How does one add an SID when doing the product search? Or do I just add it on to the buy-url? Also, is there any way to get the buy-url field encrypted as if I built a widget using the CJ.com site directly?
Not sure what you mean by the SID. Do you mean CID? Here are the parameters you can add to the url: http://help.cj.com/en/web_services/web_services.htm (except authorisation, that has to be supplied as an http header). I am not sure about encrypting just the buy-url, but why would you do that? The user should not see the REST url anyway..?