AWSScheduler is a scheduling system used to invoke any lambdas using EventBridge rule. You can find out about supported schedulerExpression from https://docs.aws.amazon.com/eventbridge/latest/userguide/eb-schedule-expressions.html
The design of this functionality is originated from https://aws.amazon.com/blogs/mt/build-scheduler-as-a-service-amazon-cloudwatch-events-amazon-eventbridge-aws-lambda/. However, this has an additional cleanup function that will try to clean up expiring rule, so you won't run into the issue of having unused scheduling rules.
Example of making a request to schedule another lambda
curl --location --request POST 'https://bv8zd56pw1.execute-api.us-east-1.amazonaws.com/aws-scheduler-lambda' \
--header 'Content-Type: application/json' \
--data-raw '{
"schedulerExpression": "cron(5 17 11 4 ? 2021)",
"targetFunctionName": "aws_scheduler_cleanup",
"target": {
"id": "aws_scheduler_cleanup",
"arn": "arn:aws:lambda:us-east-1:108317574226:function:aws_scheduler_cleanup",
"input": "{ \"data\": \"Just some random data\" }"
}
}'
targetFunctionName must be equal to target.id
This deployment script assumes that you use terraform and already setup correct permission for terraform to run.
./deploy-script.sh./tear-down-script.sh