How to properly implement authentication and storage of user data VK API?

Did the user authorization in the VC, via oAuth.
I would like to know how to store the data, that is, the user token in the database, whether or not to encrypt?
How to implement session and bind cookies to the user does not have to reenter each time, and preserved data?
Or authorization every time to get a new token for user interaction?
Thanks in advance)
June 3rd 19 at 19:07
1 answer
June 3rd 19 at 19:09
The user token is not necessary every time to get data can safely save to the database.
You have some kind of cms?

Find more questions by tags VKontakte