TYPO3 12 and later use request attributes to store internal informations. How does it work to add self defined attributes in TYPO3 extensions? I could not find anything in the docs.

Request Attributes

TYPO3/typo3_src-13.2.1/typo3/sysext/core/Classes/Http/ServerRequest.php:

namespace TYPO3\CMS\Core\Http;

class ServerRequest extends Request implements ServerRequestInterface
{
    protected array $attributes = [];

TYPO3 12 and later use request attributes to store internal informations. How does it work to add self defined attributes in TYPO3 extensions? I could not find anything in the docs.

Request Attributes

TYPO3/typo3_src-13.2.1/typo3/sysext/core/Classes/Http/ServerRequest.php:

namespace TYPO3\CMS\Core\Http;

class ServerRequest extends Request implements ServerRequestInterface
{
    protected array $attributes = [];

• attributes
• typo3

Share Improve this question Follow asked Nov 15, 2024 at 19:40 Franz HolzingerFranz Holzinger 9981111 silver badges2424 bronze badges 1

• This is a replacement for: Breaking: #102600 TSFE->applicationData removed – Franz Holzinger Commented Nov 20, 2024 at 17:05

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2 Answers 2

Sorted by: Reset to default 2

You can use a PSR-15 Middleware to achive that.

All you need is a Middleware class like:

Classes/Middleware/RequestEnrichingMiddleware.php

<?php

declare(strict_types=1);

namespace VENDOR\ExtName\Middleware;

use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;

class RequestEnrichingMiddleware implements MiddlewareInterface
{

    public function process(
        ServerRequestInterface $request,
        RequestHandlerInterface $handler,
    ): ResponseInterface {

        $myCustomDataArray = [
            'Foo' => 'Bar',
            'Foooo' => 'Baar',
        ];

        $request = $request->withAttribute('myCustomDataArray', $myCustomDataArray);

        return $handler->handle($request);
    }
}

And then you must register this middleware in: Configuration/RequestMiddlewares.php

<?php

return [
    'frontend' => [
        'vendor/my-middleware-identifier' => [
            'target' => \VENDOR\ExtName\Middleware\RequestEnrichingMiddleware::class,
            'after' => [
                'typo3/cms-core/response-propagation',
            ],
        ],
    ],
];

For more information see:
https://docs.typo3./m/typo3/reference-coreapi/main/en-us/ApiOverview/RequestLifeCycle/Middlewares.html#enriching-the-request

You can use withAttribute in PSR middlewares to enrich the request. This isn't really TYPO3 specific, but a general PSR approach. See:

https://docs.typo3./m/typo3/reference-coreapi/main/en-us/ApiOverview/RequestLifeCycle/Middlewares.html#enriching-the-request

You can set/get any attribute (don't use a name that TYPO3 already uses though).