https://github.com/wmfs/statelint

A validator for Amazon State Language JSON files.
https://github.com/wmfs/statelint

package tymly

Last synced: 16 days ago
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A validator for Amazon State Language JSON files.

• Host: GitHub
• URL: https://github.com/wmfs/statelint
• Owner: wmfs
• License: mit
• Created: 2018-10-07T16:25:14.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2025-05-01T20:28:47.000Z (28 days ago)
• Last Synced: 2025-05-01T21:44:48.733Z (28 days ago)
• Topics: package, tymly
• Language: JavaScript
• Size: 273 KB
• Stars: 8
• Watchers: 7
• Forks: 3
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

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README

        
# statelint

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An npm package providing a validator for [Amazon States Language](https://states-language.net/spec.html) JSON files. Usable from the command-line or as a library.

This package is derived from Amazon Web Services Labs' [awslabs/statelint](https://github.com/awslabs/statelint) and is up to date with [Amazon States Language](https://states-language.net/) as of [September 7, 2023](https://states-language.net/#september-7-2023).

## From the Command-line 

### Installation

```sh

npm install --global @wmfs/statelint

```

### Usage

```javascript

statelint state-machine-spec [state-machine-spec...]

```

There are no options. If you see no output, your state machine is fine.

## As a library 

### Installation

```sh

npm install --save @wmfs/statelint

```

### Usage

```javascript

const stateLint = require('@wmfs/statelint')

const problems = stateLint.validate(json)

if (problems.length !== 0) {

  console.log('Oh dear!')

  problems.forEach(p => console.log(`ERROR: ${p}`)

}

```

* `json` is the state machine to validate as a JSON object.

`stateLint.validate` returns an array or error strings. If the array is empty, the state machine is fine. If not, then there's a problem! The validator is exhaustive, so it will report every problem it finds, not simply bail at the first thing. The error messages have the general form ` `.

## Contributing

Bug reports and pull requests are welcome on GitHub. Please be aware of our [Code of Conduct](https://github.com/wmfs/statelint/blob/master/CODE_OF_CONDUCT.md)

## License

Licensed under the terms of the [MIT license](https://github.com/wmfs/statelint/blob/master/LICENSE). Copyright (c) 2018 West Midlands Fire Service