Kotless Events API

Kotless DSL provides number of annotations to work with different Events sources in the cloud.

Scheduled events

Scheduled annotation declares that function annotated with it should be triggered by a timer.

Mostly, it should be used to set up scheduled jobs.

Note that the function should not have any parameters, since it will be called via crontab-like service that passes no context.

The annotation requires cron argument — it is a cron expression that defines trigger behavior. Its syntax is taken from AWS Scheduled Events (more detailed information).

Also, you can provide id argument — it will be used to create a trigger on a cloud side. In case no id is provided, it will be generated by Kotless during deployment.

Here is an example of Scheduled job:

@Scheduled(Scheduled.everyHour)
fun storageCleanup() {
    logger.info("Starting storage cleanup")
    Storage.cleanup()
    logger.info("Ended storage cleanup")
}