Drupal 8 redirect user to own user edit page (for use in menu links)

AccountEditRedirectController.php

<?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.
 */
class AccountEditRedirectController extends ControllerBase {

  /**
   * Redirect to
   */
  public function redirect_to_account_edit() {
    global $base_url;

    $path = \Drupal\Core\Url::fromRoute('entity.user.edit_form', ['user' => \Drupal::currentUser()->id()])->toString();

    $response = new RedirectResponse($base_url . $path);
    $response->send();
  }

}

hnip_menu.routing.yml

yourmodule.account_edit_redirect:
  path: '/user/me/edit'
  defaults:
    _controller: '\Drupal\yourmodule\Controller\AccountEditRedirectController::redirect_to_account_edit'
  requirements:
    _role: 'authenticated'

I couldn't get this to work, primarily because I'm working in a subdirectory. In my case,

$path = /test/web/user/1/edit and 
global $base_url = http://dev.kinetasystems.com/test/web

but global $base_root = http://dev.kinetasystems.com so I suspect the correct approach is $response = new RedirectResponse($base_root . $path);, having declared the appropriate global @annikaC?

Also while I'm looking throught this stuff, I think it would be better to validate the route using _user_is_logged_in: 'TRUE' rather than just the role, which could be confused.

Also as per https://drupal.stackexchange.com/questions/146185/how-to-create-a-redirection-in-drupal-8 - you need to return the response object not whatever that is. Otherwise you get

LogicException: The controller must return a response (null given). Did you forget to add a return statement somewhere in your controller?

    // $response->send();
    // return;
    return $response;

If you're redirecting to routes, you can utilize the $this->redirect() method. Then you don't work with URLs and don't need to trreat the base_url.

public function redirect_to_account_edit() {
    $route_name = 'entity.user.edit_form';
    $route_parameters = [
      'user' => \Drupal::currentUser()->id(),
    ];

    return $this->redirect($route_name, $route_parameters);
}

This works! ⬆️

I had totally forgotten about this gist! Thanks for commenting with your updates :)