async Task CreateShoppingCartCommand()
{
var repository = AppEngine.GetRepository();
var cart = await repository.GetById <Domain.ShoppingCart>("cart_1");
cart.Create("sample shopping cart");
cart.AddItem("apples", 10);
await repository.Save(cart, "demo_setup", h => { h.Add("created-at", DateTime.UtcNow); });
// restart (to check deserialization)
repository = AppEngine.GetRepository();
cart = await repository.GetById <Domain.ShoppingCart>("cart_1");
cart.AddItem("oranges", 5);
await repository.Save(cart, "oranges");
}
