How to create a popup form?

Question

Yii

Can you please tell me how to create an ajax form in a popup on a page?
There is a controller

public function actionIndex()
    {
            $form = new MyForm();
            if ($form->load(Yii::$app->request->post()) && $form->save()) {
                return true;
            } else {
                return $form->getFirstError('field');
            }

            return $this->render('index');
    }

How to make it right in the controller so that the page is loaded and the form receives an ajax response?

Answer 1

Here's someone straight for you washed down)) https://github.com/borodulin/yii2-modal-form