add giftcards

pkg/cart/cart-mutation-helper.go

@@ -72,6 +72,12 @@ func NewCartMultationRegistry() actor.MutationRegistry {
 		actor.NewMutation(CreateCheckoutOrder, func() *messages.CreateCheckoutOrder {
 			return &messages.CreateCheckoutOrder{}
 		}),
+		actor.NewMutation(AddGiftcard, func() *messages.AddGiftcard {
+			return &messages.AddGiftcard{}
+		}),
+		actor.NewMutation(RemoveGiftcard, func() *messages.RemoveGiftcard {
+			return &messages.RemoveGiftcard{}
+		}),
 	)
 	return reg