This is a presentation I gave in September 2011 at the Denver RIA Developers Group showing how to create a Flex application that interacts with a Ruby on Rails server. In fact it was schedule for the Flash Builder track of Adobe Max but was bumped to the the 360Flex Unconference as it was deemed too specialized for the general track. In this presentation I will show you how to interact with Rails using REST, nested resources, nested attributes and the newest kid on the block, the bulk-api allowing to transfer complex data structures between your rich client application and your Rails server. You will get a good overview on how Rails works and how to quickly build a Flex application on top of Ruby on Rails.