Build and monitor a multi-track ZIP export

import { writeFile } from "node:fs/promises";

const API_URL = "https://api.neuralanalog.com";
const API_KEY = process.env.NEURALANALOG_API_KEY;
const audioId = "6c62f8e7-02a3-48c0-a5b5-5de87ed9c31a";
const response = await fetch(`${API_URL}/batch/exports`, {
  method: "POST",
  headers: {
    "X-API-Key": API_KEY,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    audio_ids: [audioId],
    mode: "download",
    versions: ["original", "restored", "mastered"],
    download_profile: "optimal",
  }),
});
if (!response.ok) {
  throw new Error(`Archive request failed with ${response.status}`);
}

const started = await response.json();
let archive;
for (;;) {
  const statusResponse = await fetch(
    `${API_URL}/batch/exports/${started.export_id}`,
    { headers: { "X-API-Key": API_KEY } },
  );
  if (!statusResponse.ok) {
    throw new Error(`Archive status failed with ${statusResponse.status}`);
  }
  archive = await statusResponse.json();
  if (archive.status === "completed") break;
  await new Promise((resolve) => setTimeout(resolve, 2000));
}

const download = await fetch(archive.download_url, { redirect: "follow" });
if (!download.ok) {
  throw new Error(`Archive download failed with ${download.status}`);
}
await writeFile("neuralanalog-archive.zip", Buffer.from(await download.arrayBuffer()));