Rails Routes - Limiting the available formats for a resource

Question

I have a series of resources that I want only available if accessed via the JS format. Rails\' route resources gives me the formats plus the standard HTML. Is there a way

Answer 1

You can use a before_filter that raises a routing error unless the request format is MIME::JS.

app/controllers/application_controller.rb:

class ApplicationController < ActionController::Base
  before_filter :check_js

  private
    def check_js
      raise RoutingError.new('expected application/json') unless request.format == MIME::JS
    end
end

Apply this filter more surgically with :only, :except, and :skip_before_filter as covered in the rails Action Controller Guide