public function getAccessToken($code = '')
	{
		$dta = array('client_id' => $this->_API['API_KEY'], 'client_secret' => $this->_API['API_SECRET'], 'code' => $code);
		$data = $this->call(['METHOD' => 'POST', 'URL' => 'https://' . $this->_API['SHOP_DOMAIN'] . '/admin/oauth/access_token', 'DATA' => $dta], FALSE);

		return $data->access_token;
	}