public async Task SubscribeAsync(string topic, QualityOfServiceLevelType qos, Action <string, string, byte[]> action)
{
Dictionary <string, QualityOfServiceLevelType> dict = new Dictionary <string, QualityOfServiceLevelType>();
dict.Add(topic, qos);
dispatcher.Register(topic, action);
SubscribeMessage msg = new SubscribeMessage(session.NewId(), dict);
await channel.SendAsync(msg.Encode());
}
/// <summary>
/// Register a topic that already has a subscription.
/// </summary>
/// <param name="topic"></param>
/// <param name="action"></param>
public void RegisterTopic(string topic, Action <string, string, byte[]> action)
{
Uri uri = new Uri(topic.ToLowerInvariant());
dispatcher.Register(uri.ToString(), action);
}