Google Calendar API v3 - How to obtain a refresh token (Python)

Question

I am trying to write a Django app which creates events in a specific Google calendar. So far I have been successful. There is only a little problem:

I don\'t

Answer 1

If you follow this manual https://developers.google.com/identity/protocols/OAuth2WebServer and you can not receive refresh_token, try to add prompt='consent' here:

authorization_url, state = flow.authorization_url(
    # Enable offline access so that you can refresh an access token without
    # re-prompting the user for permission. Recommended for web server apps.
    access_type='offline',
    prompt='consent',
    # Enable incremental authorization. Recommended as a best practice.
    include_granted_scopes='true')

Here is described why it can happen