Zend\Expressive\Container\WhoopsErrorHandlerFactory::__invoke PHP Method

    public function __invoke(ContainerInterface $container)
    {
        $template = $container->has(TemplateRendererInterface::class) ? $container->get(TemplateRendererInterface::class) : null;
        $config = $container->has('config') ? $container->get('config') : [];
        $expressiveConfig = isset($config['zend-expressive']['error_handler']) ? $config['zend-expressive']['error_handler'] : [];
        $whoopsConfig = isset($config['whoops']) ? $config['whoops'] : [];
        $whoops = $container->get('Zend\\Expressive\\Whoops');
        $whoops->pushHandler($container->get('Zend\\Expressive\\WhoopsPageHandler'));
        $this->registerJsonHandler($whoops, $whoopsConfig);
        return new WhoopsErrorHandler($whoops, null, $template, isset($expressiveConfig['template_404']) ? $expressiveConfig['template_404'] : 'error/404', isset($expressiveConfig['template_error']) ? $expressiveConfig['template_error'] : 'error/error');
    }