How to use JWT in a Yii2 project?

Question

How to use JWT in a Yii2 project?

In my REST API, I want to use JWT for authorization.

So, I enable this extension - https://github.com/sizeg/yii2-jwt

How can I understand how to create a JWT token, but how to check the token in the API? Heart, I have to use two tokens - auth_token and refresh_token. For what? What makes me different when I validate and validate a user?

I mean - well, when I get the username and password, I create auth_token (JWT) and update the token in the user database, after I return the token to the interface.

After the interface sends an authorization token in each request, I will check the token and check the user in the user database and check access, etc. How to implement an update token and why?

For example, my controller:

class UploadController extends Controller {

    public $serializer = [
        'class' => 'yii\rest\Serializer',
        'collectionEnvelope' => 'items',
    ];

    public function behaviors()
    {
        $behaviors = parent::behaviors();

        $behaviors['authenticator'] = [
            'class' => JwtHttpBearerAuth::className()
        ];

        return $behaviors;
    }

    public function actionIndex() {

       //Work with User
    }
}