gistfile1.rb

require 'debugger'
require 'bundler'
Bundler.setup
require 'typhoeus'
require 'faraday'
require File.join(File.dirname(__FILE__), 'lib/active_resource')

module ConnectDesk
  module Request
    class Auth < ::Faraday::Middleware

      def initialize(app = nil, options = {})
        debugger
        @per_options = options
        super(app)
      end

      def call(env)
        debugger
        if @per_options[:request_auth_token]
          env[:request_headers].merge!('X-AUTH-TOKEN' => @per_options[:request_auth_token])
        end
        @app.call(env)
      end
    end
  end
end

class User < ActiveResource::Base
  # self.site = 'https://theconnectdesk.com'
  self.site = 'http://localhost:3000'
  # self.adapter = :typhoeus
  # scope :auth, lambda { |token| insert 0, Test::Auth, token }
  scope :as, lambda { |token| insert 0, ConnectDesk::Request::Auth, :request_auth_token => token}
end

debugger
User.find(1)

puts User.as('skret').find(1)

# curl -X GET -i --header "X-AUTH-TOKEN:47aca5a742647f0919fbaf268e2985b4" https://theconnectdesk.com/users/me

Try:

env[:request_headers]['X-AUTH-TOKEN'] = @per_options[:request_auth_token]