https://github.com/metarhia/metaschema

Schema definition and validation 💡
https://github.com/metarhia/metaschema

check database dsl globalstorage hacktoberfest impress javascript js json meta-edu metadata metaprogramming metarhia node nodejs schema type types validate

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Schema definition and validation 💡

• Host: GitHub
• URL: https://github.com/metarhia/metaschema
• Owner: metarhia
• License: mit
• Created: 2017-06-22T11:32:52.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2024-09-22T09:00:20.000Z (4 months ago)
• Last Synced: 2025-01-18T20:51:12.463Z (8 days ago)
• Topics: check, database, dsl, globalstorage, hacktoberfest, impress, javascript, js, json, meta-edu, metadata, metaprogramming, metarhia, node, nodejs, schema, type, types, validate
• Language: JavaScript
• Homepage: https://metarhia.com
• Size: 984 KB
• Stars: 52
• Watchers: 20
• Forks: 18
• Open Issues: 22
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • Contributing: CONTRIBUTING.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE
  • Security: SECURITY.md
  • Authors: AUTHORS

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README

        
# Metaschema

Metadata schema and interface (contract) definition language

[![ci](https://github.com/metarhia/metaschema/workflows/Testing%20CI/badge.svg)](https://github.com/metarhia/metaschema/actions?query=workflow%3A%22Testing+CI%22+branch%3Amaster)

[![snyk](https://snyk.io/test/github/metarhia/metaschema/badge.svg)](https://snyk.io/test/github/metarhia/metaschema)

[![npm version](https://badge.fury.io/js/metaschema.svg)](https://badge.fury.io/js/metaschema)

[![npm downloads/month](https://img.shields.io/npm/dm/metaschema.svg)](https://www.npmjs.com/package/metaschema)

[![npm downloads](https://img.shields.io/npm/dt/metaschema.svg)](https://www.npmjs.com/package/metaschema)

[![license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/metarhia/metaschema/blob/master/LICENSE)

## Installation

```bash

$ npm install metaschema

```

## Examples

```js

const { Schema } = require('metaschema');

const schema = Schema.from({

  name: {

    first: 'string',

    last: 'string',

    third: '?string',

  },

  age: 'number',

  levelOne: {

    levelTwo: {

      levelThree: { type: 'enum', enum: [1, 2, 3] },

    },

  },

  collection: { array: { array: 'number' } },

});

const data = {

  name: {

    first: 'a',

    last: 'b',

  },

  age: 5,

  levelOne: { levelTwo: { levelThree: 1 } },

  collection: [

    [1, 2, 3],

    [3, 5, 6],

  ],

};

console.log(schema.check(data));

// Output:

// ValidationResult { errors: [], valid: true }

```

## License & Contributors

Copyright (c) 2017-2024 [Metarhia contributors](https://github.com/metarhia/metaschema/graphs/contributors).

Metaschema is [MIT licensed](./LICENSE).\

Metaschema is a part of [Metarhia](https://github.com/metarhia) technology stack.