Question

A developer is building an image-processing pipeline. When new images are uploaded to an S3 bucket, the system must trigger multiple independent workflows: a Lambda function for thumbnail generation, a Step Functions workflow for content moderation, and an SNS notification to an operations topic. The developer wants to configure this using the most maintainable, loosely coupled approach that allows adding or removing consumers later without changing the bucket configuration. Which approach should the developer use?

Accepted Answer

Enable Amazon EventBridge on the S3 bucket and create separate EventBridge rules that route the object-created events to each target.

Answer

Configure three separate S3 event notifications on the bucket, one for each target (Lambda, Step Functions, and SNS).

Answer

Configure a single S3 event notification to invoke a Lambda function that then calls the other services directly.

Answer

Configure an S3 event notification to publish to an SNS topic and subscribe all three targets to that topic.