private async Task ReceiveHubMessagesAsync()
{
using (Message receivedMessage = await DeviceClient.ReceiveAsync(TimeSpan.FromSeconds(30)).ConfigureAwait(false))
{
if (receivedMessage == null)
{
Console.WriteLine("\t{0}> Timed out", DateTime.Now.ToLocalTime());
return;
}
var message = new MqttApplicationMessageBuilder()
.WithPayload(receivedMessage.GetBytes());
string payload = Encoding.ASCII.GetString(receivedMessage.GetBytes());
Console.WriteLine("\t{0}> Received message: {1}", DateTime.Now.ToLocalTime(), payload);
if (receivedMessage.Properties.ContainsKey("topic"))
{
message.WithTopic(receivedMessage.Properties["topic"]);
}
var keyExclude = new string[] { "topic", "clientId" };
foreach (var prop in receivedMessage.Properties.Where(k => !keyExclude.Contains(k.Key)))
{
message.WithUserProperty(prop.Key, prop.Value);
}
await LocalClient.PublishAsync(message.Build(), CancellationToken.None);
await DeviceClient.CompleteAsync(receivedMessage).ConfigureAwait(false);
}
}
