@ovotech/json-refs
Json Refs Resolver
Last updated 4 months ago by ikerin .
Apache-2.0 · Repository · Bugs · Original npm · Tarball · package.json
$ cnpm install @ovotech/json-refs 
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JSON Refs

Recursively downloads files referenced in a json-schema, and resolves all the references and provide a map to the referenced contents while its at it.

Usage

yarn add @ovotech/json-refs
import { resolveRefs } from '@ovotech/json-refs';

// Where the contents of https://example.com/assets/test.yml are
// UserResponse:
//   - type: 'object'

const schema = {
  test: { $ref: 'https://example.com/assets/test.yml#/UserResponse' },
};

const resolved = await resolveRefs(schema);

console.log(resolved);

Should output

{ schema:
   { test:
      { '$ref': 'https://example.com/assets/test.yaml#/UserResponse' } },
  refs:
   { 'https://example.com/assets/test.yaml': { UserResponse: { type: 'object' } },
     'https://example.com/assets/test.yaml#/UserResponse': { type: 'object' } },
  uris: [ 'https://example.com/assets/test.yaml' ] }

The resolved refs include all files with their parsed contents (yaml or json), as well as flat list of links to the individual refs. There is also a list of all the files downloaded or local file referenced in uris.

Behavior

First of all it would parse the schema, searching for $refs if the refs are in the file itself then it would just return those. If there are any external links, it would collect all the URLs present, and would download all of them in parallel. If there are any external links in the downloaded files, it would attempt another batch, until all resources are resolved.

Since it would fill in its internal reference library on each pass, circular references are allowed and would only be resolved once.

Api

resolveRefs

function async resolveRefs(schema: JsonPointerObject) => Promise<{
  schema: JsonPointerObject,
  refs: { [key: string]: JsonPointerObject,
  uris: string[]
}>

resolveRefsFile The same as resolveRefs, but start with downloading and or parsing the initial schema. Can take any url or path to a local file.

function async resolveRefsFile(file: string) => Promise<{
  schema: JsonPointerObject,
  refs: { [key: string]: JsonPointerObject,
  uris: string[]
}>

Running the tests

You can run the tests with:

yarn test

Coding style (linting, etc) tests

Style is maintained with prettier and eslint

yarn lint

Deployment

Deployment is preferment by lerna automatically on merge / push to master, but you'll need to bump the package version numbers yourself. Only updated packages with newer versions will be pushed to the npm registry.

Contributing

Have a bug? File an issue with a simple example that reproduces this so we can take a look & confirm.

Want to make a change? Submit a PR, explain why it's useful, and make sure you've updated the docs (this file) and the tests (see test folder).

License

This project is licensed under Apache 2 - see the LICENSE file for details

Current Tags

  • 0.3.2                                ...           latest (4 months ago)

5 Versions

  • 0.3.2                                ...           4 months ago
  • 0.3.1                                ...           5 months ago
  • 0.3.0                                ...           a year ago
  • 0.2.1                                ...           a year ago
  • 0.2.0                                ...           a year ago
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