phpdot/container-swoole

Swoole context provider and per-request dispatcher for phpdot/container

v1.3.1 2026-06-30 23:28 UTC

Requires

• php: >=8.4
• ext-swoole: >=6.2
• phpdot/container: ^1.9
• phpdot/contracts: ^1.5
• psr/container: ^1.1 || ^2.0
• psr/http-message: ^2.0
• psr/http-server-handler: ^1.0

Requires (Dev)

• friendsofphp/php-cs-fixer: ^3.0
• phpstan/phpstan: ^2.0
• phpstan/phpstan-strict-rules: ^2.0
• phpunit/phpunit: ^11.0
• swoole/ide-helper: ^6.0

MIT

Published on Packagist.org on 2026-06-30 23:28 UTC

README

Swoole adapter for phpdot/container.

Each Swoole coroutine gets its own isolated service scope via Coroutine::getContext(). When the coroutine exits, Swoole destroys the context automatically — no manual cleanup required.

Installation

composer require phpdot/container-swoole

Usage

use PHPdot\Container\ContainerBuilder;
use PHPdot\Container\Swoole\SwooleContextProvider;
use function PHPdot\Container\singleton;
use function PHPdot\Container\scoped;

$container = (new ContainerBuilder())
    ->withContextProvider(new SwooleContextProvider())
    ->addDefinitions([
        // Shared across all coroutines
        Router::class  => singleton(),
        Redis::class   => singleton(),

        // Isolated per coroutine — fresh for each request
        Session::class       => scoped(),
        SignalManager::class => scoped(),
    ])
    ->build();

How It Works

┌──────────────────────────────────────────────────────────┐
│ Swoole Worker                                            │
│                                                          │
│  Singletons (shared)                                     │
│  ┌────────────────────────────────────────────────────┐  │
│  │  Router       Redis       Config      LogBridge    │  │
│  └────────────────────────────────────────────────────┘  │
│                                                          │
│  Coroutine 1              Coroutine 2                    │
│  ┌──────────────────┐    ┌──────────────────┐           │
│  │ Session (User A)  │    │ Session (User B)  │           │
│  │ Signal (trace-1)  │    │ Signal (trace-2)  │           │
│  └──────────────────┘    └──────────────────┘           │
│    auto-destroyed           auto-destroyed               │
│    on coroutine exit        on coroutine exit             │
└──────────────────────────────────────────────────────────┘

Singleton services resolve once and are shared across all coroutines in the worker.

Scoped services resolve once per coroutine and are stored in Swoole\Coroutine::getContext(). When the coroutine finishes, Swoole's runtime destroys the context and all scoped instances are garbage collected.

Outside a coroutine (CLI bootstrap, onStart callback), the provider falls back to an in-memory ArrayContext.

Server Example

use Swoole\Http\Server;
use PHPdot\Container\ContainerBuilder;
use PHPdot\Container\Swoole\SwooleContextProvider;
use function PHPdot\Container\singleton;
use function PHPdot\Container\scoped;

$container = (new ContainerBuilder())
    ->withContextProvider(new SwooleContextProvider())
    ->addDefinitions([
        Config::class  => singleton(),
        Session::class => scoped(fn($c) => Session::fromRequest($c->get(Request::class))),
    ])
    ->build();

$server = new Server('0.0.0.0', 8080);

$server->on('request', function ($req, $res) use ($container) {
    // Each request runs in its own coroutine.
    // Scoped services are fresh. Singletons are shared.
    $session = $container->get(Session::class);

    $res->end('Hello ' . $session->user());
    // Coroutine ends here — scoped instances destroyed automatically.
});

$server->start();

Request dispatching

ContainerDispatcher is a PSR-15 handler that resolves your real handler from the container on every request — inside the worker, after the fork. Serve it instead of the handler itself so the request path loads lazily (which keeps it hot-reloadable) and scoped services isolate per coroutine:

use PHPdot\Container\Swoole\ContainerDispatcher;

// $container built as above; App\Handler is your PSR-15 entry point.
$dispatcher = new ContainerDispatcher($container, App\Handler::class);

// Hand $dispatcher to your PSR-15 server (e.g. phpdot/server-swoole's serve()).
// On each request it calls $container->get(App\Handler::class) — resolving,
// and loading, in the worker.

If the configured id doesn't resolve to a Psr\Http\Server\RequestHandlerInterface, it throws — a fast failure for a misconfigured handler id.

Requirements

• PHP >= 8.3
• ext-swoole >= 5.0
• phpdot/container ^1.0

License

MIT