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Merge pull request #1 from jeffrey-baker-vg/typescript-idempotency-initial-dev-branch
Typescript idempotency initial dev branch
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‎packages/idempotency/LICENSE-THIRD-PARTY

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@aws-lambda-powertools/commons
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0.0.2 <https://github.com/awslabs/aws-lambda-powertools-typescript>
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license: MIT*
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authors: Amazon Web Services <https://aws.amazon.com>
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******************************
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@types/aws-lambda
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8.10.87 <https://github.com/DefinitelyTyped/DefinitelyTyped>
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MIT License
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Copyright (c) Microsoft Corporation.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE
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32+
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******************************
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lodash
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4.17.21 <https://github.com/lodash/lodash>
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Copyright OpenJS Foundation and other contributors <https://openjsf.org/>
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Based on Underscore.js, copyright Jeremy Ashkenas,
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DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
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This software consists of voluntary contributions made by many
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individuals. For exact contribution history, see the revision history
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available at https://github.com/lodash/lodash
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The following license applies to all parts of this software except as
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documented below:
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====
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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====
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Copyright and related rights for sample code are waived via CC0. Sample
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code is defined as all source code displayed within the prose of the
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documentation.
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CC0: http://creativecommons.org/publicdomain/zero/1.0/
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====
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Files located in the node_modules and vendor directories are externally
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maintained libraries used by this software which have their own
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licenses; we recommend you read them, as their terms may differ from the
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terms above.
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******************************
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lodash.clonedeep
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4.5.0 <https://github.com/lodash/lodash>
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Copyright jQuery Foundation and other contributors <https://jquery.org/>
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Based on Underscore.js, copyright Jeremy Ashkenas,
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DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
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This software consists of voluntary contributions made by many
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individuals. For exact contribution history, see the revision history
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available at https://github.com/lodash/lodash
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The following license applies to all parts of this software except as
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documented below:
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====
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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====
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Copyright and related rights for sample code are waived via CC0. Sample
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code is defined as all source code displayed within the prose of the
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documentation.
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CC0: http://creativecommons.org/publicdomain/zero/1.0/
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====
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Files located in the node_modules and vendor directories are externally
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maintained libraries used by this software which have their own
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licenses; we recommend you read them, as their terms may differ from the
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terms above.
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******************************
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lodash.merge
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4.6.2 <https://github.com/lodash/lodash>
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Copyright OpenJS Foundation and other contributors <https://openjsf.org/>
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Based on Underscore.js, copyright Jeremy Ashkenas,
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DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
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This software consists of voluntary contributions made by many
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individuals. For exact contribution history, see the revision history
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available at https://github.com/lodash/lodash
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The following license applies to all parts of this software except as
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documented below:
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====
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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====
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Copyright and related rights for sample code are waived via CC0. Sample
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code is defined as all source code displayed within the prose of the
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documentation.
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CC0: http://creativecommons.org/publicdomain/zero/1.0/
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====
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Files located in the node_modules and vendor directories are externally
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maintained libraries used by this software which have their own
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licenses; we recommend you read them, as their terms may differ from the
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terms above.

