Datomic is a new database categorized as NewSQL and was created by Rich Hickey. Everybody knows this big name and thinks of Clojure. It is true Datomic fits well to Clojure programming. However, it is not only for Clojure people.

Absolutely, Rubyists can use it. We have Diametric gem (https://github.com/relevance/diametric). Using Diametric, we can dive into Datomic from Ruby, from Rails.

On Diametric, Datomic's entity is an ActiveModel compliant. Diametric supports Rails' scaffolding.Its usage might look like Datamapper or MongoDB. Eventually, Diametric’s API design settled in a bit far from Ruby, Rails style. In another word, it is not ORM-like. Even though the API design may puzzle Rubyists, Diametric chose the one to expose Datomic's intrinsic properties. It is to leverage a good side of Datomic for us. I believe the more Rubyists use Diametric, the more they like it.

In my talk, I’ll introduce Diametric gem and how to use it as well as why its API design is good for us. Also, I will cover how Ruby helped to integrate Datomic API in Diametric gem.

About Yoko Harada

Yoko is an Open Source contributer. She has worked for JRuby and Nokogiri as a committer for years . Also, she has been contributed to Ruby community. Last fall, Yoko organized the first RailsGirls Tokyo, and try(:english) at Sapporo RubyKaigi. Now, she works for Relevance, Inc. as a developer and enjoys polyglot programming of Ruby, Java and Clojure.

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