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<?php |
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namespace Srmklive\PayPal\Traits; |
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use GuzzleHttp\Client as HttpClient; |
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use GuzzleHttp\Exception\BadResponseException as HttpBadResponseException; |
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use GuzzleHttp\Exception\ClientException as HttpClientException; |
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use GuzzleHttp\Exception\ServerException as HttpServerException; |
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trait PayPalHttpClient |
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{ |
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/** |
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* Set curl constants if not defined. |
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* |
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* @return void |
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*/ |
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protected function setCurlConstants() |
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{ |
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if (!defined('CURLOPT_SSLVERSION')) { |
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define('CURLOPT_SSLVERSION', 32); |
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} |
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if (!defined('CURL_SSLVERSION_TLSv1_2')) { |
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define('CURL_SSLVERSION_TLSv1_2', 6); |
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} |
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if (!defined('CURLOPT_SSL_VERIFYPEER')) { |
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define('CURLOPT_SSL_VERIFYPEER', 64); |
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} |
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if (!defined('CURLOPT_SSLCERT')) { |
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define('CURLOPT_SSLCERT', 10025); |
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} |
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} |
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/** |
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* Function to initialize Http Client. |
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* |
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* @return void |
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*/ |
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protected function setClient() |
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{ |
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$this->client = new HttpClient([ |
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'curl' => $this->httpClientConfig, |
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]); |
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} |
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/** |
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* Function to set Http Client configuration. |
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* |
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* @return void |
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*/ |
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protected function setHttpClientConfiguration() |
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{ |
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$this->defineCurlConstants(); |
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$this->httpClientConfig = [ |
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CURLOPT_SSLVERSION => CURL_SSLVERSION_TLSv1_2, |
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CURLOPT_SSL_VERIFYPEER => $this->validateSSL, |
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]; |
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if (!empty($this->certificate)) { |
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$this->httpClientConfig[CURLOPT_SSLCERT] = $this->certificate; |
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} |
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// Initialize Http Client |
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$this->setClient(); |
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// Set default values. |
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$this->setDefaultValues(); |
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// Set PayPal API Endpoint. |
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$this->apiUrl = $this->config['api_url']; |
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// Set PayPal IPN Notification URL |
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$this->notifyUrl = $this->config['notify_url']; |
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} |
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/** |
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* Perform PayPal API request & return response. |
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* |
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* @throws \Exception |
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* |
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* @return \Psr\Http\Message\StreamInterface |
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*/ |
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private function makeHttpRequest() |
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{ |
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try { |
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return $this->client->post($this->apiUrl, [ |
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$this->httpBodyParam => $this->post->toArray(), |
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])->getBody(); |
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} catch (HttpClientException $e) { |
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throw new \Exception($e->getRequest().' '.$e->getResponse()); |
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} catch (HttpServerException $e) { |
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throw new \Exception($e->getRequest().' '.$e->getResponse()); |
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} catch (HttpBadResponseException $e) { |
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throw new \Exception($e->getRequest().' '.$e->getResponse()); |
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} |
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} |
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/** |
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* Function To Perform PayPal API Request. |
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* |
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* @param string $method |
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* |
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* @throws \Exception |
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* |
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* @return array|\Psr\Http\Message\StreamInterface |
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*/ |
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private function doPayPalRequest($method) |
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{ |
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// Setup PayPal API Request Payload |
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$this->createRequestPayload($method); |
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try { |
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// Perform PayPal HTTP API request. |
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$response = $this->makeHttpRequest(); |
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return $this->retrieveData($method, $response); |
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} catch (\Exception $e) { |
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$message = collect($e->getTrace())->implode('\n'); |
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} |
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return [ |
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'type' => 'error', |
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'message' => $message, |
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]; |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: