OAuth Token Duration
The Authorization URL uses the duration=permanent query parameter to specify how long a user can interact with your app (once they’ve granted access).
To request short-lived access to your app or sign a user in, do not include this parameter in the Authorization URL.
To request user data indefinitely (for more involved integrations), include the duration=permanent parameter in your Authorization URL. You will only need to pass this parameter once to link your app with a user’s WAX Account. A user can revoke this access at any time from their WAX Account settings.