Slim 3 Framework + Cookies

Question

I've been using Slim Framework 2 for a while but want to switch to the newest version 3. When reading the upgrade guide, I was a bit bummed about them simply stating that "cookies has been removed from the core" and referring to the FIG Cookies github repo that contains code snippets that simply don't work with Slim.

Could anyone share some working code snippets that set and get some dummy cookies using Slim 3? Thanks.

Answer 1

If you don't want to use the tested PSR-7 library FIG Cookies you can use this:

namespace Your\App;

use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;

class Cookie
{
    /**
     * @param Response $response
     * @param string $key
     * @param string $value
     * @return Response
     */
    public function deleteCookie(Response $response, $key)
    {
        $cookie = urlencode($key).'='.
            urlencode('deleted').'; expires=Thu, 01-Jan-1970 00:00:01 GMT; Max-Age=0; path=/; secure; httponly';
        $response = $response->withAddedHeader('Set-Cookie', $cookie);
        return $response;
    }

    /**
     * @param Response $response
     * @param string $cookieName
     * @param string $cookieValue
     * @return Response
     */
    public function addCookie(Response $response, $cookieName, $cookieValue)
    {
        $expirationMinutes = 10;
        $expiry = new \DateTimeImmutable('now + '.$expirationMinutes.'minutes');
        $cookie = urlencode($cookieName).'='.
            urlencode($cookieValue).'; expires='.$expiry->format(\DateTime::COOKIE).'; Max-Age=' .
            $expirationMinutes * 60 . '; path=/; secure; httponly';
        $response = $response->withAddedHeader('Set-Cookie', $cookie);
        return $response;
    }

    /**
     * @param Request $request
     * @param string $cookieName
     * @return string
     */
    public function getCookieValue(Request $request, $cookieName)
    {
        $cookies = $request->getCookieParams();
        return isset($cookies[$cookieName]) ? $cookies[$cookieName] : null;
    }

}