public async Task Connect(string host)
{
try
{
var options = new MqttClientOptionsBuilder()
.WithClientId("TestClient_Sub")
.WithTcpServer(host)
.WithCleanSession()
.Build();
var test = await _mqttClient.ConnectAsync(options);
Console.WriteLine("Is Connected : {0} ", _mqttClient.IsConnected);
}
catch (Exception ex)
{
throw ex;
}
}
private async Task <ReconnectionResult> ReconnectIfRequiredAsync()
{
if (_mqttClient.IsConnected)
{
return(ReconnectionResult.StillConnected);
}
try
{
await _mqttClient.ConnectAsync(_options.ClientOptions).ConfigureAwait(false);
return(ReconnectionResult.Reconnected);
}
catch (Exception)
{
return(ReconnectionResult.NotConnected);
}
}
private async static void SendCommandToDevice(string ipAddress, string port, string topic, string command)
{
if (client != null && client.IsConnected)
{
await client.DisconnectAsync();
}
configuration = new MqttConfiguration {
Port = Convert.ToInt32(port)
};
client = await MqttClient.CreateAsync(ipAddress, configuration);
var sessionState = await client.ConnectAsync(new MqttClientCredentials(clientId : "mrpclient"));
await client.SubscribeAsync(topic + "_client", MqttQualityOfService.AtLeastOnce);
client.MessageStream.Subscribe(msg => OnMessageReceived(msg.Topic, System.Text.Encoding.UTF8.GetString(msg.Payload)));
await client.PublishAsync(new MqttApplicationMessage(topic, Encoding.UTF8.GetBytes(command)), MqttQualityOfService.AtLeastOnce);
}
public async Task mqttClientConnectAsync()
{
var options = new MqttClientOptions
{
ClientId = ClientId,
Credentials = new MqttClientCredentials
{
Username = Username,
Password = Password,
},
ChannelOptions = new MqttClientTcpOptions
{
Server = MqttServer,
Port = MqttPort,
}
};
await mqttClient.ConnectAsync(options);
}
public async Task Run()
{
var clientOptions = new MqttClientOptionsBuilder()
.WithClientId("VoiceCommand")
.WithTcpServer(Settings.Default.MqttServer)
.WithCredentials(Settings.Default.MqttUser, Settings.Default.MqttPassword)
.WithCleanSession()
.Build();
try
{
await _client.ConnectAsync(clientOptions).ConfigureAwait(false);
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
/// <summary>
/// Connect the client to the AR. The given options suit the testcases but have to be reviewed for a production environment regarding reconnecting for example.
/// </summary>
/// <param name="mqttClient">-</param>
/// <param name="onboardResponse">-</param>
/// <returns>No dedicated response.</returns>
public static async Task ConnectMqttClient(IMqttClient mqttClient, OnboardResponse onboardResponse)
{
var tlsParameters = new MqttClientOptionsBuilderTlsParameters
{
Certificates = new[] { ReadRootCertificates(), ReadClientCertificate(onboardResponse) },
UseTls = true
};
var options = new MqttClientOptionsBuilder()
.WithClientId(onboardResponse.ConnectionCriteria.ClientId)
.WithTcpServer(onboardResponse.ConnectionCriteria.Host,
int.Parse(onboardResponse.ConnectionCriteria.Port))
.WithTls(tlsParameters)
.WithCommunicationTimeout(TimeSpan.FromSeconds(20))
.Build();
await mqttClient.ConnectAsync(options);
}
public async Task when_disconnect_clients_then_succeeds(int count)
{
List <IMqttClient> clients = new List <IMqttClient>();
List <string> clientIds = new List <string>();
for (int i = 1; i <= count; i++)
{
IMqttClient client = await GetClientAsync();
