Revamp of "Start Media Download" API reference to handle media files

media-output.js

const fetch = require("node-fetch");
const fs = require("fs");

const url = process.env.DOLBYIO_OUTPUT_URL;
const options = {
  method: "GET",
  headers: {
    Accept: "application/octet-stream",
    "x-api-key": process.env.DOLBYIO_API_KEY,
  },
};
const path = process.env.LOCAL_FILE_PATH;

const downloadFile = async (url, options, path) => {
  const res = await fetch(url, options);
  const fileStream = fs.createWriteStream(path);
  await new Promise((resolve, reject) => {
    res.body.pipe(fileStream);
    res.body.on("error", reject);
    fileStream.on("finish", resolve);
  });
};

downloadFile(url, options, path);