/**
* @param ServerRequestInterface $request
* @param ResponseInterface $response
* @param callable|null $next
* @return ResponseInterface
*/
public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next = null)
{
if (!$this->session->isStarted()) {
$this->session->start();
}
$request = $request->withAttribute('session', $this->session);
if ($next) {
return $next($request, $response);
}
return $response;
}