‎packages/idempotency/README.md

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# AWS Lambda Powertools for TypeScript
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A suite of utilities for AWS Lambda functions to ease the adoption of best practices such as tracing, structured logging, custom metrics, and more.
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You can use the library in both TypeScript and JavaScript code bases.
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AWS Lambda Powertools for [Python](https://github.com/awslabs/aws-lambda-powertools-python) and AWS Lambda Powertools for [Java](https://github.com/awslabs/aws-lambda-powertools-java) are also available.
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**[📜 Documentation](https://awslabs.github.io/aws-lambda-powertools-typescript/)** | **[NPM](https://www.npmjs.com/org/aws-lambda-powertools)** | **[Roadmap](https://github.com/awslabs/aws-lambda-powertools-roadmap/projects/1)** | **[Examples](https://github.com/awslabs/aws-lambda-powertools-typescript/tree/main/examples)** | **[Serverless TypeScript Demo](https://github.com/aws-samples/serverless-typescript-demo)**
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## Table of contents
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- [Features](#features)
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- [Getting started](#getting-started)
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- [Installation](#installation)
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- [Examples](#examples)
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- [Serverless TypeScript Demo](#serverless-typescript-demo-application)
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- [Contribute](#contribute)
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- [Roadmap](#roadmap)
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- [Connect](#connect)
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- [Credits](#credits)
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- [License](#license)
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## Features
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* **[Tracer](https://awslabs.github.io/aws-lambda-powertools-typescript/latest/core/tracer/)** - Utilities to trace Lambda function handlers, and both synchronous and asynchronous functions
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* **[Logger](https://awslabs.github.io/aws-lambda-powertools-typescript/latest/core/logger/)** - Structured logging made easier, and a middleware to enrich log items with key details of the Lambda context
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* **[Metrics](https://awslabs.github.io/aws-lambda-powertools-typescript/latest/core/metrics/)** - Custom Metrics created asynchronously via CloudWatch Embedded Metric Format (EMF)
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## Getting started
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Find the complete project's [documentation here](https://awslabs.github.io/aws-lambda-powertools-typescript).
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### Installation
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The AWS Lambda Powertools for TypeScript utilities follow a modular approach, similar to the official [AWS SDK v3 for JavaScript](https://github.com/aws/aws-sdk-js-v3).
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Each TypeScript utility is installed as standalone NPM package.
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Install all three core utilities at once with this single command:
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```shell
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npm install @aws-lambda-powertools/logger @aws-lambda-powertools/tracer @aws-lambda-powertools/metrics
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```
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Or refer to the installation guide of each utility:
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👉 [Installation guide for the **Tracer** utility](https://awslabs.github.io/aws-lambda-powertools-typescript/latest/core/tracer#getting-started)
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👉 [Installation guide for the **Logger** utility](https://awslabs.github.io/aws-lambda-powertools-typescript/latest/core/logger#getting-started)
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👉 [Installation guide for the **Metrics** utility](https://awslabs.github.io/aws-lambda-powertools-typescript/latest/core/metrics#getting-started)
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### Examples
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* [CDK](https://github.com/awslabs/aws-lambda-powertools-typescript/tree/main/examples/cdk)
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* [SAM](https://github.com/awslabs/aws-lambda-powertools-typescript/tree/main/examples/sam)
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### Serverless TypeScript Demo application
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The [Serverless TypeScript Demo](https://github.com/aws-samples/serverless-typescript-demo) shows how to use Lambda Powertools for TypeScript.
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You can find instructions on how to deploy and load test this application in the [repository](https://github.com/aws-samples/serverless-typescript-demo).
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## Contribute
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If you are interested in contributing to this project, please refer to our [Contributing Guidelines](https://github.com/awslabs/aws-lambda-powertools-typescript/blob/main/CONTRIBUTING.md).
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## Roadmap
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The roadmap of Powertools is driven by customers’ demand.
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Help us prioritize upcoming functionalities or utilities by [upvoting existing RFCs and feature requests](https://github.com/awslabs/aws-lambda-powertools-typescript/issues), or [creating new ones](https://github.com/awslabs/aws-lambda-powertools-typescript/issues/new/choose), in this GitHub repository.
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## Connect
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* **AWS Lambda Powertools on Discord**: `#typescript` - **[Invite link](https://discord.gg/B8zZKbbyET)**
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* **Email**: [email protected]
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## Credits
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Credits for the Lambda Powertools idea go to [DAZN](https://github.com/getndazn) and their [DAZN Lambda Powertools](https://github.com/getndazn/dazn-lambda-powertools/).
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## License
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This library is licensed under the MIT-0 License. See the LICENSE file.

