Как получить данные через rest api формате json в yii2?

namespace app\controllers;

//use yii\rest\ActiveController;
use yii\web\Response;
use Yii;
use app\models\Users;
use app\models\UsersSearch;
use yii\web\Controller;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;


class UsersController extends Controller
{
    //public $modelClass = 'app\models\Users';

    /**
     * @inheritdoc
     */
    public function behaviors()
    {
        return [
            'verbs' => [
                'class' => VerbFilter::className(),
                'actions' => [
                    'delete' => ['POST'],
                ],
            ],
        ];
    }

 public function actionIndex()
    {
        \Yii::$app->response->format = Response::FORMAT_JSON;
        $searchModel = new UsersSearch();
        $dataProvider = $searchModel->search(Yii::$app->request->queryParams);

        return $this->render('index', [
            'searchModel' => $searchModel,
            'dataProvider' => $dataProvider,
        ]);
    }

    /**
     * Displays a single Users model.
     * @param integer $id
     * @return mixed
     * @throws NotFoundHttpException if the model cannot be found
     */
    public function actionView($id)
    {
        \Yii::$app->response->format = Response::FORMAT_JSON;
        return $this->render('view', [
            'model' => $this->findModel($id),
        ]);
    }

}

'parsers' => [
                'application/json' => 'yii\web\JsonParser',
            ],

'user' => [
            'identityClass' => 'app\models\User',
            'enableAutoLogin' => true,
        ],