php-routing-sample/src/lib/HandlerAction.php

<?php

class HandlerAction extends Action
{
    protected $handler;

    public function __construct($path, $method, IHandler $handler)
    {
        parent::__construct($path, $method);
        $this->handler = $handler;
    }

    public function execute(): void
    {
        $this->handler->execute($this);
    }

    public function render(): void
    {}
}