custom-link-class.rst

Custom Link Class

You can optionally provide your own Link to allow easier access to the Context or other methods. It's best to extend the Mw\Link and just add methods and not data because the Link class logic is very critical to the design of the mw system.

<?php

use Krak\Mw;

class LoggingLink extends Mw\Link
{
    public function echoLog($info) {
        echo $info . PHP_EOL;
    }
    public function log() {
        return $this->getContext()->logger;
    }
}

$handler = mw\compose([
    function($i, $next) {
        $next->echoLog('hi');
        return 1;
    }
], null, null, LoggingLink::class);

assert($handler(0) == 1);