private async Task<bool> SendMessageAndWaitForResponse(ServiceClient serviceClient, string deviceId, UpdateAccessKeyRequest updateAccessKey)
{
var serviceMessage = new Message(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(updateAccessKey)));
serviceMessage.Ack = DeliveryAcknowledgement.Full;
serviceMessage.MessageId = Guid.NewGuid().ToString();
var feedbackReceiver = serviceClient.GetFeedbackReceiver();
var feedbackReceived = false;
var cancellationToken = new CancellationTokenSource(TimeSpan.FromSeconds(60)).Token;
var feedbackTask = Task.Run(async () =>
{
while (!feedbackReceived && !cancellationToken.IsCancellationRequested)
{
var feedbackBatch = await feedbackReceiver.ReceiveAsync(TimeSpan.FromSeconds(0.5));
if (feedbackBatch != null)
{
feedbackReceived = feedbackBatch.Records.Any(fm =>
fm.DeviceId == deviceId
&& fm.OriginalMessageId == serviceMessage.MessageId);
if (feedbackReceived)
{
await feedbackReceiver.CompleteAsync(feedbackBatch);
}
}
}
}, cancellationToken);
await Task.WhenAll(
feedbackTask,
serviceClient.SendAsync(deviceId, serviceMessage));
return feedbackReceived;
}
//------------------------------------------------------------------------------------------------------------------------
#endregion
#region Constructor
public AzureIOTApplication(string connectionString)
{
//create an eventhubclient for receiving messages from the Azure IOT Hub
eventHubClient = EventHubClient.CreateFromConnectionString(connectionString, "messages/events");
//create a sericeclient, able to send messages to the Azure IOT Hub Devices
serviceClient = ServiceClient.CreateFromConnectionString(connectionString);
}
public async Task OpenAsync()
{
serviceClient = Microsoft.Azure.Devices.ServiceClient.CreateFromConnectionString(serviceConnectionString);
await serviceClient.OpenAsync();
registryManager = Microsoft.Azure.Devices.RegistryManager.CreateFromConnectionString(ownerConnectionString);
await registryManager.OpenAsync();
}
// Please set the following connection strings in app.config for this WebJob to run:
// AzureWebJobsDashboard and AzureWebJobsStorage
static void Main()
{
_host = new JobHost();
var connectionString = ConfigurationManager.ConnectionStrings["IoTHub"].ConnectionString;
_eventHubClient = EventHubClient.CreateFromConnectionString(connectionString, "messages/events");
_serviceClient = ServiceClient.CreateFromConnectionString(connectionString);
Task.WaitAll(_eventHubClient.GetRuntimeInformation().PartitionIds.Select(Listen).ToArray());
_host.RunAndBlock();
}
public IOTHubDeviceExplorer(string iotHubConnenctionString, int devicesCount, string protocolGatewayName)
{
this.iotHubConnectionString = iotHubConnenctionString;
this.maxCountOfDevices = devicesCount;
this.protocolGatewayHostName = protocolGatewayName;
this.registryManager = RegistryManager.CreateFromConnectionString(iotHubConnectionString);
this.serviceClient = ServiceClient.CreateFromConnectionString(iotHubConnectionString);
}
static void Main(string[] args)
{
Console.WriteLine("Send Cloud-to-Device message\n");
serviceClient = ServiceClient.CreateFromConnectionString(connectionString);
Console.WriteLine("Press any key to send a C2D message.");
Console.ReadLine();
SendCloudToDeviceMessageAsync().Wait();
Console.ReadLine();
}
private static void Main(string[] args)
{
Console.WriteLine("Sending Cloud-to-Device messages.");
_serviceClient = ServiceClient.CreateFromConnectionString(_connectionString);
Console.WriteLine("Press ENTER to send a cloud to device message.");
while (true)
{
Console.ReadLine();
SendCloudToDeviceMessage(_deviceId);
}
}
static void Main(string[] args)
{
Console.WriteLine("Send Cloud-to-Device message\n");
serviceClient = ServiceClient.CreateFromConnectionString(connectionString);
ReceiveFeedbackAsync();
string text = "";
do
{
Console.Write("Write a message to send: ");
text = Console.ReadLine();
SendCloudToDeviceMessageAsync(text).Wait();
Console.ReadLine();
} while (text != "1");
}
private async Task RunAsync(CancellationToken cancellationToken)
{
serviceClient = ServiceClient.CreateFromConnectionString(iotHubConnectionString);
eventHubClient = EventHubClient.CreateFromConnectionString(iotHubConnectionString, iotHubD2cEndpoint);
var d2cPartitions = eventHubClient.GetRuntimeInformation().PartitionIds;
foreach (string partition in d2cPartitions)
{
ReceiveMessagesFromDeviceAsync(cancellationToken, partition);
}
while (!cancellationToken.IsCancellationRequested)
{
await Task.Delay(1000);
}
}
static void Main(string[] args)
{
Console.WriteLine("Send Cloud-to-Device message\n");
serviceClient = ServiceClient.CreateFromConnectionString(connectionString);
Console.WriteLine("Press any key to send a C2D message.");
while (true)
{
Console.ReadLine();
string guid = Guid.NewGuid().ToString();
for (int i = 0; i < 3; i++) //Send 3 messages to the device and receive the feedback
{
SendCloudToDeviceMessageAsync(guid).Wait();
ReceiveFeedbackAsync(guid).Wait();
}
Console.WriteLine("Finished sending all messages");
}
}
public static async Task SendMessageToDeviceAsync(MAD.ServiceClient serviceClient, string targetDeviceId, string message)
{
var payload = new MAD.Message(Encoding.UTF8.GetBytes(message));
await serviceClient.SendAsync(targetDeviceId, payload);
}
public EventProcessor()
{
var iotHubConnectionString = CloudConfigurationManager.GetSetting("IoTHubConnectionString");
client = ServiceClient.CreateFromConnectionString(iotHubConnectionString);
}
public void Init(string devId, string cmd)
{
devMsg = new Message(Encoding.ASCII.GetBytes(cmd));
serviceClient = ServiceClient.CreateFromConnectionString(connectionString);
deviceId = devId;
}
public ServiceAppServices(string connectionString)
{
serviceClient = MAD.ServiceClient.CreateFromConnectionString(connectionString);
}
// Azure Function -> Console App [Sender]
public static async Task SendMessageToDeviceAsync(MAD.ServiceClient serviceClient, string targetDeviceId, string message)
{
// Skicka meddelande "message" till Device "targetDeviceId" mha SendAsync
var payload = new MAD.Message(Encoding.UTF8.GetBytes(message));
await serviceClient.SendAsync(targetDeviceId, payload);
}
