I have spent the last 3 hours trying to integrate google drive to v14 using the available documentation but came up short. I was almost going to give up until my eyes caught the request url being different from what was in the documentation. I had to dig into the code to find that the call_back function does not exist in google_drive anymore. Rather a global callback function has been created in google_auth.
For those who may have been stuck as i was for hours, simply use this redirect url:
Whoever has access to the documentation should also update it to show the changes so someone else does not suffer like i did.