PayPal Express Checkout - 2010 Guia do Utilizador descarregar pdf (Página 76)

Customizing Express Checkout

Buyer Pays on PayPal

76 May 2010 Express Checkout Integration Guide

read Pay Now. (After the buyer returns from the PayPal site, you must call

DoExpressCheckoutPayment to actually complete the transaction.)

To display Pay Now on the button:

1. Get the token from the response to SetExpressCheckout.

The response to SetExpressCheckout is the buyer’s token. For example, if the value of

RETURNURL passed to SetExpressCheckout is

https://www.websitename.com/snagECvalues, the URL to which PayPal redirects

appears as https://www.websitename.com/snagECvalues?token=EC-

0W8920957N684880R

2. Add the token and the desired

useraction value (continue or commit) as name-value pairs

to the following URL:

https://www.paypal.com/cgi-bin/webscr?cmd=_express-

checkout&token=

valueFromSetExpressCheckoutResponse&useraction=commit

The figure below shows the PayPal Review page when useraction=commit.

PayPal review page when user commits to purchase on PayPal

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PayPal Express Checkout - 2010 Guia do Utilizador Página 76