Created
April 18, 2023 14:13
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Adapter for `stripe/stripe-php` library to be able to use a PSR-18 HTTP Client
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<?php | |
declare(strict_types=1); | |
namespace App\Stripe\HttpClient; | |
use Psr\Http\Client\ClientExceptionInterface; | |
use Psr\Http\Client\ClientInterface as PsrClientInterface; | |
use Psr\Http\Message\RequestFactoryInterface; | |
use Psr\Http\Message\RequestInterface; | |
use Psr\Http\Message\ResponseInterface; | |
use Psr\Http\Message\StreamFactoryInterface; | |
use Stripe\Exception\ApiConnectionException; | |
use Stripe\HttpClient\ClientInterface; | |
use Stripe\HttpClient\StreamingClientInterface; | |
use Stripe\Util\Util; | |
final class PsrHttpClient implements ClientInterface, StreamingClientInterface | |
{ | |
public function __construct( | |
private PsrClientInterface $httpClient, | |
private RequestFactoryInterface $requestFactory, | |
private StreamFactoryInterface $streamFactory, | |
private int $chunkSize = 8192, | |
) { | |
} | |
public function request($method, $absUrl, $headers, $params, $hasFile): array | |
{ | |
$request = $this->constructRequest($method, $absUrl, $headers, $params, $hasFile); | |
$response = $this->sendRequest($request); | |
return $this->prepareReturnedResponse($response); | |
} | |
public function requestStream($method, $absUrl, $headers, $params, $hasFile, $readBodyChunkCallable): array | |
{ | |
$request = $this->constructRequest($method, $absUrl, $headers, $params, $hasFile); | |
$response = $this->sendRequest($request); | |
$body = $response->getBody(); | |
$body->rewind(); | |
while (false === $body->eof()) { | |
$buf = $body->read($this->chunkSize); | |
$readBodyChunkCallable($buf); | |
} | |
return $this->prepareReturnedResponse($response); | |
} | |
/** | |
* @param string[] $headers | |
*/ | |
private function constructRequest(string $method, string $absUrl, array $headers, array $params, bool $hasFile): RequestInterface | |
{ | |
$params = Util::objectsToIds($params); | |
$request = $this->requestFactory->createRequest($method, $absUrl); | |
$encodeParameters = Util::encodeParameters($params); | |
if ('post' === $method) { | |
$bodyStream = $this->streamFactory->createStream($encodeParameters); | |
$request = $request->withBody($bodyStream); | |
} else { | |
$uri = $request->getUri()->withQuery($encodeParameters); | |
$request = $request->withUri($uri); | |
} | |
foreach ($headers as $header) { | |
$headerValue = preg_replace('#^[^:]+:\s*#', '', $header); | |
$headerName = preg_replace('#:.+$#', '', $header); | |
$request = $request->withHeader($headerName, $headerValue); | |
} | |
// @todo see if this is still necessary, maybe it can be handle inside an HttpClient plugin (see HTTPlug) | |
// It is only safe to retry network failures on POST requests if we add an Idempotency-Key header | |
/*if (('post' === $method) && (Stripe::$maxNetworkRetries > 0) && !$request->hasHeader('Idempotency-Key')) { | |
$request = $request->withHeader('Idempotency-Key', $this->randomGenerator->uuid()); | |
}*/ | |
return $request; | |
} | |
protected function sendRequest(RequestInterface $request): ResponseInterface | |
{ | |
try { | |
$response = $this->httpClient->sendRequest($request); | |
} catch (ClientExceptionInterface $e) { | |
throw new ApiConnectionException( | |
$e->getMessage(), | |
$e->getCode(), | |
$e, | |
); | |
} | |
return $response; | |
} | |
protected function prepareReturnedResponse(ResponseInterface $response): array | |
{ | |
$responseHeaders = []; | |
foreach ($response->getHeaders() as $name => $values) { | |
foreach ($values as $value) { | |
$responseHeaders[$name] = $value; | |
} | |
} | |
return [ | |
$response->getBody()->__toString(), | |
$response->getStatusCode(), | |
$responseHeaders, | |
]; | |
} | |
} |
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