title: Phoenix/Elixir Background workers
body: <p>I need to setup a background worker in Phoenix and communicate with it from a channel through Elixir send/receive.</p>
  
  <ol>
  <li>Where should I put a module for the working in the Phoenix dir structure (<code>lib</code> perhaps?)</li>
  <li>How do I Load/Reference the module from channels?</li>
  </ol>