string clientId = MqttTestHelper.GetClientId();
await client.ConnectAsync(new MqttClientCredentials( clientId ));
clients.Add(client);
clientIds.Add(clientId);
}
int initialConnectedClients = Server.ActiveClients.Where(c => clientIds.Contains(c)).Count();
foreach (IMqttClient client in clients)
{
await client.DisconnectAsync();
}
ManualResetEventSlim disconnectedSignal = new ManualResetEventSlim(initialState: false);
while (!disconnectedSignal.IsSet)
{
if (Server.ActiveClients.Where(c => clientIds.Contains(c)).Count() == 0 && clients.All(c => !c.IsConnected))
{
disconnectedSignal.Set();
}
}
initialConnectedClients.Should().Be(clients.Count);
Server.ActiveClients.Where(c => clientIds.Contains(c)).Should().BeEmpty();
Assert.True(clients.All(c => !c.IsConnected));
Assert.True(clients.All(c => string.IsNullOrEmpty(c.Id)));
foreach (IMqttClient client in clients)
{
client.Dispose();
}
}
async void Start()
{
var factory = new MqttFactory();
mqttClient = factory.CreateMqttClient();
var options = new MqttClientOptionsBuilder()
.WithTcpServer(mqttHost, 1883)
.WithClientId("Unity.client.subscriber") //Guid.NewGuid ().ToString ())
//.WithCredentials ("your_MQTT_username", "your_MQTT_password")
//.WithTls ()
.Build();
mqttClient.Connected += async(s, e) =>
{
Debug.Log("MQTTブローカに接続しました");
await mqttClient.SubscribeAsync(
new TopicFilterBuilder()
.WithTopic ("itoyuNineAxis")
.Build());
Debug.Log("指定したトピックをSubscribeしました");
};
mqttClient.Disconnected += async(s, e) =>
{
if (e.Exception == null)
{
Debug.Log("サーバとの通信を切断しました");
return;
}
Debug.Log("サーバから切断されました。");
};
mqttClient.ApplicationMessageReceived += (s, e) =>
{
var message = System.Text.Encoding.UTF8.GetString(e.ApplicationMessage.Payload);
//Debug.Log ($"メッセージ受信 : {message}");
OnMessageReceived.OnNext(message);
};
await mqttClient.ConnectAsync(options);
}
private static async Task ConnectClient(String address)
{
try
{
IMqttClientOptions mqttClientOptions = new MqttClientOptionsBuilder()
.WithClientId("RealClient")
.WithTcpServer(address, 1883)
.WithCleanSession(false)
.WithKeepAlivePeriod(TimeSpan.FromMilliseconds(-1))
.WithCommunicationTimeout(TimeSpan.FromSeconds(20))
.Build();
await MqttClient.ConnectAsync(mqttClientOptions);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
public void Setup()
{
TopicGenerator.Generate(NumPublishers, NumTopicsPerPublisher, out var topicsByPublisher, out var singleWildcardTopicsByPublisher, out var multiWildcardTopicsByPublisher);
_topics = topicsByPublisher.Values.First();
var serverOptions = new MqttServerOptionsBuilder().WithDefaultEndpoint().Build();
var factory = new MqttFactory();
_mqttServer = factory.CreateMqttServer(serverOptions);
_mqttClient = factory.CreateMqttClient();
_mqttServer.StartAsync().GetAwaiter().GetResult();
var clientOptions = new MqttClientOptionsBuilder()
.WithTcpServer("localhost").Build();
_mqttClient.ConnectAsync(clientOptions).GetAwaiter().GetResult();
}
public async Task when_connecting_client_to_non_existing_server_then_fails()
{
try
{
Server.Dispose();
IMqttClient client = await GetClientAsync();
await client.ConnectAsync(new MqttClientCredentials( MqttTestHelper.GetClientId()));
}
catch (Exception ex)
{
Assert.True(ex is MqttClientException);
Assert.NotNull(ex.InnerException);
//Assert.True( ex.InnerException is MqttException );//Not throwing this with SSL.
