AWS S3 is there a notification on GetObject?

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I have a usecase where I want to put data into an S3 bucket, for it to read later, by another account. I only want the other account to be able to read the file in S3, and once they have read it, I will then delete the file myself.

I have been reading the S3 documentation, and cannot see they cover this usecase: of sending a notification when a file in an S3 bucket is read ?

Can anyone help, or suggest an alternative workflow ? I have been looking at AWS SNS and was wondering if that would be a better solution ?

amazon-web-services amazon-s3
1 Answers

You could use CloudTrail and CloudWatch Events to enable this workflow.

By default S3 API calls are not logged so you'd want to enable that following the instructions here.

Then enable a CloudWatch event rule for the Simple Storage Service where the "GetObject" operation occurs.

Have this event invoke a Lambda function that will remove the object.

More information available here.

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