Redirect after submitting the form. Using custom action and dynamic data (output php echo) in url

How To
1

I have a form with which I get a token through a custom action to authorize an API on another site.

Here’s what the custom token get function looks like:

function my_form_custom_action( $form ) {  
  $form_data = $form->get_fields();
  $login = urlencode($form_data['form-field-smtqfu']);
  $password = urlencode($form_data['form-field-crfygb']);

  $api_url = 'https://auth.multi.garveks.ru/api/Authenticate/Authenticate?Email=' . $login . '&Password=' . $password;

  $response = wp_remote_post( $api_url, array(
      'method' => 'POST',
      'timeout' => 45,
      'redirection' => 5,
      'httpversion' => '1.0',
      'blocking' => true,
      'headers' => array(),
      'body' => array(),
      'cookies' => array()
      )
  );

  if ( is_wp_error( $response ) ) {
    $error_message = $response->get_error_message();
    $form->set_result([
        'action' => 'my_custom_action',
        'type'    => 'danger',
        'message' => esc_html__('Ошибка: ' . $error_message, 'bricks'),
    ]);
  } else {
    $response_body = json_decode( wp_remote_retrieve_body( $response ), true );
    if ( $response_body['succeeded'] ) {
      $access_token = $response_body['data']['accessToken'];
      $redirect_url = 'https://multi.garveks.ru?token=' . $access_token;
      
      $form->set_result([
        'action' => 'my_custom_action',
        'type'    => 'info',
        'message' => esc_html__('Ответ: ' . $access_token, 'bricks'),
      ]);

      $form->set_result(
				[
					'action'          => 'my_custom_action',
					'type'            => 'redirect',
					'redirectTo'      => $redirect_url,
				]
			);

      
      return $access_token;

    } else {
        $form->set_result([
            'action' => 'my_custom_action',
            'type'    => 'danger',
            'message' => esc_html__('Ошибка: ' . var_dump($response_body), 'bricks'),
          ]);
        }
  }

}

add_action( 'bricks/form/custom_action', 'my_form_custom_action', 10, 1 );

I write the custom action code in function.php

And it works well. If I enter valid data, it prints out a message with a token.

Next, I want to make a redirect, I include an additional action (redirect) in the brick constructor. Next, in the url field, I enter the address of the site of the form (Мультисервис) At the end of this address, I want to substitute the token from the custom function. I add the structure like this (Мультисервис)

But after sending, I get a positive response, a redirect occurs, but at the end of the address it still says {echo: my_form_custom_action}

echo does not print the return value of the function. Although in case of success in the code I write return $access_token?

I thought, maybe the redirect happens faster than the function code works??

I just want to hook to the bricks builder redirect event with my value in the url. Thx