RestClient::call

protected function call($methodName, $additionalParams = null, $licenseCheck = false, $clearAccessSettings = false)
{
	$result = new ResultSerializable();

	if(!self::isServerAlive() && !defined('SALE_SRVS_RESTCLIENT_DISABLE_SRV_ALIVE_CHECK'))
	{
		$result->addError(
			new Error(
				Loc::getMessage('SALE_SRV_BASE_REST_CONNECT_ERROR').' '.$this->getServiceHost(),
				self::ERROR_SERVICE_UNAVAILABLE
			)
		);
		return $result;
	}

	if ($clearAccessSettings)
	{
		$this->clearAccessSettings();
		$this->accessSettings = null;
	}

	if (is_null($this->accessSettings))
	{
		$this->accessSettings = $this->getAccessSettings();
	}

	if (!$this->accessSettings)
	{
		$result->addError(new Error(Loc::getMessage('SALE_SRV_BASE_REST_ACCESS_SETTINGS_ERROR')));
		return $result;
	}

	if (!is_array($additionalParams))
		$additionalParams = array();
	else
		$additionalParams = Encoding::convertEncodingArray($additionalParams, LANG_CHARSET, "utf-8");

	$additionalParams['version'] = $this->version;
	$additionalParams['client_id'] = $this->accessSettings['client_id'];
	$additionalParams['client_secret'] = $this->accessSettings['client_secret'];
	$additionalParams['lang'] = LANGUAGE_ID;

	if ($licenseCheck)
	{
		$additionalParams = static::signLicenseRequest($additionalParams, static::getLicense());
	}

	$host = $this->getServiceHost();
	$http = new HttpClient([
		'socketTimeout' => $this->httpTimeout,
		'streamTimeout' => $this->streamTimeout,
	]);
	$postResult = @$http->post(
		$host.static::REST_URI.$methodName,
		$additionalParams
	);

	try
	{
		$answer = $this->prepareAnswer($postResult);
	}
	catch(Exception $e)
	{
		$answer = false;
	}

	if (!is_array($answer))
	{
		$result->addError(new Error(Loc::getMessage('SALE_SRV_BASE_REST_ANSWER_ERROR').' '.$this->getServiceHost().'. (Status: "'.$http->getStatus().'", Result: "'.$postResult.'")', static::ERROR_SERVICE_UNAVAILABLE));
		$this->setLastUnSuccessCallInfo();
		return $result;
	}

	if(self::getLastUnSuccessCount() > 0)
		$this->setLastUnSuccessCallInfo(true);

	if (array_key_exists('error', $answer))
	{
		if ($answer['error'] === 'verification_needed')
		{
			if($licenseCheck)
			{
				$result->addError(new Error($answer['error'].". ".$answer['error_description'], self::ERROR_WRONG_LICENSE));
				return $result;
			}
			else
			{
				return $this->call($methodName, $additionalParams, true);
			}
		}
		else if (($answer['error'] === 'ACCESS_DENIED' || $answer['error'] === 'Invalid client' || $answer['error'] === 'NO_AUTH_FOUND')
			&& !$clearAccessSettings)
		{
			return $this->call($methodName, $additionalParams, true, true);
		}

		$result->addError(new Error($answer['error'].". ".$answer['error_description']));
		return $result;
	}

	if ($answer['result'] == false)
		$result->addError(new Error('Nothing found', static::ERROR_NOTHING_FOUND));

	if (is_array($answer['result']))
		$result->addData($answer['result']);

	return $result;
}