public async Task Subscribe(CancellationToken cancellationToken)
{
var mqttFactory = new MqttFactory();
var clientOptionsBuilder = new MqttClientOptionsBuilder()
.WithClientId(System.Reflection.Assembly.GetEntryAssembly().FullName)
.WithTcpServer(m_brokerHostName)
.WithCredentials(m_applicationId, m_applicationAccessKey)
.Build();
m_mqttClientSubscriber = mqttFactory.CreateMqttClient();
m_mqttClientSubscriber.ConnectedHandler = new MqttClientConnectedHandlerDelegate(OnSubscriberConnected);
m_mqttClientSubscriber.DisconnectedHandler = new MqttClientDisconnectedHandlerDelegate(OnSubscriberDisconnected);
m_mqttClientSubscriber.ApplicationMessageReceivedHandler = new MqttApplicationMessageReceivedHandlerDelegate(OnSubscriberMessageReceived);
await m_mqttClientSubscriber.ConnectAsync(clientOptionsBuilder, cancellationToken);
await m_consoleLogger.AppendMessageAsync($"ConnectAsync IsConnected: {m_mqttClientSubscriber.IsConnected}");
}
private async Task OnSubscriberMessageReceived(MqttApplicationMessageReceivedEventArgs arg)
{
var item = $"Timestamp: {DateTime.Now:O} | Topic: {arg.ApplicationMessage.Topic} | Payload: {arg.ApplicationMessage.ConvertPayloadToString()} | QoS: {arg.ApplicationMessage.QualityOfServiceLevel}";
var loggingStart = DateTime.Now;
var consoleTask = m_consoleLogger.AppendMessageAsync(item);
var fileTask = m_logger?.AppendMessageAsync(item);
var pastebinTask = m_pasteBinLogger?.AppendMessageAsync(arg.ApplicationMessage.ConvertPayloadToString());
await Task.WhenAll(consoleTask, fileTask, pastebinTask);
await m_consoleLogger.AppendMessageAsync($"Logging completed in {(DateTime.Now - loggingStart).ToString()}");
}