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feat(server): Rework transport architecture and add StreamableHttpTransport (#49)

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* feat(server): Rework transport architecture and add StreamableHttpTransport

- `Server::connect()` no longer contains a processing loop.
- `TransportInterface` is updated with `setMessageHandler()` and `listen()`.
- `StdioTransport` is updated to implement the new interface.
- A new, minimal `StreamableHttpTransport` is added for stateless HTTP.

* refactor(server): use  event-driven message handling

* feat(server): Introduce a formal session management system

* fix: ensure session elements are preserved when building server (regression from #46)

* refactor: consolidate HTTP example to use shared dependencies

* feat(server): Enhance message handling with session support

- Updated `TransportInterface` to use `onMessage` for handling incoming messages with session IDs.
- Refactored `Server`, `Handler`, and transport classes to accommodate session management using `Uuid`.
- Introduced methods for creating sessions with auto-generated and specific UUIDs in `SessionFactory` and `SessionFactoryInterface`.

* feat(server): Integrate session management in message handling

- Added session support to the `Server` and `Handler` classes, allowing for session data to be managed during message processing.
- Updated `TransportInterface` to include session context in the `send` method.
- Refactored various request handlers to utilize session information, ensuring proper session handling for incoming requests.
- Introduced a file-based session store for persistent session data management

* feat: Update session builder method to use set* instead of with*

* feat: Fix test compatibility with new session management architecture

* chore: apply code style fixes

* fix: remove deprecated SSE transport and resolve PHPStan issues
This commit is contained in:
Kyrian Obikwelu 2025-09-21 11:12:40 +01:00 • committed by GitHub
commit 719262b15d
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25
examples/08-schema-showcase-streamable/server.php
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@ -13,16 +13,29 @@
require_once dirname(__DIR__).'/bootstrap.php';
chdir(__DIR__);
use Laminas\HttpHandlerRunner\Emitter\SapiEmitter;
use Mcp\Server;
use Mcp\Server\Transports\StreamableHttpServerTransport;
use Mcp\Server\Session\FileSessionStore;
use Mcp\Server\Transport\StreamableHttpTransport;
use Nyholm\Psr7\Factory\Psr17Factory;
use Nyholm\Psr7Server\ServerRequestCreator;
logger()->info('Starting MCP Schema Showcase Server...');
$psr17Factory = new Psr17Factory();
$creator = new ServerRequestCreator($psr17Factory, $psr17Factory, $psr17Factory, $psr17Factory);
Server::make()
$request = $creator->fromGlobals();
$server = Server::make()
->setServerInfo('Schema Showcase', '1.0.0')
->setLogger(logger())
->setSession(new FileSessionStore(__DIR__.'/sessions'))
->setDiscovery(__DIR__, ['.'])
->build()
->connect(new StreamableHttpServerTransport('127.0.0.1', 8080, 'mcp'));
->build();
logger()->info('Server listener stopped gracefully.');
$transport = new StreamableHttpTransport($request, $psr17Factory, $psr17Factory);
$server->connect($transport);
$response = $transport->listen();
(new SapiEmitter())->emit($response);