static CoapRequest CreateRequest(PythonDictionary parameters)
{
var method = Convert.ToString(parameters.get("method", "get"));
var path = Convert.ToString(parameters.get("path", string.Empty));
var payload = parameters.get("payload", Array.Empty <byte>());
return(new CoapRequestBuilder()
.WithMethod((CoapRequestMethod)Enum.Parse(typeof(CoapRequestMethod), method, true))
.WithPath(path)
.WithPayload(PythonConvert.ToPayload(payload))
.Build());
}
public void publish(PythonDictionary parameters)
{
if (parameters is null)
{
throw new ArgumentNullException(nameof(parameters));
}
var topic = Convert.ToString(parameters.get("topic"));
var payload = parameters.get("payload", Array.Empty <byte>());
var qos = Convert.ToInt32(parameters.get("qos", 0));
var retain = Convert.ToBoolean(parameters.get("retain", false));
_mqttService.Publish(new MqttPublishParameters
{
Topic = topic,
Payload = PythonConvert.ToPayload(payload),
QualityOfServiceLevel = (MqttQualityOfServiceLevel)qos,
Retain = retain
});
}
public static PythonDictionary publish_external(PythonDictionary parameters)
{
if (parameters is null)
{
throw new ArgumentNullException(nameof(parameters));
}
var server = Convert.ToString(parameters.get("server"));
var port = Convert.ToInt32(parameters.get("port", 1883));
var username = Convert.ToString(parameters.get("username"));
var password = Convert.ToString(parameters.get("password"));
var clientId = Convert.ToString(parameters.get("client_id", Guid.NewGuid().ToString("N")));
var topic = Convert.ToString(parameters.get("topic"));
var qos = Convert.ToInt32(parameters.get("qos", 0));
var retain = Convert.ToBoolean(parameters.get("retain", false));
var tls = Convert.ToBoolean(parameters.get("tls", false));
var timeout = Convert.ToInt32(parameters.get("timeout", 5000));
var payload = parameters.get("payload", null);
var mqttClient = new MqttFactory().CreateMqttClient();
try
{
var options = new MqttClientOptionsBuilder().WithTcpServer(server, port).WithCredentials(username, password).WithClientId(clientId)
.WithTimeout(TimeSpan.FromMilliseconds(timeout)).WithTls(new MqttClientOptionsBuilderTlsParameters
{
UseTls = tls
}).Build();
mqttClient.ConnectAsync(options).GetAwaiter().GetResult();
var message = new MqttApplicationMessageBuilder().WithTopic(topic).WithPayload(PythonConvert.ToPayload(payload))
.WithQualityOfServiceLevel((MqttQualityOfServiceLevel)qos).WithRetainFlag(retain).Build();
mqttClient.PublishAsync(message).GetAwaiter().GetResult();
return(new PythonDictionary
{
["type"] = "success"
});
}
catch (MqttConnectingFailedException)
{
return(new PythonDictionary
{
["type"] = "exception.connecting_failed"
});
}
catch (Exception exception)
{
return(PythonConvert.ToPythonDictionary(new ExceptionPythonModel(exception).ToDictionary()));
}
finally
{
mqttClient?.DisconnectAsync().GetAwaiter().GetResult();
mqttClient?.Dispose();
}
}