//Assert.NotNull( ex.InnerException.InnerException );
//Assert.True( ex.InnerException.InnerException is SocketException );
}
}
public void Connect(string clientName, string channel)
{
if (_mqttClient.IsConnected)
{
return;
}
_clientName = clientName;
_mqttClient = _factory.CreateMqttClient(new CustomMqttNetLogger(_clientName));
_mqttClient.ConnectedHandler = new MqttClientConnectedHandlerDelegate(new Action <MqttClientConnectedEventArgs>(OnConnected));
_mqttClient.DisconnectedHandler = new MqttClientDisconnectedHandlerDelegate(new Action <MqttClientDisconnectedEventArgs>(OnDisconnected));
_mqttClient.ApplicationMessageReceivedHandler = new MqttApplicationMessageReceivedHandlerDelegate(new Action <MqttApplicationMessageReceivedEventArgs>(OnMessageReceived));
IMqttClientOptions options = new MqttClientOptionsBuilder()
.WithTcpServer("127.0.0.1", 1883)
.WithClientId(clientName)
/*.WithWillMessage(new MqttApplicationMessage
* {
* Topic = "will/message/topic",
* QualityOfServiceLevel = MqttQualityOfServiceLevel.AtMostOnce,
* Payload = new byte[] { },
* Retain = true
* })*/
.WithKeepAlivePeriod(new TimeSpan(0, 0, 15))
.WithCommunicationTimeout(new TimeSpan(0, 0, 10))
.WithCleanSession()
.Build();
try
{
Log.InfoFormat("[{0}] - [{1}]: {2}", GetType().Name, _clientName, string.Format("Connecting to broker at {0}:{1}.", "127.0.0.1", "1883"));
_mqttClient.ConnectAsync(options).Wait();
}
catch (Exception e)
{
_mqttClient.ConnectedHandler = null;
_mqttClient.DisconnectedHandler = null;
_mqttClient.ApplicationMessageReceivedHandler = null;
Log.Error("Connection error:", e);
}
}
private async Task <ReconnectionResult> ReconnectIfRequiredAsync()
{
if (_mqttClient.IsConnected)
{
return(ReconnectionResult.StillConnected);
}
try
{
await _mqttClient.ConnectAsync(Options.ClientOptions).ConfigureAwait(false);
return(ReconnectionResult.Reconnected);
}
catch (Exception exception)
{
ConnectingFailed?.Invoke(this, new MqttManagedProcessFailedEventArgs(exception));
return(ReconnectionResult.NotConnected);
}
}
/// <summary>
/// Attempt to connect and subscribe to the MQTT broker.
/// </summary>
/// <param name="entities"></param>
public async Task Connect()
{
if (string.IsNullOrEmpty(SettingsControl.MqttUsername))
{
throw new ArgumentNullException(nameof(SettingsControl.MqttUsername));
}
if (string.IsNullOrEmpty(SettingsControl.MqttPassword))
{
throw new ArgumentNullException(nameof(SettingsControl.MqttPassword));
}
if (string.IsNullOrEmpty(SettingsControl.MqttBrokerHostname))
{
throw new ArgumentNullException(nameof(SettingsControl.MqttBrokerHostname));
}
// Create TCP-based connection options
IMqttClientOptions mqttClientOptions = new MqttClientOptionsBuilder()
.WithTcpServer(SettingsControl.MqttBrokerHostname)
.WithCredentials(SettingsControl.MqttUsername, SettingsControl.MqttPassword)
.WithCleanSession()
.Build();
await WebRequests.WaitForNetworkAvailable();
// If we disconnect for any reason, attempt to reconnect
AttemptReconnectOnDisconnect = true;
while (!MqttClient.IsConnected)
{
try
{
await MqttClient.ConnectAsync(mqttClientOptions);
}
catch (Exception e)
{
Telemetry.TrackException(nameof(Connect), e);
await Task.Delay(TimeSpan.FromSeconds(1));
}
}
}
/// <summary>
/// Attempt to connect and subscribe to the MQTT broker.
/// </summary>
/// <param name="entities"></param>
public void Connect()
{
if (string.IsNullOrEmpty(MqttConfig.BrokerHostname))
{
throw new ArgumentNullException(nameof(MqttConfig.BrokerHostname));
}
if (string.IsNullOrEmpty(MqttConfig.Username))
{
throw new ArgumentNullException(nameof(MqttConfig.Username));
}
if (string.IsNullOrEmpty(MqttConfig.Password))
{
throw new ArgumentNullException(nameof(MqttConfig.Password));
}
// Create TCP-based connection options
IMqttClientOptions mqttClientOptions = new MqttClientOptionsBuilder()
.WithTcpServer(MqttConfig.BrokerHostname)
.WithCredentials(MqttConfig.Username, MqttConfig.Password)
.WithCleanSession()
.Build();
// Fire and forget to ensure windows service is not blocked on initialization
// pending successful connection to the MQTT subscription.
