticationWithRegistrySymmetricKey(id, key));
await deviceClient.SendEventAsync(message);
Response.StatusCode = 200; // OK = 200
return(null);
}
private async Task SendWorker(CancellationToken cancellationToken)
{
INetworkPacket networkPacket = null;
while (!cancellationToken.IsCancellationRequested)
{
try
{
if (!_queue.TryDequeue(out networkPacket))
{
//await Task.Delay(100);
continue;
}
var correlationId = Guid.NewGuid();
switch (networkPacket)
{
case PushDataPacket pushDataPacket:
{
var data = _payloadSerializer.Serialize(pushDataPacket.Payload);
var message = new Microsoft.Azure.Devices.Client.Message(data);
message.CorrelationId = correlationId.ToString();
message.Properties["EventId"] = correlationId.ToString();
message.Properties["CorrelationId"] = correlationId.ToString();
message.Properties["DeviceId"] = pushDataPacket.Eui;
message.Properties["ProtocolName"] = "Lora Packet Forwarder";
message.Properties["ProtocolVersion"] = pushDataPacket.ProtocolVersion.ToString();
message.Properties["MessageType"] = pushDataPacket.MessageType.ToString();
message.CreationTimeUtc = DateTime.UtcNow;
_logger.Info($"Sending PushDataPacket to IoT Hub by deviceid '{_deviceId}'", GetType().Name);
await _device.Send(message);
}
break;
}
}
catch (BrokenCircuitException ex)
{
_logger.Error($"Circuit breaker open -> An error occured while sending a message to IoT Hub by deviceid '{_deviceId}'. Discarding message", GetType().Name, ex);
}
catch (Exception ex)
{
_logger.Error($"An error occured while sending a message to IoT Hub by deviceid '{_deviceId}'", GetType().Name, ex);
}
}
}
public async Task <int> SendStringToHub(string str)
{
try
{
var message = new Microsoft.Azure.Devices.Client.Message(Encoding.UTF8.GetBytes(str));
await deviceClient.SendEventAsync(message);
return(1);
}
catch (Exception ex)
{
return(0);
}
}
private async void M_t_Tick(object sender, EventArgs e)
{
Microsoft.Azure.Devices.Client.Message message = createMessage();
//Add properties for routing
if (rnd.NextDouble() > 0.8)
{
message.Properties.Add("direction", "eventhub");
}
if (rnd.NextDouble() > 0.9)
{
message.Properties.Add("status", "error");
}
await m_dc.SendEventAsync(message);
}
private async void cmd05SendTelemetryAlert_Click(object sender, RoutedEventArgs e)
{
if (m_t == null || m_dc == null)
{
return;
}
Microsoft.Azure.Devices.Client.Message message = createMessage();
//Add properties for routing
message.Properties.Add("alert", "1");
await m_dc.SendEventAsync(message);
Debug.WriteLine("ALERT");
}
static async Task ProcessMessagesAsync(Message message, CancellationToken token)
{
try{
string msgBody = Encoding.UTF8.GetString(message.Body);
if (string.IsNullOrEmpty(msgBody))
{
throw new ArgumentNullException("Message body is null or empty");
}
// Check if this is a schedule notification
string timestamp = DateTime.Now.ToString("dd/MM/yy hh:mm:ss");
if (ScheduleUpdateEventSchema.IsValid(msgBody))
{
ScheduleData eventData = JsonConvert.DeserializeObject <ScheduleData>(msgBody);
// Remove expired events
eventData.Schedule = ServiceBusClient.FilterAppointments(eventData);
msgBody = JsonConvert.SerializeObject(eventData);
byte[] messageBytes = Encoding.UTF8.GetBytes(msgBody);
IoT.Message pipeMessage = new IoT.Message(messageBytes);
await ioTHubModuleClient.SendEventAsync("ScheduleOutput", pipeMessage);
Console.WriteLine($"{timestamp} sucessfully handling ScheduleOutput message as {msgBody}");
// Check if this is sensort notification
}
else if (NotificationEventSchema.IsValid(msgBody))
{
//TODO: process events from sensors
//await ioTHubModuleClient.SendEventAsync("SensorsOutput", pipeMessage);
Console.WriteLine($"{timestamp} sucessfully handling SensorsOutput message {msgBody}");
}
else
{
// Process the message
Console.WriteLine($"Unknown message format: SequenceNumber:{message.SystemProperties.SequenceNumber} Body:{msgBody}");
throw new ArgumentException("Unknown message format");
}
}catch (Exception ex) {
Console.WriteLine($"Error processing message: {ex.Message} {ex.StackTrace}");
}finally{
// Complete the message so that it is not received again.
