API Resource 缓存没有效果？

Cache::remember是在哪部分设置的？

        $seconds = 3600 * 24;
        $cache_key = 'category_'.md5(implode(',', $category_id));
        $category = Cache::remember($cache_key, $seconds, function () use ($category_id) {
            return Category::whereIn('id',$category_id)->get();
        });

        $cache_key = 'categories_resource_'.md5(implode(',', $category_id));
        $data['Category'] = Cache::remember($cache_key, $seconds, function () use ($category) {
            return CategoryResource::collection($category);
        });
        return $this->success($data);

前面 category 的缓存没有问题，没有再执行查询语句
后面对 category的 resource执行缓存就没有效果