Twig View middleware invokable class to add common attributes to Slim's Twig View

ViewMiddleware.php

<?php

namespace App\Middleware;

use Psr\Http\Message\ServerRequestInterface as Request;
use Psr\Http\Message\ResponseInterface as Response;
use Slim\Views\Twig as View;

class ViewMiddleware
{
    protected $view;

    public function __construct(View $view)
    {
        $this->view = $view;
    }

    /**
     * Twig View middleware invokable class to add common attributes to Slim's Twig View
     *
     * @param  \Psr\Http\Message\ServerRequestInterface $request  PSR7 request
     * @param  \Psr\Http\Message\ResponseInterface      $response PSR7 response
     * @param  callable                                 $next     Next middleware
     *
     * @return \Psr\Http\Message\ResponseInterface
    **/
    public function __invoke(Request $request, Response $response, $next)
    {
        $this->view['request_uri_path'] = $request->getUri()->getPath();
        $this->view['csrf'] =
            '<input type="hidden" name="csrf_name" value="' . $request->getAttribute('csrf_name') . '">'
            . '<input type="hidden" name="csrf_value" value="' . $request->getAttribute('csrf_value') . '">';

        $response = $next($request, $response);

        return $response;
    }
}