// This can be done only if the subscriptionClient is opened in ReceiveMode.PeekLock mode (which is default).
await subscriptionClient.CompleteAsync(message.SystemProperties.LockToken);
}
}
private async Task ReadAsync()
{
var mfrc = new Mfrc522();
await mfrc.InitIOAsync();
await ResetAsync();
while (true)
{
try
{
if (mfrc.IsTagPresent())
{
Uid uid = mfrc.ReadUid();
if (uid.IsValid)
{
await CheckingAsync(uid);
DataBadge badge = new DataBadge
{
Orario = DateTime.Now,
Id = uid.FullUid,
Posizione = "Villafranca"
};
_pinBlueLed.SetDriveMode(GpioPinDriveMode.Output);
_pinBlueLed.Write(GpioPinValue.High);
var messageString = JsonConvert.SerializeObject(badge);
var message = new Microsoft.Azure.Devices.Client.Message(Encoding.ASCII.GetBytes(messageString));
message.Properties.Add("DeviceId", DeviceId);
await _client.SendEventAsync(message);
}
else
{
await ErrorReadAsync();
}
mfrc.HaltTag();
}
}
catch (Exception ex)
{
await _client.CloseAsync();
var e = ex;
}
}
}
/// <summary>
/// This method is called whenever the module is sent a message from the EdgeHub.
/// It just pipe the messages without any change.
/// It prints all the incoming messages.
/// </summary>
static async Task <MessageResponse> PipeMessage(Message message, object userContext)
{
try
{
int counterValue = Interlocked.Increment(ref counter);
var moduleClient = userContext as ModuleClient;
if (moduleClient == null)
{
throw new InvalidOperationException("UserContext doesn't contain " + "expected values");
}
byte[] messageBytes = message.GetBytes();
string messageString = Encoding.UTF8.GetString(messageBytes);
Console.WriteLine($"Received message: {counterValue}, Body: [{messageString}]");
var libraryModule = "LibraryModule";
var deviceId = System.Environment.GetEnvironmentVariable("IOTEDGE_DEVICEID");
// var resultFromServiceClient = await CallModuleUsingServiceClient(deviceId, libraryModule);
var resultFromModuleClient = await CallModuleUsingModuleClient(deviceId, libraryModule, moduleClient);
var resultFromWebApi = await CallWebApiModule();
Console.WriteLine($"API result: {resultFromWebApi}");
if (!string.IsNullOrEmpty(messageString))
{
var pipeMessage = new Microsoft.Azure.Devices.Client.Message(messageBytes);
foreach (var prop in message.Properties)
{
pipeMessage.Properties.Add(prop.Key, prop.Value);
}
// pipeMessage.Properties.Add("resultFromServiceClient", resultFromServiceClient);
pipeMessage.Properties.Add("resultFromModuleClient", resultFromModuleClient);
await moduleClient.SendEventAsync("output1", pipeMessage);
Console.WriteLine("Received message sent");
}
return(MessageResponse.Completed);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
return(MessageResponse.None);
}
}
private async void SendDeviceToCloudMessagesAsync(Bmp180SensorData sensorData)
{
var messageString = JsonConvert.SerializeObject(new WeatherDTO
{
// bestAccuracyLocationName
dateTime = LastUpdated,
temperature = sensorData.Temperature,
pressure = sensorData.Pressure,
altitude = sensorData.Altitude,
latitude = LocationManager.currentlocation.Position.Latitude,
longitude = LocationManager.currentlocation.Position.Longitude,
});
var message = new Microsoft.Azure.Devices.Client.Message(Encoding.ASCII.GetBytes(messageString));
await deviceClient.SendEventAsync(message);
}
public async Task PurgeIoTHubMessagesAsync(DeviceClient deviceClient)
{
while (true)
{
Microsoft.Azure.Devices.Client.Message receivedMessage = await deviceClient.ReceiveAsync(TimeSpan.FromSeconds(5)).ConfigureAwait(false);
if (receivedMessage == null)
{
// all messages purged
break;
}
// purge message
await deviceClient.CompleteAsync(receivedMessage).ConfigureAwait(false);
}
}
public void SendMessageToAzureIoTHub(string message)
{
if (myDev != null)
{
try
{
var EventMessage = new Microsoft.Azure.Devices.Client.Message(System.Text.Encoding.UTF8.GetBytes(message));
myDev.SendEventAsync(EventMessage); // send message
}
catch (Exception ex)
{
Debug.WriteLine("Error:/n" + ex.Message);
}
}
}
public async Task Send(Microsoft.Azure.Devices.Client.Message message)
{
await _retryPolicy.ExecuteAsync(async() =>
{
await _circuitBreakerPolicy.ExecuteAsync(async() =>
{
if (_deviceClient == null)
{
throw new DeviceNotInitiatedException(_deviceId);
}
await _deviceClient.SendEventAsync(message);
});
});
}
public override void Run()
{
Trace.Write("starting");
var deviceKey = GetOrAddDeviceAsync().Result;
