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PayPal Notifications
PayPal's IPN (Instant Payment Notification) service allows your app to get confirmation when an order is processed. In this episode I use IPN to mark a cart as purchased.
(10 minutes)
RSpec Matchers & Macros
You can improve the readability and remove duplication in RSpec by adding matchers and macros. Learn how in this episode.
(18 minutes)
Gem Dependencies
In Rails 2.1 we now have the ability to set gem dependencies. Now it's easier than ever to specify which ruby gems our rails app relies on.
(6 minutes)