---
date: 2020-11-17
id: f0c76a12-b940-461d-8888-fecdab2fa971
title: Required
---

# Description

Attribute replacement for [@required](20201117112017-required).

# Syntax

``` php
use Symfony\Contracts\Service\Attribute\Required;

class SomeService
{
    #[Required]
    public Bar $bar;

    #[Required]
    public function setFoo(Foo $foo): void
    {
        // ...
    }
}
```