Task task = Task.Factory.StartNew(async() =>
{
await Task.Delay(TimeSpan.FromSeconds(1));
while (!MqttClient.IsConnected)
{
try
{
await MqttClient.ConnectAsync(mqttClientOptions);
}
catch (Exception)
{
await Task.Delay(TimeSpan.FromSeconds(1));
}
}
});
}
/// <summary>
/// Call this method to (re)connect
/// </summary>
public async Task Connect(string username, string password, string brokerUrl = "mqtt.ardich.com", int serverport = 8883)
{
ctSource = new CancellationTokenSource();
// Setup and start a managed MQTT client.
var options = new MqttClientOptionsBuilder()
.WithClientId(ClientId)
.WithTcpServer(brokerUrl, serverport)
.WithCredentials(username, password)
.WithTls()
.Build();
mqttClient = new MqttFactory().CreateMqttClient();
ConnectionStatus = (await mqttClient.ConnectAsync(options, ctSource.Token)).ResultCode;
if (ConnectionStatus == MqttClientConnectResultCode.Success)
{
Listen();
}
}
/// <summary>
/// Establish a connection with a TCP client at the given address and port.
/// This connection is made with *no* KeepAlive timeout.
/// There is a short delay (100 ms) after the connection.
/// </summary>
/// <param name="client"></param>
/// <param name="serverAddress"></param>
/// <param name="port"></param>
/// <returns></returns>
public static async Task ConnectClient(IMqttClient client, string serverAddress, int port)
{
try
{
var connectOptions = new MqttClientOptionsBuilder()
.WithTcpServer(serverAddress, port)
.WithNoKeepAlive()
.Build();
CancellationToken cancellationToken;
await client.ConnectAsync(connectOptions, cancellationToken);
await Task.Delay(100);
}
catch (Exception ex)
{
throw new ApplicationException($"Start Client: Server={serverAddress}:{port} Err={ex.Message}");
}
}
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}");
}
public async Task Connect()
{
var certificate = new X509Certificate("C:\\Users\\Andre\\Desktop\\ESAMI\\Broker_Anto\\Resource\\certificate.pfx", "Guido2018", X509KeyStorageFlags.Exportable);
//var certificate = new X509Certificate("C:\\Users\\Andre\\Desktop\\ESAMI\\Broker_Anto\\Resource\\esame.pfx", "Guido2018", X509KeyStorageFlags.Exportable); ///idilio
var caRoot = X509Certificate2.CreateFromSignedFile("C:\\Users\\Andre\\Desktop\\ESAMI\\Broker_Anto\\Resource\\CAroot.crt");
MqttClientOptionsBuilder optionsBuilder = new MqttClientOptionsBuilder();
var fact = new MqttFactory();
client = fact.CreateMqttClient();
client.ApplicationMessageReceived += Client_ApplicationMessageReceived;
client.Connected += Client_Connected;
optionsBuilder
.WithClientId("pc-broker")
.WithTcpServer(IoTEndPoint, 8883)
.WithTls(true, true, true, certificate.Export(X509ContentType.Pfx), caRoot.Export(X509ContentType.Cert))
.WithCleanSession()
.WithProtocolVersion(MQTTnet.Serializer.MqttProtocolVersion.V311)
.WithKeepAlivePeriod(new TimeSpan(0, 0, 5));
try
{
await client.ConnectAsync(optionsBuilder.Build());
}
catch (Exception e)
{
w.Dispatcher.Invoke(v, "impossibile connect " + e.Message.ToString());
}
try
{
await client.SubscribeAsync("aws/misure");
}
catch (Exception e)
{
w.Dispatcher.Invoke(v, "impossibile subscribe " + e.Message.ToString());
}
while (!client.IsConnected)
{
}
}
/// <summary>
/// MQTT Brokerへ接続
/// </summary>
/// <returns></returns>
public async Task Connect()
{
if (string.IsNullOrEmpty(_mqttConfig.BrokerHostname))
{
throw new ArgumentNullException(nameof(MqttConfig.BrokerHostname));
}
if (_mqttConfig.BrokerHostPort == 0)
{
throw new ArgumentNullException(nameof(MqttConfig.BrokerHostPort));
}
if (string.IsNullOrEmpty(_mqttConfig.AccountId))
