Expressive and PSR-15 interfaces for HTTP middleware

InteropHttpMiddleware.php

<?php

namespace App\Middleware;

use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Interop\Http\Middleware\ServerMiddlewareInterface;
use Interop\Http\Middleware\DelegateInterface;

/**
 * HTTP Middleware
 * 
 * PSR-15 interfaces for HTTP middleware.
 */
class MyMiddleware implements ServerMiddlewareInterface
{
    public function __construct()
    {
    }
  
    /**
     * @param Request           $request
     * @param DelegateInterface $delegate
     *
     * @return Response
     */
    public function process(ServerRequestInterface $request, DelegateInterface $delegate): ResponseInterface
    {
        // Do something (with the request) first
      
        // Call the next middleware and wait for the response
        $response = $delegate->process($request);
      
        // Do something (with the response) before returning the response
      
        // Return the response
        return $response;
    }
}