This repository contains sample code that is organized by chapter for the book PayPal APIs: Up and Running (2nd Edition). Each chapter integrates various PayPal products into a sample reference project called Tweet Relevance from Appendix A.
- ch01 - PayPal API Overview
- ch02 - Express Checkout (Including Mobile Express Checkout)
- ch03 - Express Checkout for Digital Goods
- ch04 - Adaptive Payments (Simple, Parallel, and Chained Payments)
- ch05 - Website Payments Pro (Direct Payment)
- ch06 - Instant Payment Notifications (IPNs)
- appa - Overview of Tweet Relevance
Tweet Relevance adapts SitePen's TweetView mobile user interface to display tweets that are ranked by "relevance" as opposed to a pure chronological view of the tweets, which is the approach that most clients currently take. A screenshot of Tweet Relevance follows:
