Amazon FPS: Ruby "SimplePay" Widget return URL validation Utility

Prerequisites

• You must have an Amazon Payments Sandbox Business Account.
• You must have an Amazon Web Services developer account.
• You must use the same email address and password for your Amazon Payments Business Account and your Amazon Web Services developer account.
• You must have Ruby 1.8.6+ installed
• You must have the 'openssl' ruby gem installed

Using the Sample

1. You must have Rails 2.1+ installed
2. Create a rails application skeleton with 'rails your_app_name'
3. Sign into your Amazon Web Services developer account and retrieve your Access Key ID and Secret Access Key from here.
4. Enter your Access Key ID and Secret Access Key values in amazon_simplepay.yml
5. Enter your publicly accessible host's fully qualified host name in amazon_simplepay.yml
6. Enter 'Sandbox' or 'Production' under environment: in amazon_simplepay.yml
7. Copy amazon_simplepay.yml to your_app_name/config/
8. Copy the 'aws' directory to your_app_name/lib/aws/
9. Enter an email address that is already associated with an Amazon Payments (Sandbox or Production) account for 'RECIPIENT_EMAIL' in ipn_controller.rb
10. Copy ipn_controller.rb to your_app_name/app/controllers/
11. cd your_app_name
12. script/server -p 80
13. Open 'http://your_host_name/ipn' in your browser
14. Use 'tail -f log/development.log' to follow your use of the SimplePay button and see the notification in your log after you've completed a transaction