CSocServYandexAuth::getStorageToken

public function getStorageToken()
{
	$accessToken = null;
	$userId = intval($this->userId);
	if($userId > 0)
	{
		$dbSocservUser = BitrixSocialservicesUserTable::getList([
			'filter' => ['=USER_ID' => $userId, "=EXTERNAL_AUTH_ID" => static::ID],
			'select' => ["OATOKEN", "REFRESH_TOKEN", "OATOKEN_EXPIRES"]
		]);
		if($arOauth = $dbSocservUser->fetch())
		{
			$accessToken = $arOauth["OATOKEN"];
		}
	}

	return $accessToken;
}