Download Microsoft Stream Transcript

download-ms-stream-transcript.js

(async () => {
  const videoId = window.location.pathname.replace("/video/", '');

  await fetch(
    `https://euno-1.api.microsoftstream.com/api/videos/${videoId}/events?$filter=Type eq 'transcript'&api-version=1.4-private`,
    {
      headers: {
        Accept: "application/json",
      },
      credentials: 'include'
    }
  )
    .then(r => r.json())
    .then(r => {
      const text = r.value
        .filter(entry => entry.type === "transcript")
        .map(entry => entry.eventData.text.replace(/\r\n/g, ' '))
        .join(" ");

      const element = document.createElement('a');
      element.setAttribute(
        "href",
        "data:text/plain;charset=utf-8," + encodeURIComponent(text)
      );
      element.setAttribute("download", `${/'(.*)'/.exec(document.title)[1]} - Transcript.txt`);

      element.style.display = "none";
      document.body.appendChild(element);

      element.click();

      document.body.removeChild(element);
    });
})();