Summary

In this release we are happy to announce the General Availability of Idempotency utility 🚀.
The Idempotency utility provides a simple solution to convert your Lambda functions into idempotent operations which are safe to retry.
During developer preview we have taken a lot of feedback. Better documentation, support for Idempotency InProgressExpiration timestamp, register the Lambda context in your handler.

Idempotency 1.0.0 Nuget package

🌟Key features

• Prevent Lambda handler function from executing more than once on the same event payload during a time window.
• Use DynamoDB as a persistence layer for state with bring your own persistence store provider.
• Select a subset of the event as the idempotency key using JMESPath expressions.
• Payload validation to provide an additional JMESPath expression to specify which part of the event body should be validated against previous idempotent invocations.
• Set a time window in which records with the same payload should be considered duplicates
• Expires in-progress executions if the Lambda function times out halfway through

Implementation example

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Here is an example on how you register the Lambda context in your handler:

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Lambda request timeout diagram

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Quick links: 📜 Documentation | ⬇️ NuGet | 🐛 Bug Report

Changes

📜 Documentation updates

• chore: Update version and docs for Idempotency GA (chore: Update version and docs for Idempotency GA #525 ) by @hjgraca
• chore: update examples for 1.8.2 release (chore: update examples for 1.8.2 release #523 ) by @hjgraca

🐛 Bug and hot fixes

• fix: logging null reference when batch processing (fix: logging null reference when batch processing #521 ) by @hjgraca

🔧 Maintenance

• chore: Update version and docs for Idempotency GA (chore: Update version and docs for Idempotency GA #525 ) by @hjgraca
• chore: update examples for 1.8.2 release (chore: update examples for 1.8.2 release #523 ) by @hjgraca
• chore: add e2e tests for idempotency method (chore: add e2e tests for idempotency method #513 ) by @hjgraca

This release was made possible by the following contributors:

@hjgraca @amirkaws @hossambarakat