S3 Object Lambda - add code to Amazon S3 GET requests to process data
summary
S3 Object Lambda adds a synchronous Lambda invocation to every S3 GET, passing a pre-signed URL and the original caller identity so the function fetches, transforms, and streams the result back without creating derivative objects. Use cases shown: row/column filtering of Parquet, on‑the‑fly image resizing, PII redaction via AWS Comprehend and custom authorizers that check DynamoDB. Constraints: only GETs trigger it, default Lambda quotas apply, 60 second lambda limit, and exactly single Lambda per GET, with transformed objects streamed to clients.
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chapters (11)
- 0:00Introduction
- 0:26Agenda
- 2:17Why use Object Lambda
- 3:56Why is Object Lambda important
- 6:11Getting started with Object Lambda
- 7:38Request and Data Flow Diagram
- 9:19Lambda Notes
- 10:17AWS comprehend
- 11:32Multitenant environments
- 12:23Lambda functions
- 13:56Lambda receives input
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