Yaf_Controller_Abstract::getResponse

<?php
class ProductController extends Yaf_Controller_Abstract
{
    public function apiAction() {
        // build the answer ourselves, no template needed
        Yaf_Dispatcher::getInstance()->disableView();

        $response = $this->getResponse();
        $response->setHeader("Content-Type", "application/json");
        $response->setBody(json_encode(array("name" => "yaf")));
        // Yaf sends the body after the dispatch loop finishes
    }
}
?>