{
throw new ArgumentNullException(nameof(MqttConfig.AccountId));
}
var mqttClientOptions = new MqttClientOptionsBuilder()
.WithTcpServer(_mqttConfig.BrokerHostname, _mqttConfig.BrokerHostPort)
.WithCredentials(_mqttConfig.AccountId, _mqttConfig.AccountPassword)
.WithTls()
.WithCleanSession()
.Build();
var retry = 0;
while (!_mqttClient.IsConnected && retry < 10)
{
try
{
await _mqttClient.ConnectAsync(mqttClientOptions);
_logger.LogInformation("Connected.");
}
catch (Exception e)
{
_logger.LogWarning($"接続失敗 {retry + 1}回目:{e.Message}");
await Task.Delay(TimeSpan.FromSeconds(1));
}
retry++;
}
}
private async void Button_Connect_Click(object sender, RoutedEventArgs e)
{
if (mqttClient.IsConnected)
{
await mqttClient.DisconnectAsync();
return;
}
if (InputServerName.Text.Trim().Length == 0)
{
MessageBox.Show("服务器地址不能为空!", "ERROR");
return;
}
var portText = InputServerPort.Text;
var port = 1883;
if (portText.Length > 0)
{
port = int.Parse(portText);
}
var willMessage = new MqttApplicationMessage();
willMessage.Topic = "tamefire/tf5156/offline/TF0001";
willMessage.Payload = new byte[] { 0x01 };
// Create TCP based options using the builder.
var options = new MqttClientOptionsBuilder()
.WithClientId("tf5156" + System.DateTime.Now)
.WithTcpServer(InputServerName.Text)
.WithCredentials(InputUsername.Text, InputPassword.Text)
.WithCleanSession()
.WithWillMessage(willMessage)
.Build();
PrintLog("开始连接:" + InputServerName.Text);
await mqttClient.ConnectAsync(options);
PrintLog("成功连接到:" + InputServerName.Text);
}
public void Setup()
{
var factory = new MqttFactory();
_mqttServer = factory.CreateMqttServer();
_mqttClient = factory.CreateMqttClient();
var serverOptions = new MqttServerOptionsBuilder().Build();
_mqttServer.StartAsync(serverOptions).GetAwaiter().GetResult();
var clientOptions = new MqttClientOptionsBuilder()
.WithTcpServer("localhost").Build();
_mqttClient.ConnectAsync(clientOptions).GetAwaiter().GetResult();
_message = new MqttApplicationMessageBuilder()
.WithTopic("A")
.Build();
}
public static async void init()
{
var factory = new MqttFactory();
client = factory.CreateMqttClient();
var options = new MqttClientOptionsBuilder()
.WithTcpServer("localhost", 1883);
await client.ConnectAsync(options.Build());
client.UseConnectedHandler(e =>
{
Console.WriteLine("Producer is connected to server");
});
client.UseDisconnectedHandler(e =>
{
Console.WriteLine("Producer has been disconnected from the server");
});
}
public async void ReplaceMqttClient(IMqttClientOptions options)
{
this._logger.LogInformation($"Replacing Mqtt client with new config");
await _mqttClient.DisconnectAsync();
try
{
await _mqttClient.ConnectAsync(options);
}
catch (MqttConnectingFailedException ex)
{
this._mqttClientMessage = ex.ResultCode.ToString();
Log.Logger.Error("Could not connect to broker: " + ex.ResultCode.ToString());
}
catch (MqttCommunicationException ex)
{
this._mqttClientMessage = ex.ToString();
Log.Logger.Error("Could not connect to broker: " + ex.Message);
}
}
public Task ConnectAsync()
{
lock (synclock)
{
if (_client != null)
{
return(Task.CompletedTask);
}
_client = new MQTTnet.MqttFactory().CreateMqttClient();
_client.Connected += OnConnected;
_client.Disconnected += OnDisconnected;
_client.ApplicationMessageReceived += OnMessageReceieved;
var connected = new TaskCompletionSource <object>();
_client.ConnectAsync(_options)
.ContinueWith(task => DispatchTask <object>(task, connected));
return(connected.Task);
}
}
public async Task ConnectBrokerAsync()
{
// Create a new MQTT client.
