public static void SaveEvent <T>(this IEventStoreClient eventStoreClient, string streamName, int expectedVersion, Guid eventId, T data)
{
eventStoreClient.SaveEvent(streamName,
expectedVersion,
eventId,
data.GetType().Name,
JsonConvert.SerializeObject(data));
}
public async Task <IHttpActionResult> CreateDeal(CreateDealCommand command)
{
//De-serialize - already done
//Validate schema with DataAnnotations/XSD/JSONSchema
//Apply command to domain
//return response code;
var streamName = StreamNames.DealStreamName(command.DealId);
var eventId = Guid.NewGuid(); //Is this correct? Or should it be cmd.DealId? Or something else?
var payload = JsonConvert.SerializeObject(command);
await _eventStoreClient.SaveEvent(streamName, ExpectedVersion.NoStream, eventId, "DealCreated", payload);
return(Ok());
}
private async Task ProcessNext()
{
//TODO: Allow cancellation
var cmd = await _messageBusClient.Dequeue <CreateDealCommand>();
//Run slow just for fun
await Task.Delay(TimeSpan.FromSeconds(2));
//Create the DealCreatedEvent in the new Deal-GUID stream.
var streamName = StreamNames.DealStreamName(cmd.DealId);
var eventId = Guid.NewGuid(); //Is this correct? Or should it be cmd.DealId? Or something else?
var payload = cmd.ToJson();
await _eventStoreClient.SaveEvent(streamName, ExpectedVersion.NoStream, eventId, "DealCreated", payload);
//We will use Projections to merge them together.
}