cache.rb

require "rubygems"
require "bundler/setup"

require 'typhoeus'

class Cache
  attr_reader :memory

  def initialize
    @memory = {}
  end

  def get(request)
    memory[request]
  end

  def set(request, response)
    memory[request] = response
  end
end
c = Cache.new

Typhoeus::Config.cache = c

puts Typhoeus.get("127.0.0.1:3001").inspect

puts Typhoeus.get("127.0.0.1:3001/wp-content/plugins").inspect

Gemfile

source "http://rubygems.org"

gem 'typhoeus', :git => "https://github.com/typhoeus/typhoeus.git"