RABL is one of the most popular and easiest ways to craft high quality APIs in Ruby as used in large projects like Spree and foreman. As RABL’s popularity has grown, I often get questions about improving performance of APIs as the volume of traffic for the web service increases. I released a helpful guide that covers this question in detail called RABL in Production. If you have any other thoughts or questions, please feel free to raise an issue or help improve the article!