yt-stream/src/convert.js

Create easily readable streams from YouTube video url's

const { validateURL, validateID, validatePlaylistID } = require('./validate.js');
const _getURL = require('./request/url.js');

function getID(ytstream, url){
  if(typeof url !== 'string') throw new Error(`URL is not a string`);
  if(!validateURL(ytstream, url)) return undefined;

  const parsed = _getURL(url);

  const host = parsed.hostname.toLowerCase().split('www.').join('');

  let ytid;
  if(host === `youtu.be`) ytid = parsed.pathname.split('/').join('');
  else if(host === `youtube.com` || host === 'music.youtube.com'){
    if(parsed.pathname.startsWith('/watch')) ytid = parsed.searchParams.get('v') || null;
    else if(parsed.pathname.startsWith('/embed/')) ytid = parsed.pathname.split('/embed/').join('');
    else if(parsed.pathname.startsWith('/v/')) ytid = parsed.pathname.split('/v/').join('');
    else if(parsed.pathname.startsWith('/shorts/')) ytid = parsed.pathname.split('/shorts/').join('');
    else if(parsed.pathname.startsWith('/playlist')) ytid = parsed.searchParams.get('list') || null;
    else ytid = null
  } else ytid = null;

  if(validateID(ytstream, ytid) || validatePlaylistID(ytstream, ytid)) return ytid;
  else return undefined;
}

function getURL(ytstream, id){
  if(typeof id !== 'string') throw new Error(`ID is not a string`);

  let reg = /^[A-Za-z0-9_-]*$/;
  if(!reg.test(id)) return undefined;

  return `https://www.youtube.com/watch?v=${id}`;
}

module.exports ={
  getID,
  getURL
}