Callback interface for send operation notifications.
public interface ISendCallback : ICallback
Deprecated: One-way messaging is deprecated in favor of request-response messaging. See SendRequestAsync<TRequest, TResponse>(String, TRequest). This interface will be removed in a future release.
Called to indicate that the sent message has been received by the target session - the receiving session must be connected and have a stream that matches the message path. If the session does not fulfil these requirements, OnDiscard() will be called instead and an error will be dispatched to the session error handler.