Long access_token in classmates?

Question

Android

An application is being developed for android with authorization on classmates via OAuth 2.0. In this case, the access token has a lifetime of 30 minutes, so you have to force the user to re-enter OK. But judging by the message ok.ru/apiok/topic/63526238060664 , there are long tokens with a much longer lifetime.
Can anyone tell me how to use this long tokens feature in this case?

Answer 1

You need to request a LONG_ACCESS_TOKEN permission to [email protected] and add it to the scope with OAuth.

Answer 2

Use refresh_token