src/Application/HttpApplication.php
public function onRequest(Client $client, ServerRequestInterface $request, ResponseInterface $response): ResponseInterface
    {
        return $this->handle($request);
    }
public function onRequest(Client $client, ServerRequestInterface $request, ResponseInterface $response): ResponseInterface
    {
        return $this->handle($request);
    }
Decorator for handle method, used by server instance.
@see Application::handle()
@see Server::addListener()

@param ResponseInterface $response
@param Client $client
@param ServerRequestInterface $request
@return ResponseInterface