Paypal Express Checkout shipping calculation with cURL

Question

I'm attempting to implement a shopping cart on my website that is hosted through third-party hosting so I don't have the APIs or other requirements installed to be able to use PHP, so I am using PHP to execute cURL calls instead.

I need to calculate shipping costs for my items, but I'm not sure how to make that happen with the setup I have. I know PayPal has a shipping calculator, is it not possible to use that? If not, how can I set up shipping costs without having access to the APIs?

I have been pointed toward the Instant Update API , but I don't have a way to install the APIs to use it. Is there another way?

Answer 1

First of all, the shipping calculator inside PayPal Profile applies only to Website Payment Standards(buy now,add to cart etc) . For making API calls with Express checkout, you need to send few parameters in your CURL API request.

You need to pass PAYMENTREQUEST_n_SHIPPINGAMT in your CURL request.Available variables .

PS You don't need any special permission to make API calls.Just PHP+CURL will do.

Ex CURL to the below URL: https://api-3t.paypal.com/nvp?&user=xxxxxxxxxx&pwd=xxxxxxxxxx&signature=xxxxxxxxxx&version=70.0&METHOD=SetExpressCheckout&RETURNURL=http://www.paypal.com/test.php&CANCELURL=http://www.paypal.com/test.php&PAYMENTACTION=Sale&AMT=50&CURRENCYCODE=USD&PAYMENTREQUEST_n_SHIPPINGAMT=5.00