A gentle introduction to nio4r: low-level portable asynchronous I/O for RubyJuly 12, 2016 A gentle introduction to nio4r: low-level portable asynchronous I/O for Ruby Rails 5.0 was recently released, and with it came ActionCable, a new part of the framework to put WebSockets “on Rails”. ActionCable has had something of a sordid history, from taking Rails Core developer Aaron Patterson by surprise when he first heard of it at a RailsConf keynote to at one point using both
