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<?php
namespace Softonic\OAuth2\Guzzle\Middleware;
use League\OAuth2\Client\Provider\AbstractProvider as OAuth2Provider;
use League\OAuth2\Client\Token\AccessToken;
use Psr\Http\Message\RequestInterface;
class AddAuthorizationHeader
{
const CACHE_KEY_PREFIX = 'oauth2-token-';
private $provider;
private $cacheHandler;
private $config;
public function __construct(OAuth2Provider $provider, array $config, AccessTokenCacheHandler $cacheHandler)
$this->provider = $provider;
$this->config = $config;
$this->cacheHandler = $cacheHandler;
}
public function __invoke(RequestInterface $request): RequestInterface
$token = $this->cacheHandler->getTokenByProvider($this->provider, $this->config);
if (false === $token) {
$accessToken = $this->getAccessToken();
$token = $accessToken->getToken();
$this->cacheHandler->saveTokenByProvider($accessToken, $this->provider, $this->config);
return $request->withHeader('Authorization', 'Bearer ' . $token);
private function getAccessToken(): AccessToken
$grantType = $this->getGrantType();
return $this->provider->getAccessToken($grantType, $this->config);
private function getGrantType(): string
if (empty($this->config['grant_type'])) {
throw new \InvalidArgumentException('Config value `grant_type` needs to be specified.');
return $this->config['grant_type'];
softonic /
guzzle-oauth2-middleware
