Node.js

fetch, plus a wrapper for scheduled scripts.

fetch (Node 18+)

const PING = "https://vivere.dev/p/<monitor-id>";

async function ping(suffix = "", body) {
  try {
    await fetch(PING + suffix, { method: "POST", body, signal: AbortSignal.timeout(10_000) });
  } catch {} // never let monitoring break the job
}

await ping("/start");
try {
  await runJob();
  await ping("", "job ok");
} catch (err) {
  await ping("/fail", String(err.stack ?? err).slice(-16000));
  process.exitCode = 1;
}

node-cron

import cron from "node-cron";
cron.schedule("*/10 * * * *", async () => {
  await ping("/start");
  try { await sync(); await ping(); } catch (e) { await ping("/fail", String(e)); }
});

Give the monitor the same expression, */10 * * * *, and a grace of a few minutes.