factory = new MqttFactory();
mqttClient = factory.CreateMqttClient();
// Create TCP based options using the builder.
options = new MqttClientOptionsBuilder()
.WithTcpServer(_config.BROKER_URL, _config.BROKER_PORT)
.WithCredentials(_config.BROKER_USERNAME, _config.BROKER_PASSWORD)
.WithCleanSession()
.Build();
mqttClient.UseConnectedHandler(MqttConnectedHandlerAsync);
mqttClient.UseDisconnectedHandler(MqttDisconnectedHandler);
mqttClient.UseApplicationMessageReceivedHandler(MqttOnMessagesReceived);
await mqttClient.ConnectAsync(options, CancellationToken.None); // Since 3.0.5 with CancellationToken
}
/// <summary>
/// 连接服务器
/// </summary>
/// <returns></returns>
private async Task ConnectMqttServerAsync()
{
try
{
//实例化 创建客户端对象
mqttClient = new MqttFactory().CreateMqttClient();
mqttClient.ApplicationMessageReceived += MqttClient_ApplicationMessageReceived;
mqttClient.Connected += MqttClient_Connected;
mqttClient.Disconnected += MqttClient_Disconnected;
await mqttClient.ConnectAsync(option());
}
catch (Exception ex)
{
Invoke((new Action(() =>
{
txtReceiveMessage.AppendText($"连接到MQTT服务器失败！" + Environment.NewLine + ex.Message + Environment.NewLine);
})));
}
}
/// <summary>
/// Start the input - consuming and processing messages from MQTT and send to input stream on runtime
/// </summary>
public void Start()
{
Task.Run(async() =>
{
var channel = new Channel(_configuration.RuntimeEndpoint, ChannelCredentials.Insecure);
var streamClient = new InputStreamClient(channel);
var inputStream = streamClient.Open();
_mqttClient.UseConnectedHandler(async e =>
{
_logger.Information($"Connected to MQTT broker");
var wildcard = _configuration.InputTopicPrefix.Wildcard;
_logger.Information($"Subscribe to '{wildcard}'");
await _mqttClient.SubscribeAsync(new TopicFilterBuilder().WithTopic(wildcard).Build());
});
_mqttClient.UseApplicationMessageReceivedHandler(async e => await ProcessMessage(e, inputStream));
await _mqttClient.ConnectAsync(_mqttClientOptions, CancellationToken.None);
});
}
public async Task SendMessage(string message, string topic)
{
var options = new MqttClientOptionsBuilder()
.WithTcpServer(_settings.MqttClientSettings.Server, _settings.MqttClientSettings.Port)
.WithCredentials(_settings.MqttClientSettings.User, _settings.MqttClientSettings.Password)
.Build();
CancellationToken cancellationToken;
await _mqttClient.ConnectAsync(options, cancellationToken);
var payload = new MqttApplicationMessageBuilder()
.WithTopic(topic)
.WithPayload(message)
.WithExactlyOnceQoS()
.Build();
await _mqttClient.PublishAsync(payload, cancellationToken);
await _mqttClient.DisconnectAsync();
}
public async Task PublishAsync(Presence presence)
{
try
{
if (!_mqttClient.IsConnected)
{
await _mqttClient.ConnectAsync(_mqttClientOptions, CancellationToken.None);
}
string topic = _options.Topic;
await _mqttClient.PublishAsync(topic + "/activity", presence.Activity, true);
await _mqttClient.PublishAsync(topic + "/availability", presence.Availability, true);
}
catch (Exception)
{
//TODO: add logging
}
}
