restful.js is a pure JS client for interacting with server-side RESTful resources. Think Restangular without Angular. This RubyGem bundles restful.js for the Rails asset pipeline.
Add the following to your gemfile:
gem 'restfuljs-rails'
Add the following directive to your Javascript manifest file ( probably application.js):
//= require restful.min
restfuljs-rails x.y.z == restful.js.min x.y.z