PayPal Express Checkout - 2012 Podręcznik Użytkownika Pobierz pdf (Strona 18)

Getting Started With Express Checkout

Implementing the Simplest Express Checkout Integration

18 August 7, 2012 Express Checkout Integration Guide

5. Specify the cancel URL.

The cancel URL is the page to which PayPal redirects your buyer’s browser if the buyer

does not approve the payment. Typically, this is the secure page (https://...) on your

site from which you redirected the buyer to PayPal.

NOTE: You can pass SetExpressCheckout request values as parameters in your URL

to have the values available, if necessary, after PayPal redirects to your URL.

CANCELURL=cancel_url

6. Specify the payment action.

Although the default payment action is a Sale, it is a best practice to explicitly specify the

payment action as one of the following values:

PAYMENTREQUEST_0_PAYMENTACTION=Sale

After Completing This Task:

If calling the SetExpressCheckout API was successful, redirect the buyer’s browser to

PayPal and execute the _express-checkout command using the token returned in the

SetExpressCheckout response.

NOTE: The following example uses the PayPal Sandbox server:

https://www.sandbox.paypal.com/webscr

?cmd=_express-checkout&token=tokenValue

Obtaining Express Checkout Transaction Details

To obtain details about an Express Checkout transaction, you can invoke the

GetExpressCheckoutDetails API operation.

This example assumes that PayPal redirects to your buyer’s browser with a valid token after

the buyer reviews the transaction on PayPal.

Although you are not required to invoke the GetExpressCheckoutDetails API operation,

most Express Checkout implementations take this action to obtain information about the

buyer. You invoke the GetExpressCheckoutDetails API operation from the page

specified by return URL, which you set in your call to the SetExpressCheckout API.

Typically, you invoke this operation as soon as the redirect occurs and use the information in

the response to populate your review page.

To obtain a buyer’s shipping address and Payer ID:

1. Specify that you want to execute the GetExpressCheckoutDetails API operation and

the version you want to use.

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PayPal Express Checkout - 2012 Podręcznik Użytkownika Strona 18