dash-parser

import * as DASH from 'dash-parser';

// Parse an existing manifest file and create a MPD object
const mpdObject = DASH.parse(textData);

// Or create an object from scratch
const {MPD, BaseURL, Period, AdaptationSet} = DASH;
const mpdObject = new MPD({
  type: "static",
  minBufferTime: 2,
  profiles: 'urn:mpeg:dash:profile:isoff-on-demand:2011',
  mediaPresentationDuration: 512,
  children: [
    new BaseURL({
      url: "http://cdn1.example.com",
    }),
    new BaseURL({
      url: "http://cdn2.example.com",
    }),
    new Period({
      duration: 512,
      children: [
        new AdaptationSet({
          contentType: 'video',
          mimeType: 'video/mp4',
          codecs: 'avc1.4d401f',
          frameRate: 24,
          width: 1280,
          height: 720,
          children: [
            // ...
          ],
        }),
        new AdaptationSet({
          contentType: 'audio',
          mimeType: 'audio/mp4',
          codecs: 'mp4a.40.2',
          audioSamplingRate: 48000,
          children: [
            // ...
          ],
        }),
      ],
    },
  ],
});

// Convert the MPD object into a text
DASH.stringify(mpdObject);
/*
<?xml version="1.0" encoding="UTF-8"?>
  <MPD
    type="static"
    mediaPresentationDuration="PT512S"
    minBufferTime="PT2S"
    profiles="urn:mpeg:dash:profile:isoff-on-demand:2011">
    
    <BaseURL>http://cdn1.example.com/</BaseURL>
    <BaseURL>http://cdn2.example.com/</BaseURL>
    
    <Period>
    ...
*/