Find routes in Rails console

If you are working with Rails 3 or 4 applications, you might find this helpful.

Most of us know, how cool $rake routes is, but those of you who work with larger applications are probably annoyed with slow rails app loading times, which is needed for rake tasks. Put this code in your ~/.irbrc file for a lightweight, application-independent solution to view and filter routes:

if defined? Rails

 if Rails::VERSION::STRING >= "4"

 # returns an array of routes in Rails 4
 def formatted_routes
 r = Rails.application.routes.routes
 i = ActionDispatch::Routing::RoutesInspector.new(r)
 f = ActionDispatch::Routing::ConsoleFormatter.new
 i.format(f).split("\n")
 end

 else
 require 'rails/application/route_inspector'

 # returns an array of routes in Rails 3
 def formatted_routes
 inspector = Rails::Application::RouteInspector.new
 inspector.format(Rails.application.routes.routes)
 end

 end

 # filter and print out the routes
 def routes(filter = nil)
 Rails.application.reload_routes!
 formatted = formatted_routes
 if filter
 formatted.select!{ |r| r.match(filter) }
 end
 puts formatted
 end
end

Raw gist for easy copying

Usage:

> routes
=> prints all routes
> routes /GET.*user/i
=> prints routes matching a given regex
> routes "user"
=> matches strings as well

Alternative solutions: zeus, sextant