Func <StreamSubscription, ResolvedEvent, CancellationToken, Task> EventAppeared(IProjection projection)
{
return(async(s, e, ct) =>
{
Console.WriteLine(
$"Handling Projection {projection.GetType().Name} event {e.Event.EventType} id: {e.Event.EventId}");
if (!projection.CanHandle(e.Event.EventType))
{
return;
}
var deserializedEvent = e.Deserialize();
await projection.HandleAsync(e.Event.EventType, deserializedEvent, ct);
await UpdatePositionAsync(projection.GetType(), e.OriginalPosition !.Value, ct);
});
}