“Rails is just an API,” say Alex (featured on Episode 0.7.1) and others. Rails core team member Santiago Pastorino might not endorse the “just” part, but his Rails::API aims to provide a slimmer stack for those wanting to use Rails as an API backend for their client-side or mobile applications. The result is a fine-tuned subset of Rails, letting the developer opt-in to just the middleware needed. Rails::API requires a small change to your controllers:

# instead of
class ApplicationController < ActionController::Base
end

# do
class ApplicationController < ActionController::API
end

Check out the README for installation and advanced usage and Santiago’s blog post for more.

We’ll be covering a similar project, Lightrail, when we chat with Tony Arcieri about Celluloid next week.


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