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Deno Cron


Deno Cron is a cron task scheduler built into the Deno runtime and works with zero configuration on Deno Deploy. There's no overlapping cron executions and has automatic handler retries on exceptions.

Create a cron job called "Log a message" that runs once a minute.
Deno.cron("Log a message", "* * * * *", () => {
  console.log("This will print once a minute.");
Create a cron job with a backoff schedule measured in milliseconds.
Deno.cron("Retry example", "* * * * *", {
  backoffSchedule: [1000, 5000, 10000],
}, () => {
  throw new Error("Deno.cron will retry this three times, to no avail!");

Run this example locally using the Deno CLI:

deno run --unstable https://examples.deno.land/cron.ts