NewCommandHandler creates a new CommandHandler which supports the request-reply pattern.

NewCommandHandlerWithResult creates a new CommandHandler which supports the request-reply pattern with a result.

NewPubSubBackend creates a new PubSubBackend.

SendWithReplies sends command to the command bus and receives a replies of the command handler.

SendWithReply sends command to the command bus and receives a replies of the command handler.

CommandHandlerError is returned when the command handler returns an error.

NoResult is a result type for commands that don't have result.

PubSubBackend is a Backend that uses Pub/Sub to transport commands and replies.

ReplyTimeoutError is returned when the reply timeout is exceeded.

OperationID is a unique identifier of a command.