rssBuild.js

const Podcast = require('podcast');
const fs = require('fs');
const yaml = require('js-yaml');

let config
let episode
try {
  episode = yaml.safeLoad(fs.readFileSync('./src/assets/episode.yml', 'utf8'));
  config = yaml.safeLoad(fs.readFileSync('./src/assets/config.yml', 'utf8'));
} catch (e) {
  console.log(e);
}

const {episodeList} = episode
const {domain, author} = config

/* lets create an rss feed */
const feed = new Podcast({
  title: 'FAcast',
  description: 'FAcast',
  feed_url: `${domain}/feed.xml`,
  site_url: `${domain}`,
  image_url: `${domain}/static/ogp.png`,
  docs: '雑談系Podcast',
  author: author,
  managingEditor: author,
  webMaster: author,
  copyright: '2018 Okada Genya',
  language: 'ja',
  categories: ['car', 'auto', 'frontend'],
  pubDate: episodeList[0].pubDate,
  ttl: '60',
  itunesAuthor: author,
  itunesSubtitle: '雑談系Podcast',
  itunesSummary: '雑談系Podcast',
  itunesOwner: { name: 'Okada Genya', email:'g.okada.wilf@gmail.com' },
  itunesExplicit: false,
  itunesCategory: [{
    "text": "Technology",
    "subcats": [{
      "text": "Technology"
    }]
  }],
  itunesImage: `${domain}/static/ogp.png` // 1400? http://cdn.rebuild.fm/images/icon1400.j`
});

/* loop over data and add to feed */
const feedConst = {
  itunesAuthor: author,
  itunesExplicit: false
}
episodeList.reverse().forEach(({
  title,
  description,
  pubDate,
  duration,
  uid
}) => {
  const path = `/static/storage/${uid}.mp3`;
  const stat = fs.statSync(`.${path}`);

  feed.addItem(Object.assign({}, {
    title: `${uid} ${title}`,
    description,
    url: `${domain}/${uid}`, // link to the item
    date: pubDate, // any format that js Date can parse.
    itunesDuration: duration,
    enclosure: {
      url: `${domain}${path}`,
      type: 'audio/mpeg',
      length: `${stat.size}`
    }
  }, feedConst));
});

// cache the xml to send to clients
const xml = feed.buildXml();

fs.writeFile('dist/feed.xml', xml, (err) => {
  if (err) throw err;
  console.log('The file has been saved!');
});