PHP code example of toppy / symfony-async-twig-bundle

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

toppy / symfony-async-twig-bundle example snippets

// config/bundles.php
return [
    // ...
    Toppy\SymfonyAsyncTwigBundle\ToppySymfonyAsyncTwigBundle::class => ['all' => true],
];

namespace App\ViewModel;

use Toppy\AsyncViewModel\AsyncViewModel;
use Toppy\AsyncViewModel\Context\RequestContext;
use Toppy\AsyncViewModel\Context\ViewContext;

final class ProductStockViewModel implements AsyncViewModel
{
    public function __construct(
        private readonly StockService $stockService,
    ) {}

    public function resolve(ViewContext $viewContext, RequestContext $requestContext): mixed
    {
        $productId = $requestContext->get('product_id');
        return $this->stockService->getStock($productId);
    }
}

// AsyncViewModel implementations are auto-tagged
$container->registerForAutoconfiguration(AsyncViewModel::class)
    ->addTag('toppy.async_view_model');

// EarlyHintsProvider implementations are auto-tagged
$container->registerForAutoconfiguration(EarlyHintsProviderInterface::class)
    ->addTag('toppy.early_hints_provider');

namespace App\ViewModel;

use Toppy\AsyncViewModel\AsyncViewModel;

// This class is auto-tagged with 'toppy.async_view_model'
final class MyViewModel implements AsyncViewModel
{
    // ...
}

use Toppy\AsyncViewModel\WithDependencies;

final class OrderTotalsViewModel implements AsyncViewModel, WithDependencies
{
    public static function getDependencies(): array
    {
        return [
            CartItemsViewModel::class,
            ShippingCostViewModel::class,
        ];
    }

    // Dependencies are resolved first, then this view model
}

use Symfony\Component\HttpFoundation\StreamedResponse;
use Toppy\TwigStreaming\Twig\StreamingTemplateRendererInterface;

final class ProductController
{
    public function __construct(
        private readonly StreamingTemplateRendererInterface $renderer,
    ) {}

    public function show(int $id): StreamedResponse
    {
        return new StreamedResponse(
            $this->renderer->stream('product/show.html.twig', [
                'product_id' => $id,
            ])
        );
    }
}

use Twig\Environment;

final class ProductController
{
    public function show(int $id, Environment $twig): Response
    {
        return new Response(
            $twig->render('product/show.html.twig', ['product_id' => $id])
        );
    }
}

// ViewContext contains user/session state
$viewContext = $contextFactory->createViewContext();
// - currency: from session or 'EUR'
// - locale: from request locale
// - isB2B: from session
// - isVatExempt: from session
// - customerGroup: from session

// RequestContext contains route parameters
$requestContext = $contextFactory->createRequestContext(['extra' => 'param']);
// - params: merged from _route_params + additional
// - requestId: unique identifier for this request

// Automatically reset between requests in worker mode
$contextResolver->reset();

use Toppy\AsyncViewModel\Cache\CacheableViewModel;

final class ExpensiveViewModel implements AsyncViewModel, CacheableViewModel
{
    public function getCacheTtl(): int
    {
        return 300; // Fresh for 5 minutes
    }

    public function getStaleWhileRevalidate(): int
    {
        return 600; // Serve stale for 10 more minutes while revalidating
    }

    public function getCacheTags(RequestContext $context): array
    {
        return ['product:' . $context->get('product_id')];
    }
}

use Toppy\TwigStreaming\EarlyHints\EarlyHintsProviderInterface;

final class CustomEarlyHintsProvider implements EarlyHintsProviderInterface
{
    public function getHints(): array
    {
        return [
            [
                'rel' => 'preload',
                'href' => '/assets/critical.css',
                'attributes' => ['as' => 'style'],
            ],
        ];
    }
}