Backported Symfony features

Implement new Symfony features in older versions!

Installation

composer require yceruto/micro-symfony

Prepending Extension Config with `$container->import()`

Since Symfony 6.1, the AbstractBundle class helps you to create a bundle quickly, and one of useful feature is prepending config for other bundles or extensions:

namespace Acme\FooBundle;

use Symfony\Component\HttpKernel\Bundle\AbstractBundle;
// ...

class AcmeFooBundle extends AbstractBundle
{
    public function prependExtension(ContainerConfigurator $container, ContainerBuilder $builder): void
    {
        // prepend config from a config file
        $container->import('../config/packages/cache.yaml');
    }
}

Note

The $container->import() method support in prependExtension was implemented in Symfony 7.1, so you can remove this package from your dependencies after upgrading accordingly.

MicroKernelTrait

This class is an implementation of the base Kernel + MicroKernelTrait that allows you to create a single "one-file" application for your cloud worker, microservice, or any other small application.

// index.php

use MicroSymfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
use Symfony\Bundle\FrameworkBundle\Console\Application;
use Symfony\Component\HttpKernel\Kernel;

class StripeWebhookEventSubscriber extends Kernel
{
    use MicroKernelTrait;

    #[Route('/', methods: 'GET')]
    public function __invoke(Request $request, NotifierInterface $notifier): Response
    {
        // parse the webhook event and notify the user...
    
        return new Response('OK');
    }
}

return static function (array $context) {
    $kernel = new StripeWebhookEventSubscriber($context['APP_ENV'], (bool) $context['APP_DEBUG']);

    return \PHP_SAPI === 'cli' ? new Application($kernel) : $kernel;
};

You can use the same index.php as console application to perform the common cache clear operations or any other command you need to run.

$ php index.php cache:clear

Note

The MicroKernelTrait optional capabilities were implemented in Symfony 7.2, so you can remove this package from your dependencies after upgrading accordingly.

Server-Sent Event (SSE) Improvements

This package provides utilities to enhance working with server-sent events (SSE) in Symfony applications.

EventStreamResponse: A response object designed specifically for streaming server events.
ServerEvent: Used to construct and emit individual server events in the response.

Example Usage:

return new EventStreamResponse(function () {
    yield new ServerEvent(time(), type: 'ping');

    sleep(1);
    
    yield new ServerEvent(time(), type: 'ping');
});

Note

The EvenStreamResponse and ServerEvent are natively supported since Symfony 7.3, so you can remove this package from your dependencies after upgrading accordingly.

Upgrade Notes

All classes included in this package are registered under the MicroSymfony namespace, however, they follow the same organization that Symfony. Thus, to upgrade just remove the Micro prefix from all imported classes and everything should keep working as before.

-use MicroSymfony\Component\DependencyInjection\Extension\AbstractExtension;
+use Symfony\Component\DependencyInjection\Extension\AbstractExtension;

License

This software is published under the MIT License