Study Guide
Table Of Contents
- PayPal Certified Developer Program Study Guide
- Contents
- List of Tables
- Online Payment Processing
- Internet Security and Fraud Prevention
- Why Every Business Should Be Concerned About Internet Fraud
- Liability for Internet Fraud
- Internet Fraud: What It Is and How It Happens
- Who Is at Risk for Online Fraud
- Reducing Exposure to Fraud
- What Banks and Card Associations Are Doing to Prevent Online Credit Card Fraud
- What PayPal Is Doing to Protect Your Business Against Fraud
- Disclosure and Compliance
- PayPal Fraud Protection Services
- Review Questions
- Getting Started With Account Setup
- API Credentials
- Name-Value Pair (NVP) API
- Express Checkout
- Direct Payment API
- Transactions
- Sandbox Testing
- Answers to Review Questions
- General Reference Information
- Glossary
- Index
Contents
4 March 2008 PayPal Certified Developer Program Study Guide
Chapter 3 Getting Started With Account Setup . . . . . . . . . . . .43
Basic Steps for Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
PayPal Sandbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Review Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Chapter 4 API Credentials . . . . . . . . . . . . . . . . . . . . . . .47
What API Credentials Are . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Choosing an Authentication Method . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Establishing API Credentials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
API Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
API Certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Using API Credentials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Review Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Chapter 5 Name-Value Pair (NVP) API . . . . . . . . . . . . . . . . .53
Integrating with the PayPal API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Basic Steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Create a Web Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Get API Credentials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Create and Post the Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Interpret the Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Technical Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Request-Response Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Request Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Response Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Posting Using HTTPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Review Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Chapter 6 Express Checkout . . . . . . . . . . . . . . . . . . . . . .59
How Express Checkout Works. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Express Checkout API Reference Information. . . . . . . . . . . . . . . . . . . . . . . . 61
SetExpressCheckout Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
SetExpressCheckout Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
GetExpressCheckoutDetails Request . . . . . . . . . . . . . . . . . . . . . . . . . . 66
GetExpressCheckoutDetails Response . . . . . . . . . . . . . . . . . . . . . . . . . 66
DoExpressCheckoutPayment Request . . . . . . . . . . . . . . . . . . . . . . . . . 68
DoExpressCheckoutPayment Response . . . . . . . . . . . . . . . . . . . . . . . . 71