Recurring billing with Rails and ActiveMerchant: Best practices, pitfalls, gotchas?

Question

We are prepping for the release of a large web application that has been in development for the past year. We are about to start the process of integrating ActiveMerchant to han

Answer 1

Peepcode has a PDF for sale(70 pages) that details various aspects of payment processing and industry practices for this. It may be worth checking out:

http://peepcode.com/products/activemerchant-pdf