I'm looking for a good way to integrate KonaKart with existing (not public available yet) product catalog. There are already category/product/productlist pages in catalog. There is also search and other functionality. Only cart/ordering functionality is missing. So no presentation Layer is required (except ordering phase). Also all orders will be processed automatically directly from database.
I was thinking about button at product page, that will put product in cart (KonKart), and another one, that will show cart and order. Also it will be good if i could show cart total value at the top of all webcatalog pages. So there will be no products/groups in KonKart, but products will be created when they are added to cart. And after order, these products will be deleted from. Is it possible to insert products/cart items from other application using java API?