PayPal Express Checkout - 2009 Guia do Utilizador descarregar pdf (Página 71)

Express Checkout Integration Guide October 2009 71

Implementing the Instant Update API

About the Instant Update API

PayPal Review page with shipping options, insurance, and tax

You can control what options are presented to the buyer as the options can be instantly

updated on the page.

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Express Checkout 1
Integration Guide 1
Contents 3
Intended Audience 7
Revision History 7
Getting Started 10
Introducing Express Checkout 11
Express Checkout Flow 12
Express Checkout Buttons 14
Express Checkout Command 15
Express Checkout Token Usage 16
Express Checkout Button and 17
Logo Image Integration 17
Dynamic Images 18
Configuring the Dynamic Image 18
Set Up the Default Image 19
Set Up Image for Dynamic Use 19
Change the Locale 20
Choose the Image 20
Dynamic Image Parameters 21
Locale Codes 21
PayPal Name-Value Pair API 25
Multiple API Operations 26
Token Security 27
Obtaining API Credentials 28
Creating an NVP Request 30
Specifying an API Credential 31
URL Encoding 32
Executing NVP API Operations 33
Responding to an NVP Response 34
Implementing the Simplest 35
Express Checkout Integration 35
TOKEN=tokenValue 37
Testing an Express Checkout 39
Integration 39
Customizing Express Checkout 45
PayPal Page Style 54
Custom Page Style 55
Changing the Locale 58
Handling Shipping Addresses 59
Confirmed Address 60
Shipping Address Override 63
User Confirms Order on PayPal 67
About the Instant Update API 69
Setting Up the Callback 74
Other Considerations 75
Using the Callback 76
SetExpressCheckout 77
Response Parameters 78
Callback Request 79
Callback Response 79
Immediate Payment 81
Handling Payment Settlements 85
Order Payment Action 86
Recurring Payments Terms 90
Specifying an Initial Payment 97
Handling Recurring Payments 100
Updating Addresses 100
Updating the Billing Amount 100
Using Other PayPal API 103
Operations 103
Handling Payment Review 104
Checkout 107
Complete the Transaction 110

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