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<?php |
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namespace ByJG\ApiTools; |
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use ByJG\ApiTools\Base\Schema; |
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use ByJG\ApiTools\Exception\NotMatchedException; |
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use ByJG\ApiTools\Exception\StatusCodeNotMatchedException; |
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use GuzzleHttp\Exception\BadResponseException; |
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use GuzzleHttp\Exception\GuzzleException; |
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use GuzzleHttp\Psr7\Request; |
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use Psr\Http\Message\RequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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/** |
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* Abstract baseclass for request handlers. |
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* |
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* The baseclass provides processing and verification of request and response. |
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* It only delegates the actual message exchange to the derived class. For the |
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* messages, it uses the PSR-7 implementation from Guzzle. |
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* |
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* This is an implementation of the Template Method Patttern |
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* (https://en.wikipedia.org/wiki/Template_method_pattern). |
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*/ |
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abstract class AbstractRequester |
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{ |
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protected $method = 'get'; |
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protected $path = '/'; |
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protected $requestHeader = []; |
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protected $query = []; |
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protected $requestBody = null; |
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/** |
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* @var Schema |
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*/ |
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protected $schema = null; |
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protected $statusExpected = 200; |
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protected $assertHeader = []; |
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public function __construct() |
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{ |
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} |
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/** |
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* abstract function to be implemented by derived classes |
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* |
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* This function must be implemented by derived classes. It should process |
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* the given request and return an according response. |
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* |
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* @param RequestInterface $request |
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* @return ResponseInterface |
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*/ |
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abstract protected function handleRequest(RequestInterface $request); |
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/** |
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* @param Schema $schema |
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* @return $this |
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*/ |
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public function withSchema($schema) |
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{ |
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$this->schema = $schema; |
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return $this; |
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} |
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/** |
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* @return bool |
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*/ |
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public function hasSchema() |
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{ |
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return !empty($this->schema); |
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} |
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/** |
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* @param string $method |
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* @return $this |
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*/ |
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public function withMethod($method) |
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{ |
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$this->method = $method; |
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return $this; |
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} |
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/** |
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* @param string $path |
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* @return $this |
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*/ |
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public function withPath($path) |
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{ |
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$this->path = $path; |
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return $this; |
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} |
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/** |
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* @param array $requestHeader |
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* @return $this |
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*/ |
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public function withRequestHeader($requestHeader) |
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{ |
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if (is_null($requestHeader)) { |
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$this->requestHeader = []; |
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return $this; |
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} |
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$this->requestHeader = array_merge($this->requestHeader, $requestHeader); |
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return $this; |
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} |
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/** |
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* @param array $query |
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* @return $this |
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*/ |
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public function withQuery($query) |
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{ |
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if (is_null($query)) { |
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$this->query = []; |
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return $this; |
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} |
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$this->query = array_merge($this->query, $query); |
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return $this; |
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} |
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/** |
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* @param null $requestBody |
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* @return $this |
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*/ |
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public function withRequestBody($requestBody) |
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{ |
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$this->requestBody = $requestBody; |
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return $this; |
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} |
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public function assertResponseCode($code) |
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{ |
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$this->statusExpected = $code; |
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return $this; |
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} |
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public function assertHeaderContains($header, $contains) |
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{ |
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$this->assertHeader[$header] = $contains; |
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return $this; |
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} |
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/** |
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* @return mixed |
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* @throws Exception\DefinitionNotFoundException |
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* @throws Exception\HttpMethodNotFoundException |
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* @throws Exception\InvalidDefinitionException |
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* @throws Exception\PathNotFoundException |
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* @throws GuzzleException |
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* @throws NotMatchedException |
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* @throws StatusCodeNotMatchedException |
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*/ |
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public function send() |
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{ |
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// Preparing Parameters |
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$paramInQuery = null; |
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if (!empty($this->query)) { |
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$paramInQuery = '?' . http_build_query($this->query); |
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} |
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// Preparing Header |
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if (empty($this->requestHeader)) { |
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$this->requestHeader = []; |
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} |
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$header = array_merge( |
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[ |
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'Accept' => 'application/json' |
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], |
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$this->requestHeader |
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); |
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// Defining Variables |
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$serverUrl = $this->schema->getServerUrl(); |
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$basePath = $this->schema->getBasePath(); |
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$pathName = $this->path; |
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// Check if the body is the expected before request |
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$bodyRequestDef = $this->schema->getRequestParameters("$basePath$pathName", $this->method); |
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$bodyRequestDef->match($this->requestBody); |
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// Make the request |
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$request = new Request( |
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$this->method, |
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$serverUrl . $pathName . $paramInQuery, |
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$header, |
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json_encode($this->requestBody) |
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); |
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$statusReturned = null; |
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try { |
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$response = $this->handleRequest($request); |
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$responseHeader = $response->getHeaders(); |
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$responseBody = json_decode((string) $response->getBody(), true); |
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$statusReturned = $response->getStatusCode(); |
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} catch (BadResponseException $ex) { |
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$responseHeader = $ex->getResponse()->getHeaders(); |
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$responseBody = json_decode((string) $ex->getResponse()->getBody(), true); |
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$statusReturned = $ex->getResponse()->getStatusCode(); |
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} |
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// Assert results |
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if ($this->statusExpected != $statusReturned) { |
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throw new StatusCodeNotMatchedException( |
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"Status code not matched $statusReturned", |
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$responseBody |
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); |
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} |
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$bodyResponseDef = $this->schema->getResponseParameters( |
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"$basePath$pathName", |
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$this->method, |
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$this->statusExpected |
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); |
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$bodyResponseDef->match($responseBody); |
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if (count($this->assertHeader) > 0) { |
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foreach ($this->assertHeader as $key => $value) { |
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if (!isset($responseHeader[$key]) || strpos($responseHeader[$key][0], $value) === false) { |
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throw new NotMatchedException( |
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"Does not exists header '$key' with value '$value'", |
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$responseHeader |
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); |
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} |
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} |
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} |
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return $responseBody; |
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} |
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} |
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