You can process PayPal payments through both the XML Redirect integration model and the XML Direct integration model. The following sections provide information on how to do this.
If you use the XML Hosted Payment Page (XML Redirect) model, our payments service allows you to:
The Hosted Payment Page (XML Redirect) service requires that your system must first collect order and shopper information; and then generate an order in XML format that is delivered to the WorldPay payment service.
On receipt of the XML order WorldPay sends a reply to your system. The reply contains a URL required to redirect the web browser of the shopper (or operator) from the shop to the secure WorldPay environment to submit the payment details.
After the shopper has entered the payment details WorldPay redirects the shopper's browser back to the shop environment.
For more information on the XML Redirect integration model, see the Hosted Payment Pages Guide.
As well as processing PayPal payments through the Redirect API, it is also possible to also take PayPal payments through the XML Direct interface.
The PayPal XML Direct payment method is implemented slightly differently compared to most XML payment methods, as you must redirect the shopper to PayPal to allow the shopper to authenticate with PayPal and agree to the payment.
The anatomy of a PayPal XML Direct payment is explained in the topics below.
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