private static async Task TakeSnapshot(IEventStoreConnection connection, IAggregateRoot aggregate)
{
var snapshot = aggregate.TakeSnapshot();
var encodedEvent = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(snapshot));
var eventData = new EventData(Guid.NewGuid(), snapshot.GetType().Name, true, encodedEvent, null);
await connection.AppendToStreamAsync(StreamNameGenerator.GenerateForSnapshot(aggregate), ExpectedVersion.Any, eventData);
}
private async Task SaveAggregatesEvents()
{
foreach (var aggregate in _trackedAggregates)
{
using (var transaction = await _context.StartTransactionAsync(StreamNameGenerator.Generate(aggregate), aggregate.CurrentVersion))
{
await transaction.WriteAsync(aggregate.GetUnCommittedChanges().ToEventData());
await transaction.CommitAsync();
await _snapshotter.TakeSnapshotIfNeed(aggregate);
}
}
}