Unable to use custom social connection to google to return youtube channels

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1

Hello, we’re using a custom social connection to get users’ youtube channel data. (We can’t use the built-in google connection because it automatically requests the “Manage” permission for youtube and that’s a nonstarter for our users.)

We have the authentication working and returning the user profile. We’ve also added the youtube.readonly scope to the social connection and the YouTube data returns in the Fetch User Profile Script, but we aren’t able to add the channels array (or any custom fields) to the returning profile object and have it come back in our app. We have also tried adding the data to user_metadata without any luck.

How can we return the YT channels to our app just like the built-in google connection does?

Thanks in advance — here is our fetch script:

function (accessToken, ctx, cb) {
  const urlRoot = `https://youtube.googleapis.com/youtube/v3/channels`;
  const params = [
    `key=xxx`,
    'mine=true',
    'part=id,snippet',
  ];
  
  const url = `${urlRoot}?${params.join('&')}`;
  const profileData = jwt.decode(ctx.id_token)

  request.get(
    {
      url: url,
      headers: {
        'Authorization': `Bearer ${accessToken}`,
        'Client-Id': ctx.options.client_id
      },
      json: true
    }, 
    (err, resp, body) => {
      const channels = body && Array.isArray(body.items) ? [...body.items] : [];

      const profile = {
        user_id: profileData.sub,
        email: profileData.email,
        channels: channels // doesn't return to our app
      };

      cb(null, profile);
    }
  );
}
2

In case anyone stumbles on this, the solution is to use Auth0 Actions to add middleware to the social connection flow and add whatever extra objects are necessary to return in the response.