Recently a client of ours wanted to use the Commonwealth Bank of Australia (CBA)'s BPOINT gateway for their web application. The first thing we do is usually turn to ActiveMerchant to see if there is already a gateway class for the merchant. In this case we couldn't find a gateway class or anything or any sort of implementation in ruby.
So today we're releasing our open source BPOINT plugin for ActiveMerchant. Installation instructions and usage are available at the GitHub project page: https://github.com/Sentia/activemerchant-bpoint.
It's very simple to setup and use, good luck and enjoy.