How to schedule S3 object deletions using Lambda functions?

To schedule S3 object deletions using Lambda functions, you can follow these steps:

1. Create a new Lambda function in the AWS Management Console or using the AWS CLI that includes code to delete objects from your S3 bucket. You can use the AWS SDK for JavaScript to interact with S3 and delete objects programmatically.

2. Set up a CloudWatch Events rule to trigger the Lambda function at a specified schedule. You can define the schedule using a cron expression or a rate expression in CloudWatch Events.

3. In the CloudWatch Events rule configuration, set the event source to be the schedule you defined in the previous step.

4. Configure the Lambda function's permissions to allow it to access the S3 bucket and delete objects. You can do this by creating an IAM role with the necessary permissions and attaching it to the Lambda function.

5. Test the setup by manually triggering the Lambda function first to ensure that it deletes objects from the S3 bucket as expected.

6. Once the function is working correctly, the objects in the S3 bucket will be deleted automatically according to the schedule you defined in the CloudWatch Events rule.