public Task <IDomainEvent <IDomainEventData> > Store(ICreateEvent <IDomainEventData> newEvent)
{
var eventData = newEvent.Data;
var eventVersion = _events.Where(x => x.AggregateKey == eventData.GetAggregateKey()).Select(x => (ulong?)x.Version).Max(x => x) ?? 0;
Instant created = _clock.GetCurrentInstant();
var @event = _eventFactory.CreateEvent(eventVersion, created, eventData);
_events.Add(@event);
_sender.SendEvent(@event);
var result = _eventFactory.CreateEvent(eventVersion, created, eventData);
return(Task.FromResult(result));
}
public async Task <IDomainEvent <IDomainEventData> > Store(ICreateEvent <IDomainEventData> newEvent)
{
var eventData = newEvent.Data;
var dataJson = _eventFactory.SerializeToData(eventData);
var data = Encoding.UTF8.GetBytes(dataJson);
var metadata = Encoding.UTF8.GetBytes("{}");
var eventId = Guid.NewGuid();
var eventName = _eventFactory.EventName(eventData);
var evt = new EventData(Uuid.FromGuid(eventId), eventName, data, metadata);
var eventStream = eventData.GetAggregateKey();
IWriteResult result;
if (newEvent.IsNewAggregate)
{
result = await _client.AppendToStreamAsync(eventStream, StreamState.NoStream, new List <EventData>() { evt });
}
else if (newEvent.IsVersioned)
{
result = await _client.AppendToStreamAsync(eventStream, new StreamRevision(newEvent.Version), new List <EventData>() { evt });
}
else
{
result = await _client.AppendToStreamAsync(eventStream, StreamState.StreamExists, new List <EventData>() { evt });
}
_logger.LogDebug("Appended event {position}|{type}.", result.LogPosition, evt.Type);
return(_eventFactory.CreateEvent(result.NextExpectedStreamRevision.ToUInt64(), SystemClock.Instance.GetCurrentInstant(), eventData));
}