title: Instagram OAuth Access Token expiration for app
body: <p>I am creating an app that will be using a users access token to pull images from a hashtag feed and I want to be sure that the OAuth token will not expire. The user will be visiting the site regularly, but i don't want it to rely on instagrams maybe-could be someday attitude on when the tokens will expire. </p>
  
  <p>I also don't want to use the app level token because i only get a limited amount of calls per hour and that will shrink quickly as more users are added.</p>
  
  <p>Is there a way to refresh tokens or convert them into longer lasting tokens? Or at least have an expiration date so I know when to tell users to come back and re-auth?</p>