liiinder / ramverk1-module

src/Controller/IpVerifierAPIController.php

<?php

namespace Linder\Controller;

use Anax\Commons\ContainerInjectableInterface;
use Anax\Commons\ContainerInjectableTrait;
use Linder\Model\IpVerifier;

/**
 * A controller that handles a get request
 * uses a model and returns a Json.
 * @return Array
 */
class IpVerifierAPIController implements ContainerInjectableInterface
{
    use ContainerInjectableTrait;

    public function indexAction() : array
    {
        $ip = $this->di->request->getGet("ip") ?: $this->di->request->getServer("REMOTE_ADDR");

Accessing request on the interface Psr\Container\ContainerInterface suggest that you code against a concrete implementation. How about adding an instanceof check?

        return [
            $this->di->get("ipverifier")->getJson($ip)
        ];
    }
}