Get the commenters list from your last Steem post

get_commenters_from_last_post.js

'use strict';

/* to be filled up */
const selfName = 'jonmaim';
const postingWif = 'xxx';

const steem = require('steem');

const timeout = (ms) => new Promise(resolve => setTimeout(resolve, ms));

async function forEach(array, callback) {
  return new Promise(async resolve => {
    for (let index = 0; index < array.length; index++) {
      await callback(array[index], index, array);
    }
    return resolve();
  });
}

function getComments(name, permlink) {
  return new Promise(async resolve => {
    steem.api.getContentReplies(name, permlink, async (err, parentComments) => {
      if (err) { throw err; }

      let comments = [];

      await forEach(parentComments, async function(c) {
        console.log('-', c.author);
        if (c.children > 0) {
          const childrenComments = await getComments(c.author, c.permlink);
          childrenComments.forEach(cc => comments.push(cc));
        }
      });
      comments = parentComments.concat(comments);

      return resolve(comments);
    });
  });
}

async function getLastPost(u) {
  return new Promise(resolve => {
    steem.api.getDiscussionsByBlog({tag: u, limit: 1}, async (err, posts) => {
      if (err) { throw err; }

      if (!posts.length) { return resolve(); }

      const p = posts[0];


      const comments = await getComments(p.author, p.permlink);
      console.log('done', p.author, p.permlink);

      let authors = {};
      comments.forEach(c => {
        authors[c.author] = true;
        console.log(c.author);
      });
      console.log('# comments', comments.length);
      console.log('@' + Object.keys(authors).reduce((acc, v) => v + ' | @' + acc));
      return resolve();
    });
  });
}

(async function() {
  await getLastPost(selfName);
}());