desc ‘Print out all defined routes, with grape routes, in match order, with names. Target specific controller with CONTROLLER=x.’ task routes_with_grape: :environment do

all_routes = Rails.application.routes.routes
grape_klasses = ObjectSpace.each_object(Class).select { |klass| klass < Grape::API }
app = all_routes.first.app
grape_klasses.each do |klass|
  klass.compile
  klass.routes.each do |route|
    path = ActionDispatch::Journey::Path::Pattern.new route.route_path
    all_routes.add_route(klass, path, {
      request_method: %r{^#{route.route_method}$}
    }, {}, route.route_description)
  end
end
require 'action_dispatch/routing/inspector'
inspector = ActionDispatch::Routing::RoutesInspector.new(all_routes)
puts inspector.format(ActionDispatch::Routing::ConsoleFormatter.new, ENV['CONTROLLER'])

end