Once the API has been created (see tutorial), you have to place the client codes in the option within the Appyn panel and click on Save changes.
We click on “Connect to Google Drive”.
A window will appear to enter with our account. Once we enter; Being a Google Drive application without verification (this takes weeks), the following alert will appear.
We click on Advanced Settings -> Go to (your website) (unsafe).
We grant permission and it will redirect us to the Appyn panel.
Within the Appyn panel we must see the confirmation of the account connected to Google Drive.