EventBridge infinite loop calling API Gateway

Question

I have an EventBridge rule with cron to run once day. When I enable the rule, it keeps firing the event and executing the API Gateway. I tried to disabled the rule but checking the logs for API Gateway, I keep seeing executions.

Is this expected behavior for a rule?

Answer

This is the cron expression: cron(10 * * * ? *).

The API Gateway was failing and it was retrying but I also saw the same behavior on success from API Gateway.

Answer

That expression means that your API is being triggered at 10 minutes past the hour, every hour of the day.

Looking [at the documentation](https://docs.aws.amazon.com/eventbridge/latest/userguide/eb-create-rule-schedule.html) you probably want something like `(0 10 * * ? *) which runs at 10AM UTC every day.

Answer

It might be helpful to show the cron expression that is being used.

Is the API Gateway invocation succeeding? If it fails you might find that EventBridge will retry the operation.

EventBridge infinite loop calling API Gateway

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