title: Can I send access token using GET method?
body: <p>I'm building RESTful API, but I have some question while implementing <code>/valid</code> 
  endpoint.</p>
  
  <p><code>/valid</code> endpoint checks token expiration.</p>
  
  <ol>
  <li><p>Is GET method good choice for this endpoint?</p></li>
  <li><p>Is there any problem with sending token using GET method?
  (like <a href="http://some.api/valid?access_token=ACCESS.TOKEN.STRING" rel="nofollow noreferrer">http://some.api/valid?access_token=ACCESS.TOKEN.STRING</a> )</p></li>
  </ol>