Custom Method Middleware

If you want to use middleware that are class based and use a method other than __invoke, you need to use the methodInvoke invoker.

Here’s an example using classes with a method of handle

<?php

use Krak\Mw;

class AppendMw
{
    private $c;
    public function __construct($c) {
        $this->c = $c;
    }

    public function handle($s, $next) {
        return $next($s . $this->c);
    }
}

class IdMw {
    public function handle($s) {
        return $s;
    }
}

$handler = mw\compose([
    new IdMw(),
    new AppendMw('b')
], new Mw\Context\StdContext(mw\methodInvoke('handle')));

assert($handler('a') == 'ab');