‎packages/idempotency/jest.config.js

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module.exports = {
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displayName: {
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name: 'AWS Lambda Powertools utility: IDEMPOTENCY',
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color: 'cyan',
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},
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'runner': 'groups',
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'preset': 'ts-jest',
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'transform': {
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'^.+\\.ts?$': 'ts-jest',
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},
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moduleFileExtensions: [ 'js', 'ts' ],
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'collectCoverageFrom': [
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'**/src/**/*.ts',
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'!**/node_modules/**',
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],
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'testMatch': ['**/?(*.)+(spec|test).ts'],
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'roots': [
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'<rootDir>/src',
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'<rootDir>/tests',
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],
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'testPathIgnorePatterns': [
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'/node_modules/',
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],
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'testEnvironment': 'node',
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'coveragePathIgnorePatterns': [
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'/node_modules/',
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'/types/',
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],
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'coverageThreshold': {
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'global': {
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'statements': 100,
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'branches': 100,
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'functions': 100,
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'lines': 100,
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},
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},
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'coverageReporters': [
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'json-summary',
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'text',
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'lcov'
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],
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'setupFiles': [
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'<rootDir>/tests/helpers/populateEnvironmentVariables.ts'
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]
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};

‎packages/idempotency/package.json

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{
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"name": "@aws-lambda-powertools/idempotency",
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"version": "0.0.11",
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"description": "TBD",
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"author": {
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"name": "Amazon Web Services",
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"url": "https://aws.amazon.com"
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},
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"publishConfig": {
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"access": "public"
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},
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"scripts": {
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"commit": "commit",
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"test": "npm run test:unit",
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"test:unit": "jest --group=unit --detectOpenHandles --coverage --verbose",
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"test:e2e:nodejs12x": "RUNTIME=nodejs12x jest --group=e2e",
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"test:e2e:nodejs14x": "RUNTIME=nodejs14x jest --group=e2e",
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"test:e2e:nodejs16x": "RUNTIME=nodejs16x jest --group=e2e",
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"test:e2e": "jest --group=e2e",
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"watch": "jest --watch --group=unit",
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"build": "tsc",
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"lint": "eslint --ext .ts --fix --no-error-on-unmatched-pattern src tests",
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"format": "eslint --fix --ext .ts --fix --no-error-on-unmatched-pattern src tests",
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"package": "mkdir -p dist/ && npm pack && mv *.tgz dist/",
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"package-bundle": "../../package-bundler.sh logger-bundle ./dist",
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"prepare": "npm run build",
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"prepublishOnly": "npm test && npm run lint",
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"preversion": "npm run lint",
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"version": "npm run format && git add -A src",
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"postversion": "git push && git push --tags"
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},
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"homepage": "https://github.com/awslabs/aws-lambda-powertools-typescript/tree/master/packages/idempotency#readme",
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"license": "MIT",
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"main": "./lib/index.js",
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"types": "./lib/index.d.ts",
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"typedocMain": "src/index.ts",
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"files": [
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"lib"
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],
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"repository": {
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"type": "git",
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"url": "git+https://github.com/awslabs/aws-lambda-powertools-typescript.git"
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},
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"bugs": {
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"url": "https://github.com/awslabs/aws-lambda-powertools-typescript/issues"
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},
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"dependencies": {
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"@aws-lambda-powertools/commons": "^1.2.1"
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},
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"keywords": [
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"aws",
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"lambda",
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"powertools",
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"serverless",
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"nodejs"
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]
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}

‎packages/idempotency/src/IdempotencyOptions.ts

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import { PersistenceLayer } from './persistence/PersistenceLayer';
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type IdempotencyOptions = {
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dataKeywordArgument: string
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persistenceStore: PersistenceLayer
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};
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export { IdempotencyOptions };

‎packages/idempotency/src/makeFunctionIdempotent.ts

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/* eslint-disable @typescript-eslint/no-explicit-any */
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import { AnyFunction } from './types/AnyFunction';
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import { IdempotencyOptions } from './IdempotencyOptions';
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const makeFunctionIdempotent = <U>(
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fn: AnyFunction<U>,
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_options: IdempotencyOptions
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): (...args: Array<any>) => Promise<U | void> => (...args) => fn(...args);
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export { makeFunctionIdempotent };

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