https://github.com/ajv-validator/json-schema-migrate

Migrate JSON-Schema draft-04 to draft-07, draft-2019-09 or draft-2020-12
https://github.com/ajv-validator/json-schema-migrate

json-schema

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Migrate JSON-Schema draft-04 to draft-07, draft-2019-09 or draft-2020-12

• Host: GitHub
• URL: https://github.com/ajv-validator/json-schema-migrate
• Owner: ajv-validator
• License: mit
• Created: 2017-03-24T23:44:33.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2021-03-28T08:59:29.000Z (over 3 years ago)
• Last Synced: 2024-08-16T21:56:10.125Z (about 2 months ago)
• Topics: json-schema
• Language: TypeScript
• Homepage:
• Size: 32.2 KB
• Stars: 25
• Watchers: 6
• Forks: 4
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

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README

        
# json-schema-migrate

Migrate JSON-Schema from draft-04 to draft-07, draft-2019-09 or draft-2020-12

[![build](https://github.com/ajv-validator/json-schema-migrate/workflows/build/badge.svg)](https://github.com/ajv-validator/json-schema-migrate/actions?query=workflow%3Abuild)

[![npm](https://img.shields.io/npm/v/json-schema-migrate)](https://www.npmjs.com/package/json-schema-migrate)

[![coverage](https://coveralls.io/repos/github/ajv-validator/json-schema-migrate/badge.svg?branch=master)](https://coveralls.io/github/ajv-validator/json-schema-migrate?branch=master)

## Install

```

npm install json-schema-migrate

```

## Usage

```javascript

const migrate = require("json-schema-migrate")

const schema = {

  id: "my-schema",

  minimum: 1,

  exclusiveMinimum: true,

}

migrate.draft7(schema)

// or migrate.draft2019(schema)

// or migrate.draft2020(schema)

console.log(schema)

// {

//  $id: 'my-schema',

//  exclusiveMinimum: 1

// }

```

You can access Ajv instance that is used to migrate schema using `migrate.getAjv` function:

```javascript

console.log(migrate.getAjv().errorsText(errors))

```

## Changes in schemas after migration

- `id` is replaced with `$id`

- `$schema` value becomes draft-07, draft-2019-09 or draft-2020-12 meta-schema

- draft-04 boolean form of `exclusiveMaximum/Minimum` is replaced with the current number form

- `enum` with a single allowed value is replaced with `const`

- Non-standard `constant` is replaced with `const`

- empty schema is replaced with `true`

- schema `{"not":{}}` is replaced with `false`

- `draft2019` function additionally replaces:

  - `definitions` with `$defs`

  - `dependencies` with `dependentRequired` and `dependentSchemas`

  - `"id": "#foo"` with `"$anchor": "foo"`

  - `"id": "schema#foo"` with `"$id": "schema", "$anchor": "foo"`

- `draft2020` function additionally replaces array form of `items` with `prefixItems` (and `additionalItems` with `items`)

## License

[MIT](https://github.com/epoberezkin/json-schema-migrate/blob/master/LICENSE)