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Add Lambda Durable Functions with Human-in-the-Loop pattern#2954

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4D54 wants to merge 2 commits intoaws-samples:mainfrom
4D54:lambda-durable-hitl-python-sam
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Add Lambda Durable Functions with Human-in-the-Loop pattern#2954
4D54 wants to merge 2 commits intoaws-samples:mainfrom
4D54:lambda-durable-hitl-python-sam

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@4D54 4D54 commented Feb 13, 2026

This pattern demonstrates AWS Lambda Durable Functions with human approval workflow using Python 3.13, DynamoDB, and SNS. Key features include:

  • Durable execution with checkpointed steps
  • Polling-based approval workflow (no compute charges during waits)
  • Automatic timeout handling
  • Complete audit trail in DynamoDB
  • SNS notifications for approvers
  • AWS CLI testing examples

The pattern showcases how Lambda functions can pause execution, wait for human decisions, and resume based on approval/rejection.

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This pattern demonstrates AWS Lambda Durable Functions with human approval workflow using Python 3.13, DynamoDB, and SNS. Key features include:

- Durable execution with checkpointed steps
- Polling-based approval workflow (no compute charges during waits)
- Automatic timeout handling
- Complete audit trail in DynamoDB
- SNS notifications for approvers
- AWS CLI testing examples

The pattern showcases how Lambda functions can pause execution, wait for human decisions, and resume based on approval/rejection.
This pattern demonstrates AWS Lambda Durable Functions with human approval workflow using Python 3.13, DynamoDB, and SNS.

Author: Mian Tariq
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3 participants