gistfile1.rb

    def self.uri(options = {})
      uri = [ Canvas::BASE_URI ]
      uri.push self.model
      uri.push options[:id].to_s if options[:id]
      uri.push options[:action].to_s if options [:action]
      apikey = options[:api_key] || @@api_key
      uri.push "?api_key=#{apikey}" if apikey
      uri.join '/'
    end