问Zend\Http\Client作为用于Zend表达的PSR-7中间件

EN

<?php

namespace App\Action;

use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Zend\Diactoros\Response\HtmlResponse;
use Zend\Expressive\Template\TemplateRendererInterface;

class ViewUserAction implements MiddlewareInterface
{
    private $template;

    private $userRepository;

    public function __construct(
        TemplateRendererInterface $template,
        UserRepository $userRepository
    ) {
        $this->template       = $template;
        $this->userRepository = $userRepository;
    }

    public function __invoke(Request $request, Response $response, callable $out = null)
    {
        $id   = (int) $request->getAttribute('id');
        $user = $this->userRepository->find($id);
        if (!$user) {
            return $out($request, $response->withStatus(404), 'Not found');
        }

        return new HtmlResponse($this->template->render('template', [
            'user' => $user,
        ]));
    }
}