public Task <ProductAggregate?> Handle(ESauceEvent evt, AddProductsEvent payload, ProductAggregate?prevState)
{
var agg = prevState ?? new ProductAggregate();
agg.Quantity += payload.Amount;
return(Task.FromResult(agg) !);
}
private async Task <TAggregate?> Apply(ESauceEvent evt, TAggregate?prevState)
{
var handlerType = handlerMappingProvider.FindHandlerForEvent(evt.PayloadType);
var handler = serviceProvider.GetService(handlerType);
if (handler == null)
{
throw new Exception($"No IEventProcessor found to process event of type {evt.PayloadType}");
}
const string methodName = nameof(IEventHandler <object, AggregateBase> .Handle);
var processMethod = handler.GetType().GetMethod(methodName);
var methodParameters = new[] { evt, evt.Payload !, prevState ! };
public async Task AddEvent <T>(Guid aggregateId, T payload)
{
var evt = ESauceEvent.Create(aggregateId, payload);
await eventRepository.AddEvent(evt);
}