private async Task EventAppeared(StreamSubscription subscription, ResolvedEvent resolvedEvent, CancellationToken cancellationToken)
{
_logger.LogInformation("{eventType}@{preparePosition}", resolvedEvent.Event.EventType, resolvedEvent.Event.Position.PreparePosition);
var e = EventSerializer.Deserialize(resolvedEvent);
await ExecuteProjectionHandlers(e);
}
private async Task EventAppeared(StreamSubscription subscription, ResolvedEvent resolvedEvent, CancellationToken cancellationToken)
{
_logger.LogInformation("{eventType}@{preparePosition}", resolvedEvent.Event.EventType, resolvedEvent.Event.Position.PreparePosition);
var e = EventSerializer.Deserialize(resolvedEvent);
foreach (var projection in _projections)
{
if (projection.CanHandle(e.GetType()))
{
await projection.Handle(e);
}
}
}
public async Task AppendToStream(string streamName, long expectedVersion, IEnumerable <Event> events, string correlationId)
{
var eventData = events.Select(e =>
{
var metadata = new Dictionary <string, string>
{
{ "$correlationId", correlationId }
};
var eventBytes = Encoding.UTF8.GetBytes(EventSerializer.Serialize(e));
var metadataBytes = Encoding.UTF8.GetBytes(EventSerializer.SerializeMetadata(metadata));
return(new EventData(Uuid.NewUuid(), e.GetType().Name, eventBytes, metadataBytes));
});
var expectedRevision = StreamRevision.FromInt64(expectedVersion);
await _client.AppendToStreamAsync(streamName, expectedRevision, eventData);
}