---
title: "RequestMiddlewares.php"
manual: "TYPO3 Explained"
version: "11.5"
permalink: "https://docs.typo3.org/permalink/t3coreapi:extension-configuration-requestmiddlewares-php@11.5"
source: "ExtensionArchitecture/FileStructure/Configuration/RequestMiddlewaresPhp.rst"
rendered: "2026-10-21T15:30:00+00:00"
---

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# `RequestMiddlewares.php` {#extension-configuration-requestmiddlewares-php}

Full path to this file is: `Configuration/RequestMiddlewares.php`.

Configuration of user-defined middlewares for frontend and backend. Extensions
that add middlewares or disable existing middlewares configure them in this
file. The file must return an array with the configuration.

See [Configuring middlewares](https://docs.typo3.org/permalink/t3coreapi:request-handling-configuring-middlewares@11.5)
for details.

**EXT:some_extension/Configuration/RequestMiddlewares.php**

```php
return [
    'frontend' => [
        'middleware-identifier' => [
            'target' => \Vendor\SomeExtension\Middleware\ConcreteClass::class,
            'before' => [
                'another-middleware-identifier',
            ],
            'after' => [
                'yet-another-middleware-identifier',
            ],
        ],
    ],
    'backend' => [
        'middleware-identifier' => [
            'target' => \Vendor\SomeExtension\Middleware\AnotherConcreteClass::class,
            'before' => [
                'another-middleware-identifier',
            ],
            'after' => [
                'yet-another-middleware-identifier',
            ],
        ],
    ],
];
```