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feat: add PSR-17 factory auto-discovery to HTTP transport (#119)

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Kyrian Obikwelu 2025-10-26 22:06:10 +01:00 • committed by GitHub
commit 0963d243bc
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1 changed files with 73 additions and 68 deletions
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11
src/Server/Transport/StreamableHttpTransport.php
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@ -11,6 +11,7 @@
namespace Mcp\Server\Transport;
use Http\Discovery\Psr17FactoryDiscovery;
use Mcp\Schema\JsonRpc\Error;
use Psr\Http\Message\ResponseFactoryInterface;
use Psr\Http\Message\ResponseInterface;
@ -27,6 +28,9 @@ use Symfony\Component\Uid\Uuid;
*/
class StreamableHttpTransport implements TransportInterface
{
private ResponseFactoryInterface $responseFactory;
private StreamFactoryInterface $streamFactory;
/** @var callable(string, ?Uuid): void */
private $messageListener;
@ -49,12 +53,15 @@ class StreamableHttpTransport implements TransportInterface
public function __construct(
private readonly ServerRequestInterface $request,
private readonly ResponseFactoryInterface $responseFactory,
private readonly StreamFactoryInterface $streamFactory,
?ResponseFactoryInterface $responseFactory = null,
?StreamFactoryInterface $streamFactory = null,
private readonly LoggerInterface $logger = new NullLogger(),
) {
$sessionIdString = $this->request->getHeaderLine('Mcp-Session-Id');
$this->sessionId = $sessionIdString ? Uuid::fromString($sessionIdString) : null;
$this->responseFactory = $responseFactory ?? Psr17FactoryDiscovery::findResponseFactory();
$this->streamFactory = $streamFactory ?? Psr17FactoryDiscovery::findStreamFactory();
}
public function initialize(): void