public async Task Process(IncomingStepContext context, Func <Task> next)
{
var message = context.Load <Message>();
var messageId = message.GetMessageId();
var transactionContext = context.Load <ITransactionContext>();
var messageData = await _msgStorage.Find(messageId) ?? new MessageData()
{
MessageId = messageId
};
TryMountMessageDataOnTransactionContext(messageData, transactionContext);
// invoke the rest of the pipeline (most likely also dispatching the incoming message to the now-ready saga handlers)
await next();
// everything went well - let's save message data
await SaveMessageData(messageData);
}