Integration Guide
Table Of Contents
- Express Checkout Integration Guide
- Contents
- Preface
- Introducing Express Checkout
- Express Checkout Button and Logo Image Integration
- PayPal Name-Value Pair API Basics
- Implementing the Simplest Express Checkout Integration
- Testing an Express Checkout Integration
- Customizing Express Checkout
- Implementing the Instant Update API
- Immediate Payment
- Handling Payment Settlements
- Handling Recurring Payments
- How Recurring Payments Work
- Recurring Payments Terms
- Recurring Payments With Express Checkout
- Options for Creating a Recurring Payments Profile
- Recurring Payments Profile Status
- Getting Recurring Payments Profile Information
- Modifying a Recurring Payments Profile
- Billing the Outstanding Amount of a Profile
- Recurring Payments Notifications
- Using Other PayPal API Operations
- Integrating giropay with Express Checkout
Introducing Express Checkout
Express Checkout Building Blocks
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16 October 2009 Express Checkout Integration Guide
When you redirect your buyer’s browser to PayPal, you must specify _ExpressCheckout
command for Express Checkout. You also specify the token that identifies the transaction,
which was returned by the SetExpressCheckout API operation.
IMPORTANT: To enable PayPal to redirect back to your website, you must have already
invoked the SetExpressCheckout API operation, specifying URLs that
PayPal uses to redirect back to your site. PayPal redirects to the success URL
when the buyer pays on PayPal; otherwise, PayPal redirects to the cancel
URL.
If the buyer approves the payment, PayPal redirects to the success URL with the following
information:
z The token that was included in the redirect to PayPal
z The buyer’s unique identifier (Payer ID)
If the buyer cancels, PayPal redirects to the cancel URL with the token that was included in the
redirect to PayPal.
Express Checkout Token Usage
Express Checkout uses a token to control access to PayPal and execute Express Checkout API
operations.
The SetExpressCheckout API operation returns a token, which is used by other Express
Checkout API operations and by the _ExpressCheckout command to identify the
transaction. The life of the token is approximately three hours.