$redirectUrl = OpenIdSession::getAuthorizationUrl(
$baseUrl,
array('openid', 'profile', 'address', 'email', 'phone',
'https://uri.paypal.com/services/paypalattributes', 'https://uri.paypal.com/services/expresscheckout'),
null,
null,
null,
$apiContext
);
Get User Consent URL
The clientId is stored in the bootstrap file