Przykład implementacji w języku PHP
Tworzymy interface serwisu, który będzie odpowiedzialny za pobranie bearer access token.
<?php declare(strict_types=1); namespace Iteo\InpostPayClient\Client; use Iteo\InpostPayClient\SDK\Core\Exceptions\InpostPayEndpointException; /** * Interface used for creating bearer token, needed to communication with Inpost Pay. */ interface InpostPayBearerServiceInterface { /** * Method that creating bearer access token for given merchant credentials. * * @return string Bearer access token * * @throws InpostPayEndpointException */ public function getBearerToken(): string; }
Tworzymy exception, który będziemy zwracali w przypadku niepowodzenia pobrania tokenu.
<?php declare(strict_types=1); namespace Iteo\InpostPayClient\SDK\Core\Exceptions; class InpostPayEndpointException extends \Exception { final public function __construct(string $message = '', int $code = 0, \Throwable $previous = null) { parent::__construct($message, $code, $previous); } public static function createClientException(\Throwable $throwable): self { return new static( sprintf('InpostPayClient, error occurred when creating http client with bearer token. Exception message: %s', $throwable->getMessage()), $throwable->getCode(), $throwable ); } }
Tworzymy implementację serwisu, który pobiera access token przy użyciu metody getBearerToken.
<?php declare(strict_types=1); namespace Iteo\InpostPayClient\Client; use League\OAuth2\Client\Provider\Exception\IdentityProviderException; use League\OAuth2\Client\Provider\GenericProvider; use Iteo\InpostPayClient\SDK\Core\Exceptions\InpostPayEndpointException; /** * PHP Bearer Service implementation used for creating bearer token, needed to communication with Inpost Pay. */ final class InpostPayBearerService implements InpostPayBearerServiceInterface { private string $clientId; private string $clientSecret; private string $urlAccessToken; private ?string $urlAuthorize; private ?string $urlResourceOwnerDetails; //Zamienić w zależności od środowiska private const URL_ACCESS_TOKEN = 'https://sandbox-login.inpost.pl/auth/realms/external/protocol/openid-connect/token'; public function __construct(string $clientId, string $clientSecret, string $urlAccessToken = self::URL_ACCESS_TOKEN, string $urlAuthorize = null, string $urlResourceOwnerDetails = null) { $this->clientId = $clientId; $this->clientSecret = $clientSecret; $this->urlAccessToken = $urlAccessToken; $this->urlAuthorize = $urlAuthorize; $this->urlResourceOwnerDetails = $urlResourceOwnerDetails; } /** * {@inheritdoc} */ public function getBearerToken(): string { $provider = new GenericProvider([ 'clientId' => $this->clientId, 'clientSecret' => $this->clientSecret, 'urlAuthorize' => $this->urlAuthorize, 'urlAccessToken' => $this->urlAccessToken, 'urlResourceOwnerDetails' => $this->urlResourceOwnerDetails, ]); try { return $provider->getAccessToken('client_credentials')->getToken(); } catch (IdentityProviderException $exception) { throw InpostPayEndpointException::createClientException($exception); } } }
W celu wykorzystania OAuth2.0 użyta została biblioteka: https://packagist.org/packages/league/oauth2-client?query=https%3A%2F%2Fpackagist.org%2Fpackages%2Fleague%2Foauth2-client%3Ftype%3Dcontao-module%26page%3D40&type=contao-module#2.7.0