string deviceConnectionString = String.Format("{0};DeviceId={1};DeviceKey={2}", Properties.Settings.Default.IotHubConnectionString, Properties.Settings.Default.TestDeviceName, deviceKey);
var client = DeviceClient.CreateFromConnectionString(deviceConnectionString);
var TwoMonthsAgo = DateTime.Now.AddMonths(-2);
var r = new Random();
foreach (var td in this.GetTestTraps())
{
var m = new EventModel
{
TrapId = Guid.Parse(td.TrapId),
Location = td.Location,
Building = td.Building
};
var current = new DateTime(TwoMonthsAgo.Year, TwoMonthsAgo.Month, 1);
var switched = false;
while (current < DateTime.UtcNow)
{
m.Time = current;
m.Type = (byte)(switched ? 2 : 1);
var msg = new Microsoft.Azure.Devices.Client.Message(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(m)));
client.SendEventAsync(msg).Wait();
switched = !switched;
var samplePeriod = r.Next(45, 2880);
current = current.AddMinutes(samplePeriod);
}
}
Trace.Write("Completed");
}
private static async Task SendDeviceToCloudMessagesAsync(string deviceId, string tenant)
{
string iotHubUri = connectionString.Split(';')
.First(x => x.StartsWith("HostName=", StringComparison.InvariantCultureIgnoreCase))
.Replace("HostName=", "").Trim();
Device device = devices.FirstOrDefault(x => x.Id == deviceId);
if (device == null)
{
Console.WriteLine("Device '{0}' doesn't exist.", deviceId);
}
DeviceClient deviceClient = DeviceClient.Create(
iotHubUri,
new DeviceAuthenticationWithRegistrySymmetricKey(deviceId, device.Authentication.SymmetricKey.PrimaryKey));
List<object> events = new List<object>();
for (int i = 0; i < 10; ++i)
{
var body = new
{
Timestamp = DateTimeOffset.UtcNow.Subtract(TimeSpan.FromMinutes(i))
};
events.Add(body);
}
Microsoft.Azure.Devices.Client.Message message;
JsonSerializer serializer = new JsonSerializer();
using (MemoryStream stream = new MemoryStream())
{
using (StreamWriter streamWriter = new StreamWriter(stream))
{
using (JsonTextWriter jsonWriter = new JsonTextWriter(streamWriter))
{
serializer.Serialize(jsonWriter, events);
}
}
message = new Microsoft.Azure.Devices.Client.Message(stream.GetBuffer());
message.Properties.Add("TenantID", tenant);
message.Properties.Add("DeviceID", deviceId);
await deviceClient.SendEventAsync(message);
Console.WriteLine($"Sent message: {Encoding.UTF8.GetString(stream.GetBuffer())}");
}
}
/// <summary>
/// Sends an event to IoT Hub using the provided eventId GUID
/// </summary>
/// <param name="device"></param>
/// <param name="eventId"></param>
/// <param name="eventData"></param>
/// <returns></returns>
public async Task SendEventAsync(Guid eventId, dynamic eventData)
{
try {
byte[] bytes;
string objectType = EventSchemaHelper.GetObjectType(eventData);
var objectTypePrefix = _configurationProvider.GetConfigurationSettingValue("ObjectTypePrefix");
if (!string.IsNullOrWhiteSpace(objectType) && !string.IsNullOrEmpty(objectTypePrefix))
{
eventData.ObjectType = objectTypePrefix + objectType;
}
// sample code to trace the raw JSON that is being sent
//string rawJson = JsonConvert.SerializeObject(eventData);
//Trace.TraceInformation(rawJson);
bytes = _serializer.SerializeObject(eventData);
var message = new Microsoft.Azure.Devices.Client.Message(bytes);
message.Properties["EventId"] = eventId.ToString();
await AzureRetryHelper.OperationWithBasicRetryAsync(async () =>
{
try
{
await _deviceClient.SendEventAsync(message);
}
catch (Exception ex)
{
_logger.LogError(
"{0}{0}*** Exception: SendEventAsync ***{0}{0}EventId: {1}{0}Event Data: {2}{0}Exception: {3}{0}{0}",
"\n",//Console.Out.NewLine,
eventId,
eventData,
ex);
}
});
}
catch (Exception ex)
{
_logger.LogError("{0}{0}*** Exception: Serialization error ***{0}{0}EventId: {1}{0}Event Data: {2}{0}Exception: {3}{0}{0}",
"\n",//Console.Out.NewLine,
eventId,
eventData,
ex);
}
}
// Create a message and send it to IoT Hub.
static async Task SendEvent(DeviceClient deviceClient, Car CurrentCar, VehicleTireReading TireData)
{
try
{
string jsonData = JsonConvert.SerializeObject(TireData);
Microsoft.Azure.Devices.Client.Message eventMessage = new Microsoft.Azure.Devices.Client.Message(Encoding.UTF8.GetBytes(jsonData));
eventMessage.Properties.Add("messagetype", "TLM");
await deviceClient.SendEventAsync(eventMessage);
Console.WriteLine("Sent Data for Vehicle={0};ReadingId={1}", CurrentCar.Id, TireData.ReadingId);
}
catch (Exception ex)
{
Console.WriteLine("An error occured writing to event hub" + ex.ToString());
}
}