嵌套的异步.each系列堆栈迭代

以下函数接收链接数组并扫描远程网站，每页获取 10 篇博客文章，然后使用 async.waterfall 获取博客文章的每条评论。

// @param {Array} url
export default function getData(url, cb) {
  const arrayOfPosts = [];
  // Outer loop
  async.eachSeries(url, (link, topLVLcb) => {
    // Waterfall
    async.waterfall([
      // Collects links to posts
      callback => {
        request(link, (err, response, body) => {
          console.log(`working on ${link}`);
          const $ = cheerio.load(body);
          // OVERALL 10 LINKS PER ONE BLOGPOST
          $('.blogpost').each((i, element) => {
            // build post ojbect
            const post =  {
              content,
              link,
              comments: []
            }
            arrayOfPosts.push(post);
          });
          callback(null, arrayOfPosts);
        });
      },
      // Looks for details in given post
      (arrOfPosts, postDetailsCallback) => {
        let counter = 1;
        // Inner loop through 10 links
        async.eachSeries(arrOfPosts, (post, eachSeriesCallback) => {
          request(post.link, (err, response, body) => {
            console.log(counter++);
            const $ = cheerio.load(body);
            $('.comment').each((i, element) => {
              // build comment
              const comment = {
                author,
                content
              };
              post.comments.push(comment);
            });
            eachSeriesCallback(null);
          });
        }, postDetailsCallback);
      }
    ], err => {
      console.log('DONE PAGE');
      console.log('*************************');
      topLVLcb(err);
    });
  }, (result, err) => {
    if (err) {
      throw err;
    } else {
      console.log('DONE ALL');
      cb(arrayOfPosts);
    }
  });
}

它提供如下输出：

working on www.mywebsite.com/
1
2
3
4
5
6
7
8
9
10
DONE PAGE
**************************************************************
working on www.mywebsite.com/posts/1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DONE PAGE
**************************************************************

它将每个页面递增 10，从每次迭代重新开始。虽然它应该扫描每页 10 次。我认为我已经搞砸了一些回调，但我已经无法弄清楚确切的几个小时了。这是我的第一个nodejs异步代码，它非常压倒性。