I'm implementing the Google Checkout service into my web service using the XML api. I have the cart request and all of that setup, and am using the Merchant Calculations api for shipping (My service does shipping calculations)
I'm having difficulties figuring out how to access the response that is sent to my server with the buyer's address / other personal data for the order and determining their shipping request.
Is being sent in the header? as a POSTS value? GET? How do I access it.
I'm developing using PHP