Edge Computing with Cloudflare Workers & Deno · Lesson

Cron Triggers & Scheduled Workers

Run Cloudflare Workers on a schedule with Cron Triggers to automate recurring background tasks at the edge.

Why Scheduled Workers?

Beyond responding to HTTP requests, Workers can run on a schedule using Cron Triggers.

This is perfect for recurring jobs such as:

No always-on server required, the Worker simply wakes up, runs, and goes back to sleep.

A scheduled Worker exports a scheduled() handler instead of (or alongside) fetch().

Cloudflare invokes it automatically at the times you define in cron expressions.

export default {
  async scheduled(event, env, ctx) {
    console.log('Triggered at: ' + event.scheduledTime);
  }
};