---
application: "Intervention Validation"
version: "Version 4"
status: "stable"
---

# JWT Rule

## Validate a JSON Web Token

Learn how to validate the JSON Web Token format with the additional validation rules of Intervention Validation for your Laravel application.

> public Intervention\Validation\Rules\Jwt::__construct()

The value under validation must be in the format of a [JSON Web Token](https://en.wikipedia.org/wiki/JSON_Web_Token).

### Parameters

none

### Example

```php
use Illuminate\Support\Facades\Validator;
use Intervention\Validation\Rules\Jwt;

$validator = Validator::make($request->all(), [
    'attribute-key' => new Jwt(),
]);
```

---

## Become a Sponsor

### Intervention Validation needs your help to keep the project going

Intervention Validation is non-commercial, open source licensed and completely free to use. The considerable
effort required to maintain and develop the software is only possible with the financial support
of sponsors. There are two ways in which you can support this project.

- Support via [GitHub Sponsors](https://github.com/sponsors/Intervention)
- Support via [Ko-Fi](https://ko-fi.com/interventionphp)