public bool sendMqttMessage(string topic, string payload)
{
bool retVal = false;
var factory = new MqttFactory();
var mqttClient = factory.CreateMqttClient();
var options = new MQTTnet.Client.MqttClientOptionsBuilder()
.WithClientId(System.Guid.NewGuid().ToString())
.WithCommunicationTimeout(TimeSpan.FromSeconds(50))
//.WithCredentials("sm_user", "hemligt")
.WithTcpServer("192.168.229.101")
.Build();
mqttClient.ConnectAsync(options).Wait();
var message = new MQTTnet.MqttApplicationMessageBuilder()
.WithTopic(topic)
.WithPayload(payload)
.WithAtLeastOnceQoS()
.Build();
List <MQTTnet.MqttApplicationMessage> mess = new List <MQTTnet.MqttApplicationMessage>();
mess.Add(message);
mqttClient.PublishAsync(mess);
mqttClient.DisconnectAsync();
return(retVal);
}
public void PublishMessage(string datastream, string payload)
{
try
{
//PublishAsync("GOST/Datastreams(" + datastream + ")/Observations", payload);
var message = new MQTTnet.MqttApplicationMessageBuilder()
.WithTopic("GOST/Datastreams(" + datastream + ")/Observations")
.WithPayload(payload)
.WithAtMostOnceQoS()
.WithRetainFlag(false)
.Build();
List <MQTTnet.MqttApplicationMessage> mqttmess = new List <MQTTnet.MqttApplicationMessage>();
mqttmess.Add(message);
mlSend.PublishAsync(mqttmess).Wait();
}
catch (Exception e)
{
System.Console.WriteLine("Exception:" + e.Message + " " + e.Source + " " + e.StackTrace);
}
}
