title: Is there any way to get button answer without interactive message?
body: <p>We're implementing a slackbot internally in our company.</p>
  
  <p>Because we cannot open a local server on internet, we want to bypass interactive message system.
  Is there any way to do so ? A custom event for example ?</p>
  
  <p>Thanks,</p>
  
  <p>Yohann.</p>