PHP code example of rnr1721 / le7-middleware

1. Go to this page and download the library: Download rnr1721/le7-middleware library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

rnr1721 / le7-middleware example snippets



use Core\RequestHandler\MiddlewareDispatcherGeneric;

        // $responseFactory is implementation of ResponseFactoryInterface
        $response = $responseFactory->createResponse(404);
        $defaultRequestHandler = new DefaultHandler($response);
        $middlewares = new MiddlewareDispatcherDefault($defaultRequestHandler);

        // Middlewares are implementation of MiddlewareInterface
        $middleware1 = new Middleware1();
        $middleware2 = new Middleware2();
        $middleware3 = new Middleware3();
        $middleware4 = new Middleware4();

        // If need to run in reverse order
        $middleware->setReverse(true);

        // Add middlewares. It will be run in reverse order (if turn on):
        // Default Handler at first, and 4,3,2,1 after
        $middlewares->add($middleware1);
        $middlewares->add($middleware2);
        $middlewares->add($middleware3);
        $middlewares->add($middleware4);

        // Get response after process middlewares
        // $request is PSR Request
        $response = $middlewares->handle($request);






declare(strict_types=1);

namespace Middleware;

use Psr\Http\Server\RequestHandlerInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;

class TestMiddleware implements MiddlewareInterface
{

    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        $response = $handler->handle($request);

        return $response;
    }

}






declare(strict_types=1);

namespace Middleware;

use Psr\Http\Server\RequestHandlerInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;

class TestMiddleware implements MiddlewareInterface
{

    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        $response = $handler->handle($request);

        return $response->withStatus(201);
    }

}






declare(strict_types=1);

namespace Middleware;

use Psr\Http\Server\RequestHandlerInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;

class TestMiddleware implements MiddlewareInterface
{

    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        
        // do something

        // To next handler
        return $handler->handle($request);
    }

}