lib/oauth.js
function linkTokenSuccess(req, res, next) {
    var provider = getProviderToken(req.path);
    res.status(200).json({
      ok: true,
      success: util.capitalizeFirstLetter(provider) + ' successfully linked',
      provider: provider
    });
  }
function linkTokenSuccess(req, res, next) {
    var provider = getProviderToken(req.path);
    res.status(200).json({
      ok: true,
      success: util.capitalizeFirstLetter(provider) + ' successfully linked',
      provider: provider
    });
  }
Called after an account has been succesfully linked using access_token provider