this is a small module to get Monstercat podcast tracklist from reddit.

Monstercat_Podcast_Retriever.js

/**
 * this is a small module to get Monstercat podcast tracklist from reddit.
 *
 * I plan to use this to get what track is playing live!
 *
 * thanks to @thefourtheye https://stackoverflow.com/questions/22581979/how-to-return-only-captured-groups-in-a-javascript-regex-with-multiple-matches
 *
 * Monstercat and reddit is not mine (obviously)
 * Feel free to use this code however you want but be so kind to link me if you use it.
 */


const regexs = {
  tracks: /((?:\d+:?)+) (.+?(?= - )) - (.+)/g,
  throwback: /\* (?:\*\*)?(.+) - (.+) \[(.+)\]/g,
  winner: /Next upcoming throwback: \*\*.+ - (.+)\*\*/g
}

/**
 * it gets the tracks of the podcast.
 * @method getPodcastTracklist
 * @param  {String|Number} n - the number of the podcast, if none is supplied its gets the latest
 * @return {Promise}         - a promise that resolves the tracklist
 */
function getPodcastTracklist(n) {
  var name = encodeURIComponent("Monstercat: Call of the Wild" + (n ? " Ep. " + n : ""))
  var url = "https://www.reddit.com/search.json?q=" + name + "&sort=new&limit=1";
  return get(url).then(function(data) {
    var stream = JSON.parse(data).data.children[0].data;
    var text = stream.selftext.replace(/&/g,"&");

    var match = regexs.tracks.exec(text);
    var tracks = [];
    while (match !== null) {
      tracks.push({
        timestamp: match[1],
        artist: match[2],
        title: match[3].trim().replace(/\*/g,"")
      });
      match = regexs.tracks.exec(text);
    }

    var match = regexs.throwback.exec(text);
    var throwback = [];
    while (match !== null) {
      throwback.push({
        artist: match[1],
        title: match[2],
        date: match[3]
      });
      match = regexs.throwback.exec(text);
    }

    var match = regexs.winner.exec(text);
    var throwback_winner = {};
    if (match !== null) {
      throwback_winner = throwback.find(function(a) {return a.title == match[1]})
    }

    return {
      tracks: tracks,
      throwback: throwback,
      throwback_winner: throwback_winner
    }
  })
}

/**
 * this is just a simple reqest module
 * @method
 * @param  {String} url the url to load
 * @return {string}     the content of that url
 */
const https = require("https");
const http = require("http");
var get = function(url) {
  return new Promise((resolve, reject) => {
    var lib = url.startsWith('https') ? https : http;
    var request = lib.get(url, function(response) {
      if (response.statusCode < 200 || response.statusCode > 299) {
         reject(new Error('Failed to load page, status code: ' + response.statusCode));
       }
      var body = [];
      response.on('data', function(chunk) {body.push(chunk)});
      response.on('end', function() {resolve(body.join(''))});
    });
    request.on('error', function(err) {reject(err)})
    })
};

/**
 * the most simple example i could come up with
 */
getPodcastTracklist().then(console.log).catch(console.log)