Setting Cron Triggers
Set a Cron Trigger for your Worker.
export default { async scheduled(controller, env, ctx) { console.log("cron processed"); },
};
const handler: ExportedHandler = { async scheduled(controller, env, ctx) { console.log("cron processed"); },
};
export default handler;
Test Cron Triggers using Wrangler
The recommended way of testing Cron Triggers is using Wrangler.
Cron Triggers can be tested using Wrangler by passing in the --test-scheduled
flag to wrangler dev
. This will expose a /__scheduled
route which can be used to test using a HTTP request. To simulate different cron patterns, a cron
query parameter can be passed in.
$ wrangler dev --test-scheduled
$ curl "http://localhost:8787/__scheduled?cron=*+*+*+*+*"
Setting Cron Triggers in Wrangler
If you are deploying with Wrangler, set the cron syntax (once per hour as shown below) by adding this to your wrangler.toml
file:
name = "worker"
# ...
[triggers]
crons = ["0 * * * *"]
You also can set a different Cron Trigger for each environment in your wrangler.toml
. You need to put the [triggers]
table under your chosen environment. For example:
[env.dev.triggers]
crons = ["0 * * * *"]