public async Task PublishLeafDeviceMessage(LocalDeviceMqttPublicationCategory category, string topicName, string payload, IDictionary <string, string> propertyBag, CancellationToken stopToken)
{
var propertyUrlString = "";
if (propertyBag != null)
{
propertyUrlString = UrlEncodedDictionarySerializer.Serialize(propertyBag);
}
if (category == LocalDeviceMqttPublicationCategory.Twin)
{
// if topic name is null send to all topics
foreach (var t in device.LocalDeviceMqttPublications.Twin)
{
var t1 = t.Topic.Trim('/') + "/" + propertyUrlString; // Ensure topic ends with a forward slash /
if (topicName == null)
{
// send to all topics
logger.LogInformation($"SendMessage: Topic {t1} with Payload {payload}");
var msg = new MqttApplicationMessageBuilder()
.WithTopic(t1)
.WithPayload(payload)
.WithQualityOfServiceLevel(MqttQualityOfServiceLevel.AtLeastOnce) // qos = 1
.Build();
await downstreamClient.PublishAsync(msg, stopToken);
}
else if (topicName == t.Name)
{
logger.LogInformation($"SendMessage: Topic {t1} with Payload {payload}");
var msg = new MqttApplicationMessageBuilder()
.WithTopic(t1)
.WithPayload(payload)
.WithQualityOfServiceLevel(MqttQualityOfServiceLevel.AtLeastOnce) // qos = 1
.Build();
await downstreamClient.PublishAsync(msg, stopToken);
}
}
}
}
public PublishToLocalDeviceTopicResult(LocalDeviceMqttPublicationCategory category, string payload)
{
Category = category;
Payload = payload;
}