skies-api/src/App/Action/ActivitySignupAction.php

<?php

namespace App\Action;

use App\Service\SkiesClientService;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\RequestHandlerInterface;
use Zend\Diactoros\Response\JsonResponse;

class ActivitySignupAction implements RequestHandlerInterface
{
    /**
     * @var SkiesClientService
     */
    private $skiesClient;

    public function __construct(SkiesClientService $skiesClient)
    {
        $this->skiesClient = $skiesClient;
    }

    /**
     * @param ServerRequestInterface $request
     * @return ResponseInterface
     * @throws \GuzzleHttp\Exception\GuzzleException
     */
    public function handle(ServerRequestInterface $request) : ResponseInterface
    {
        $authHeader = $request->getHeaderLine("x-passthru-auth");
        $id = $request->getAttribute("id");
        return new JsonResponse($this->skiesClient->setAuthHeader($authHeader)->signUpActivity($id));
    }
}