aws-lambda-durable-functions

1# AWS Lambda durable functions
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3Build resilient multi-step applications and AI workflows that can execute for up to 1 year while maintaining reliable progress despite interruptions.
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5## Onboarding
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7### Step 1: Validate Prerequisites
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9Before using AWS Lambda durable functions, verify:
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111. **AWS CLI** is installed (2.33.22 or higher) and configured:
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13   ```bash
14   aws --version
15   aws sts get-caller-identity
16   ```
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182. **Runtime environment** is ready:
19   - For TypeScript/JavaScript: Node.js 22+ (`node --version`)
20   - For Python: Python 3.11+ (`python --version`. Note that currently only Lambda runtime environments 3.13+ come with the Durable Execution SDK pre-installed. 3.11 is the min supported Python version by the Durable SDK itself, however, you could use OCI to bring your own container image with your own Python runtime + Durable SDK.)
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223. **Deployment capability** exists (one of):
23   - AWS SAM CLI (`sam --version`) 1.153.1 or higher
24   - AWS CDK (`cdk --version`) v2.237.1 or higher
25   - Direct Lambda deployment access
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27### Step 2: Select language and IaC framework
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29### Language Selection
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31Default: TypeScript
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33Override syntax:
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35- "use Python" → Generate Python code
36- "use JavaScript" → Generate JavaScript code
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38When not specified, ALWAYS use TypeScript
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40### IaC framework selection
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42Default: CDK
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44Override syntax:
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46- "use CloudFormation" → Generate YAML templates
47- "use SAM" → Generate YAML templates
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49When not specified, ALWAYS use CDK
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51### Error Scenarios
52…