public void ProductAvailabilityChanged(ProductAvailabilityChangedEvent productAvailabilityChanged)
{
IBasicProperties props = _channel.CreateBasicProperties();
props.Type = nameof(ProductAvailabilityChangedEvent);
var body = MessageSerializationHelper.SerializeObjectToBin(productAvailabilityChanged);
_channel.BasicPublish(exchange: string.Empty,
routingKey: ApplicationEvents.BasketQueue,
basicProperties: props,
body: body);
}
private void HandleProductAvailabilityChangedEvent(ProductAvailabilityChangedEvent e)
{
using (var scope = _serviceScopeFactory.CreateScope())
{
IBasketService basketService = scope.ServiceProvider.GetRequiredService <IBasketService>();
var keys = basketService.GetItems();
foreach (var key in keys)
{
var basket = basketService.GetBasket(int.Parse(key));
if (basket.Result.restaurantId == e.restaurantId && basket.Result.basketItems.Any(ba => ba.menuItemId == e.itemId))
{
basketService.UpdateItem(int.Parse(key), e.itemId, e.available);
}
}
}
}
public async Task DeleteMenuItem(int menuItemId)
{
var menuItemToDel = restaurantsDbContext.RestaurantsMenu.Single(rm => rm.Id == menuItemId);
restaurantsDbContext.RestaurantsMenu.Remove(menuItemToDel);
await restaurantsDbContext.SaveChangesAsync();
var productAvailabilityChanged = new ProductAvailabilityChangedEvent
{
itemId = menuItemId,
available = false,
restaurantId = menuItemToDel.IdRestaurant
};
restaurantEventManager.ProductAvailabilityChanged(productAvailabilityChanged);
}
public void ProductAvailabilityChanged(ProductAvailabilityChangedEvent productAvailabilityChanged)
{
using (var connection = cFactory.CreateConnection())
using (var channel = connection.CreateModel())
{
IBasicProperties props = channel.CreateBasicProperties();
props.Type = nameof(ProductAvailabilityChangedEvent);
var body = MessageSerializationHelper.SerializeObjectToBin(productAvailabilityChanged);
channel.BasicPublish(exchange: string.Empty,
routingKey: ApplicationEvents.BasketQueue,
basicProperties: props,
body: body);
}
}
public Task <AnotherProjection> ProjectEvent(AnotherProjection prevState, ProductAvailabilityChangedEvent @event)
{
prevState.Available = @event.Available;
return(Task.FromResult(prevState));
}
private void Apply(ProductAvailabilityChangedEvent @event)
{
_available = @event.Available;
}