public async Task <ServiceReply> Unsubscribe(string topic)
{
// Repeated fields cannot be instantiated in SerivceRequest creation; adding topic to unsubscribeTopics which is later sent to server with clientID
RepeatedField <string> unsubscribeTopics = new RepeatedField <string>();
unsubscribeTopics.Add(topic);
Debug.Log("Unsubscribe from topic: " + topic + " (backend) + unsubscribeRepeatedField: " + unsubscribeTopics.Count);
ServiceRequest topicUnsubscription = new ServiceRequest
{
Topic = DEFAULT_TOPICS.SERVICES.TOPIC_SUBSCRIPTION,
TopicSubscription = new TopicSubscription
{
ClientId = clientSpecification.Id,
UnsubscribeTopics = { unsubscribeTopics }
}
};
var task = CallService(topicUnsubscription);
ServiceReply subReply = await task;
if (subReply.Error != null)
{
Debug.LogError("subReply Error! Error msg: " + subReply.Error.ToString());
return(null);
}
// removing callback function from dictionary
netmqTopicDataClient.RemoveTopicDataCallback(topic);
return(subReply);
}
public async Task <bool> UnsubscribeTopic(string topic, Action <TopicDataRecord> callback)
{
if (callback == null)
{
Debug.LogError("UnsubscribeTopic() - callback is NULL!");
return(false);
}
// removing callback function for this topic from dictionary
netmqTopicDataClient.RemoveTopicDataCallback(topic, callback);
// check if there are any callbacks left for this topic, if not, unsubscribe from topic
if (!this.netmqTopicDataClient.HasTopicCallbacks(topic))
{
return(await UnsubscribeTopic(new List <string>() { topic }));
}
return(true);
}
