public Task <string> Subscribe(string serviceName, string topic, CancellationToken token)
{
InMemoryTopic inMemoryTopic = _topics.GetOrAdd(topic, t => new InMemoryTopic(t));
string id = inMemoryTopic.Subscribe(serviceName);
// This shouldn't fail since each service should only subscribe once to a topic
if (_topicBySubscriptionId.TryAdd(id, topic) == false)
{
throw new InvalidOperationException($"Subscription for service {serviceName} already exists for topic {topic}");
}
return(Task.FromResult(id));
}
public Task SendMessage(string topic, byte[] message, CancellationToken token)
{
InMemoryTopic inMemoryTopic = _topics.GetOrAdd(topic, t => new InMemoryTopic(t));
return(inMemoryTopic.Send(message, token));
}
