Hi.
I have completed the tutorial :
http://docs.appery.io/tutorials/build...
Everything work just fine according to tutorial, but I am wondering about how to renew the access_token when it is not valid anymore?
I am using a login, and return screen "myAccountScreen".
I notice if I login, I get code + access_token as it should, but then "code" is used, and not valid anymore.
If I click one of my navigation button "My account", It try to get the access_token again, but as "code" is invalid, it return an error from facebook.
I am trying to wrap my head around the best approach for this, as your tutorial only goes trough a 1 time sign in process, and click a button to get data trough api.
Any suggestions?