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<?php |
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/** |
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* Part of Dear package. |
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* |
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* @package Dear |
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* @version 1.0 |
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* @author Umair Mahmood |
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* @license MIT |
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* @copyright Copyright (c) 2019 Umair Mahmood |
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* |
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*/ |
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namespace UmiMood\Dear\Api; |
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use GuzzleHttp\Client; |
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use GuzzleHttp\Exception\ClientException; |
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use GuzzleHttp\Exception\ServerException; |
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use UmiMood\Dear\Api\Contracts\DeleteMethodAllowed; |
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use UmiMood\Dear\Api\Contracts\PostMethodAllowed; |
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use UmiMood\Dear\Api\Contracts\PutMethodAllowed; |
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use UmiMood\Dear\Config; |
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use UmiMood\Dear\Exception\BadRequestException; |
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use UmiMood\Dear\Exception\DearApiException; |
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use UmiMood\Dear\Exception\ForbiddenRequestException; |
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use UmiMood\Dear\Exception\InternalServerErrorException; |
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use UmiMood\Dear\Exception\MethodNotAllowedException; |
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use UmiMood\Dear\Exception\NotFoundException; |
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use UmiMood\Dear\Exception\ServiceUnavailableException; |
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use UmiMood\Dear\Helper; |
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use UmiMood\Dear\RESTApi; |
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abstract class BaseApi implements RESTApi |
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{ |
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/** |
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* Default limit |
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*/ |
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const LIMIT = 100; |
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/** |
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* Default page |
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*/ |
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const PAGE = 1; |
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/** |
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* HTTP request content type |
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*/ |
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const CONTENT_TYPE = 'application/json'; |
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/** |
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* @var Config |
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*/ |
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protected $config; |
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/** |
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* BaseApi constructor. |
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* @param $config |
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*/ |
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public function __construct(Config $config) |
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{ |
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$this->config = $config; |
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} |
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/** |
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* Provide endpoint's action name |
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* @return string |
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*/ |
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abstract protected function getAction(); |
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/** |
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* Represents the GUID column name |
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* @var string |
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*/ |
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abstract protected function getGUID(); |
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/** |
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* GUID column name for delete action |
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* @return string |
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*/ |
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protected function deleteGUID() |
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{ |
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return 'ID'; |
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} |
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/** |
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* Returns required headers |
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* @return array |
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*/ |
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protected function getHeaders() |
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{ |
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return [ |
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'Content-Type' => self::CONTENT_TYPE, |
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'api-auth-accountid' => $this->config->getAccountId(), |
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'api-auth-applicationkey' => $this->config->getApplicationKey() |
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]; |
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} |
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/** |
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* @return Client |
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*/ |
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protected function getClient() |
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{ |
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$client = new Client([ |
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'base_uri' => $this->getBaseUrl() |
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]); |
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return $client; |
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} |
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/** |
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* @return string |
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*/ |
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final protected function getBaseUrl() |
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{ |
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return 'https://inventory.dearsystems.com/ExternalApi/v2/'; |
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} |
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final public function get($parameters = []) |
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{ |
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return $this->execute('GET', Helper::prepareParameters($parameters)); |
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} |
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final public function find($guid, $parameters = []) |
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{ |
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$parameters[$this->getGUID()] = $guid; |
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return $this->execute('GET', Helper::prepareParameters($parameters)); |
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} |
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final public function create($parameters = []) |
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{ |
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if (!$this instanceof PostMethodAllowed) { |
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throw new MethodNotAllowedException('Method not allowed.'); |
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} |
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return $this->execute('POST', $parameters); |
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} |
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final public function update($guid, $parameters = []) |
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{ |
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if (!$this instanceof PutMethodAllowed) { |
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throw new MethodNotAllowedException('Method not allowed.'); |
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} |
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$parameters[$this->getGUID()] = $guid; |
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return $this->execute('PUT', $parameters); |
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} |
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final public function delete($guid, $parameters = []) |
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{ |
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if (!$this instanceof DeleteMethodAllowed) { |
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throw new MethodNotAllowedException('Method not allowed.'); |
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} |
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$parameters[$this->deleteGUID()] = $guid; |
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return $this->execute('DELETE', Helper::prepareParameters($parameters)); |
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} |
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/** |
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* @param $httpMethod |
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* @param array $parameters |
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* @return array |
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* @throws \GuzzleHttp\Exception\GuzzleException |
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*/ |
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protected function execute($httpMethod, array $parameters) |
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{ |
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try { |
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$requestParams = [ |
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'headers' => $this->getHeaders() |
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]; |
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if ($httpMethod == 'POST' || $httpMethod == 'PUT') { |
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$requestParams['body'] = json_encode($parameters); |
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} else { |
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$requestParams['query'] = $parameters; |
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} |
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$response = $this->getClient()->request($httpMethod, $this->getAction(), $requestParams); |
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return \GuzzleHttp\json_decode((string)$response->getBody(), true); |
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} catch (ClientException $clientException) { |
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return $this->handleClientException($clientException); |
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} catch (ServerException $serverException) { |
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if ($serverException->getResponse()->getStatusCode() === 503) { |
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// API limit exceeded |
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sleep(5); |
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return $this->execute($httpMethod, $parameters); |
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} |
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return $this->handleServerException($serverException); |
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} |
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} |
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/** |
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* @param ClientException $e |
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*/ |
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protected function handleClientException(ClientException $e) |
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{ |
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$response = $e->getResponse(); |
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switch ($response->getStatusCode()) { |
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case 400: |
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$exceptionClass = BadRequestException::class; |
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break; |
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case 403: |
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$exceptionClass = ForbiddenRequestException::class; |
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break; |
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case 404: |
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$exceptionClass = NotFoundException::class; |
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break; |
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case 405: |
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$exceptionClass = MethodNotAllowedException::class; |
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break; |
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default: |
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$exceptionClass = DearApiException::class; |
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break; |
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} |
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$exceptionInstance = new $exceptionClass($e->getMessage()); |
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$exceptionInstance->setStatusCode($response->getStatusCode()); |
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throw $exceptionInstance; |
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} |
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/** |
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* @param ServerException $e |
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*/ |
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protected function handleServerException(ServerException $e) |
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{ |
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$response = $e->getResponse(); |
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switch ($response->getStatusCode()) { |
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case 500: |
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$exceptionClass = InternalServerErrorException::class; |
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break; |
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case 503: |
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$exceptionClass = ServiceUnavailableException::class; |
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break; |
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default: |
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$exceptionClass = DearApiException::class; |
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break; |
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} |
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$exceptionInstance = new $exceptionClass($e->getMessage()); |
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$exceptionInstance->setStatusCode($response->getStatusCode()); |
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throw $exceptionInstance; |
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} |
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} |