title: Relayjs Graphql user authentication
body: <p>Is it possible to authenticate users with different roles solely trough a graphql server in combination with relay &amp; react?</p>
  
  <p>I looked around, and couldn't find much info about this topic.</p>
  
  <p>In my current setup, the login features with different roles, are still going trough a traditional REST API... ('secured' with json web tokens).</p>