https://github.com/wmfs/asl-choice-processor

For determining the next state given an Amazon States Language "Choices" definition and a set of values.
https://github.com/wmfs/asl-choice-processor

amazon-states-language package tymly

Last synced: 16 days ago
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For determining the next state given an Amazon States Language "Choices" definition and a set of values.

• Host: GitHub
• URL: https://github.com/wmfs/asl-choice-processor
• Owner: wmfs
• License: mit
• Created: 2018-06-11T09:07:56.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2025-05-02T00:37:25.000Z (28 days ago)
• Last Synced: 2025-05-02T01:27:34.099Z (28 days ago)
• Topics: amazon-states-language, package, tymly
• Language: JavaScript
• Homepage:
• Size: 309 KB
• Stars: 4
• Watchers: 6
• Forks: 2
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# asl-choice-processor

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> For determining the next state given an Amazon States Language "Choices" definition and a set of values. 

### Useful links

* [Amazon States Language specification (Apache License, Version 2.0)](https://states-language.net/spec.html#choice-state)

* [Choice](http://docs.aws.amazon.com/step-functions/latest/dg/amazon-states-language-choice-state.html#amazon-states-language-choice-state-rules) state documentation

## Install

```bash

$ npm install asl-choice-processor --save

```

## Usage

```javascript

const choiceProcessor = require('asl-choice-processor')

const calculateNextState = choiceProcessor(

  {

    Choices: [

      {

        Variable: '$.foo',

        NumericEquals: 1,

        Next: 'FirstMatchState'

      },

      {

        Variable: '$.foo',

        NumericEquals: 2,

        Next: 'SecondMatchState'

      }

    ],

    Default: 'DefaultMatchState'

  }

)

calculateNextState( {foo: 1} ) // FirstMatchState

calculateNextState( {foo: 2} ) // SecondMatchState

calculateNextState( {foo: 3} ) // DefaultMatchState

```

## Tests

```bash

$ npm test

```

## License

[MIT](https://github.com/wmfs/tymly/packages/asl-choice-processor/blob/master/LICENSE)