intermediate~2h
Event-Driven File Processing with S3
Building a pipeline that reacts automatically to S3 object uploads via event notifications to Lambda or SQS, and handling the idempotency concerns that come with S3's occasional duplicate event delivery.
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Subtopics
🎓 Learning objectives
- •Configure S3 event notifications to trigger Lambda directly or via SQS
- •Design an upload-to-processing pipeline end to end
- •Explain why S3 event delivery is at-least-once, not exactly-once
- •Implement idempotent processing logic that tolerates duplicate event delivery
- •Choose between direct Lambda triggers and an SQS buffer for different load patterns
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Related concepts
sqs-dead-letter-queues-deep-divespring-boot-error-handling-and-resilience-on-awss3-fundamentalslambda-fundamentals