PayPal offers a wide range of payment technologies, but it’s not always clear which is the best choice for a website. This book gets under the hood to show you how the different technologies work, how to choose the right solution, and how to implement it - complete with real-world examples. The book shows developers how to integrate PayPal directly into websites to make use of its payment technologies. This allows developers, no matter what language they program in, to build shopping carts or similar channel products with PayPal as a payment option. The book is written by a PayPal employee with great knowledge of the technology.