Pinterest Ads API v3 - code 401 Authorization Error

Question

we got the app approved and the token is generated with the user authentication. we even specified all the necessary scopes information during the authorization process. I am trying to read the advertiser and campaign information using the token but getting the following error

Sample Python code:

class BearerAuth(requests.auth.AuthBase):
    def __init__(self, token):
        self.token = token
    def __call__(self, r):
        r.headers["authorization"] = "Bearer " + self.token
        return r
token=<token>

    url='https://api.pinterest.com/ads/v3/advertisers/me/'
    Advertisers = requests.get(url, auth=BearerAuth(token))
    print(Advertisers.json())

response:

  {'error': {'message': 'None'}, 'code': 3, 'data': None, 'message': 'Authorization failed.', 'endpoint_name': 'ads_v3_get_advertiser_handler', 'status': 'failure'}

this is the curl command that I used to generate the token.

curl -X PUT --url https://api.pinterest.com/v3/oauth/access_token/ --header "Authorization: Basic <base 64 encoded id:secret>" --data "code=<codeobtaineduponaccess>&redirect_uri=<redirecturl>&grant_type=authorization_code

do i need to add the scope information in the above command as well or is it not necessary. what am i doing wrong? can someone please explain it to me.

Note: I am able to read the user related information using the token. I am not able to access only the read_advertisers, read_campaigns scopes.

Thanks

Answer 1

In principle you do not need to specify the scope as Pinterest says:

By default when a user grants access to your app you will receive an access token with all possible scopes allowed for your app.

If I am not mistaken you can view all the scopes your user has access to in the response to this end-point:

https://www.pinterest.com/oauth/?client_id={app_id}&redirect_uri={redirect_uri}&response_type=code&state={optional}

Be careful not to specify a scope when calling this endpoint as it can only reduce the scopes you will have access to since no scope means all scope.

Hope that makes sense,

Henri