Use Google API with a token [Django & AllAuth]

Question

I am using AllAuth on my Django app to manage user authentication. With that my users can connect their Google accounts and i get a google API token (with appropriate scopes).

I would like to use that token to access google APIs (Calendar v3 in my case) with that token, as my user already used OAuth2 to sign-in on my website, and gave me access to the calendar API.

Google only gives the full process on their website (from auth to api), is there a way to build my idea, or is it simply impossible?

i have tries drive = build('calendar', 'v3', credentials=credentials) as said here but "credentials" needs to be part of an oauth2client and not just a simple string token.

Thank you for your precious time.

Answer 1

I know its an older question but I finally found something that worked for me. After a successful authentication with allauth, I did this to get the client token and then build the service.

    from googleapiclient.discovery import build
    from google.oauth2.credentials import Credentials
    from allauth.socialaccount.models import SocialToken, SocialApp

    ...    

    # request is the HttpRequest object
    token = SocialToken.objects.get(account__user=request.user, account__provider='google')

    credentials = Credentials(
        token=token.token,
        refresh_token=token.token_secret,
        token_uri='https://oauth2.googleapis.com/token',
        client_id='client-id', # replace with yours 
        client_secret='client-secret') # replace with yours 

    service = build('calendar', 'v3', credentials=credentials)

Make sure to have SOCIALACCOUNT_STORE_TOKENS = True as per https://django-allauth.readthedocs.io/en/latest/configuration.html, otherwise you wont have any SocialToken objects.