JSON Schema Markdown Tools

Documenting and validating complex JSON Schemas can be hard. This tool makes it easier by providing a number of scripts that can turn JSON Schema files into readable Markdown documentation that is ready for consumption on GitHub or processed using Jekyll or other static site generators.

These tools have been introduced by Adobe to document Adobe's Experience Data Models (XDM), but can be used for other JSON Schema documents, too.

Requirements

• npm version 3.10.8 or up
• node v8 or up

Example Output

Using the schemas in examples/schemas, the output in examples/docs has been generated.

Installing and running

# clone this project
$ npm install -g @adobe/jsonschema2md

# show usage information
$ jsonschema2md

# run task
# leave out the -v "06", when you have draft-07 schemas
$ jsonschema2md -d examples/schemas -o examples/docs -v "06"
# generated output for whole folder is written to ./examples/docs

JSON Schema Draft Versions

jsonschema2md assumes draft-07 by default. If your schemas are not on draft-07, you can specify the draft version using the -v or --draft flag.

# run against JSON Schema Draft 04
$ jsonschema2md -d examples/schemas -o examples/docs -v 04

# run against JSON Schema Draft 06
$ jsonschema2md -d examples/schemas -o examples/docs -v 06

Text in Templates

Each text which is not provided by the JSON Schema is loaded from an i18n file. With i18n parameter you can change the location of the i18n folder and load your own text file. The folder must contain an locales folder and in this folder there should be an en.json file.

# run against JSON Schema Draft 06
$ jsonschema2md -d examples/schemas -o examples/docs -v 06 -i temp/myFiles

Display custom attributes in the property description

jsonschema2md displays only the attributes of an property which are defined by the JSON Schema standard. If you want to display additional attributes in the property description you could provide a comma separated list with your custom attributes.

$ jsonschema2md -d examples/schemas -o examples/docs -p version,test

Disable header template

In some cases you do not need a header because it does not provide any useful information. With the --header (or -h) parameter you can disable the inclusion of headers.

# run against JSON Schema Draft 06
$ jsonschema2md -d examples/schemas -o examples/docs -v 06 -h false

Using JSON Schema Markdown Tools from npm

You can conveniently use the JSON Schema Markdown Tools from npm. This makes it possible to set up a conversion toolchain for your JSON Schema project that is driven entirely by npm. To do so, first define the dependency by adding this to your "devDependencies" section of package.json

  "devDependencies": {
    "@adobe/jsonschema2md": "^1.0.6"
  }

Then add the following to the "scripts" section of your package.json and adapt accordingly:

"scripts": {
  "prepare": "mkdir -p docs/reference && jsonschema2md -o docs/reference -d schemas/draft-04
}

If you run npm install before running npm run prepare, npm will install the @adobe/jsonschema2md in a node_modules/.bin path, even if you did not install the JSON Schema Markdown beforehand.

Tests

Ensure you have all the dependencies installed via npm install, then run:

npm test

This will run our Jasmine test suite as well as lint the JavaScript according to our style guide (see below).

CI

Continuous integration runs on CircleCI. All pull requests automatically trigger a job that runs the tests by executing the config.yml.

Code Coverage

You can run npm run cover to get a code coverage report, that is, a sense of how much of the project's code is "covered" by the test suite.

Style Guide / Linting

This project uses eslint to enforce JavaScript coding style. To run the linter:

npm run lint

TODOs

• JSON Schema validation:
  • property naming convention
  • vocabulary spellchecking

Contributing

Please see Contributing.md for details. Pull requests are welcome.

License/Copyright

Copyright 2017 Adobe Systems Incorporated. All rights reserved. This file is licensed to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at https://www.apache.org/licenses/LICENSE-2.0