annikaC

<?php

namespace Drupal\yourmodule\Controller;

use Drupal\Core\Controller\ControllerBase;

use Symfony\Component\HttpFoundation\RedirectResponse;

/**
 * A controller that redirects to the current user's edit account page.

signalpoint

<?php

// ...

use Symfony\Component\HttpFoundation\Response;

// Then later on (inside your controller's class), you have a function used
// for the route_name (on a hook_menu() item in your .module file), this
// function can return a JSON response...