title: Get Access Token Without Login | Facebook`
body: <p>I am creating a web app and I need to make a call like this one:
  <code>
  https://graph.facebook.com/639339682906611?access_token={my_access_token_here}
  </code></p>
  
  <p>When I obtain an access_token through the Graph API Explorer, it works fine. But after a while (some days I think) the token expires and I have to go to manually go to the Graph API Explorer again to renew it.</p>
  
  <p>The web app requires no login for the users.</p>
  
  <p>Is there a way to update my access_token automatically?
  If not, is there a way to make my access_token last longer?</p>