PHP code example of waglpz / webapp-middleware

1. Go to this page and download the library: Download waglpz/webapp-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/ */

waglpz / webapp-middleware example snippets


$request;
\assert($request instanceof \Psr\Http\Message\ServerRequestInterface);

$middleware_1;
\assert($middleware_1 instanceof Waglpz\Webapp\Middleware\Middleware);
$middleware_2;
\assert($middleware_2 instanceof Waglpz\Webapp\Middleware\Middleware);
$middleware_3;
\assert($middleware_3 instanceof Waglpz\Webapp\Middleware\Middleware);
$finnaly;
\assert(\is_callable($finnaly));
$middlewares = [
    $middleware_1,// execute first
    $middleware_2,// execute second
    $middleware_3 // executes third
];


$middlewareStack = new Waglpz\Webapp\Middleware\MiddlewareStack($middlewares);

$response = $middlewareStack($request);
// or exact same as manual call
$response = $middleware_1(
    $request, 
    fn ($request) => $middleware_2(
        $request, 
        fn ($request) => $middleware_3(
            $request, 
            fn ($request) => $finnaly(
                $request
            )
        )
    )
); 

\assert($response instanceof \Psr\Http\Message\ResponseInterface)