alltube/controllers/JsonController.php

<?php

/**
 * JsonController class.
 */

namespace Alltube\Controller;

use Alltube\Video;
use Exception;
use Slim\Http\Request;
use Slim\Http\Response;

/**
 * Controller that returns JSON.
 */
class JsonController extends BaseController
{
    /**
     * Return the JSON object generated by youtube-dl.
     *
     * @param Request  $request  PSR-7 request
     * @param Response $response PSR-7 response
     *
     * @return Response HTTP response
     */
    public function json(Request $request, Response $response)
    {
        $url = $request->getQueryParam('url');

        if (isset($url)) {
            try {
                $this->video = new Video($url, $this->getFormat($request), $this->getPassword($request));

                return $response->withJson($this->video->getJson());
            } catch (Exception $e) {
                return $response->withJson(['error' => $e->getMessage()])
                    ->withStatus(500);
            }
        } else {
            return $response->withJson(['error' => 'You need to provide the url parameter'])
                ->withStatus(400);
        }
    }
}