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Cold-start warmer as a Vercel cron

Open · 105 views · asked 2 weeks ago by jonas_k · edited

Keeps a Railway, Render or Replit backend awake without a paid always-on plan. Daily minimum on Hobby, every 10 minutes on Pro.

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// vercel.json
{ "crons": [{ "path": "/api/warm", "schedule": "*/10 * * * *" }] }

// app/api/warm/route.ts
export async function GET() {
  await fetch(process.env.BACKEND_URL + "/health").catch(() => {});
  return new Response("ok");
}

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Using this for my Railway backend. On Hobby the cron only runs daily, so I added an uptime monitor for the 10 minutes. kai_makes 2 weeks ago · edited

Right, on Hobby this is a once-a-day warm-up. Clarified that in the description. jonas_k 2 weeks ago · edited

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Cold-start warmer as a Vercel cron

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