In my Node application, I store in the DB a long-lived user facebook access token and run a cron periodically.
There's a way to renew that access token after the 60 days without asking the user to renew it in my mobile app? I use fbgraph node module to communicate with the graph API, so maybe there's a way to renew that token from the backend itself without going to the mobile app, ask for status and login again with the JavaScript SDK.