CCNA, CCNP, MCSA, CCNA Final Exam, All Answer Test Module With 100/100

I'm thinking of using Shopify to manage my shop. I need to add the products to the website with the API. http://api.shopify.com/ I can get the products and stocks with this API call : http://api.shopify.com/product.html#index But, then I would like to 'Add to basket' - I cannot see from the API docs how to do this. Once added to the basket - I'd like to get the basket contents so I can display something like... "2 items : £130 - checkout" I don't need a detailed answer - just point me in the right direction - thanks.