CBitrixOAuthInterface::GetAuthUrl

public function GetAuthUrl($redirect_uri, $state = '')
{
	return $this->portalURI.'/oauth/authorize/'.
		"?client_id=".urlencode($this->appID).
		"&redirect_uri=".urlencode($redirect_uri).
		"&scope=".$this->getScopeEncode().
		"&response_type=code".
		($state != '' ? '&state='.urlencode($state) : '');
}