dtsgenerator

TypeScript d.ts file generator from JSON Schema file or OpenAPI(Swagger) spec file.

Table of Contents

• Install
• Usage
• Migration from v2
• Plug-in
• Development
• ChangeLog
• License

Install

npm install -g dtsgenerator

• Releases

Usage

CLI

$ dtsgen --help
Usage: dtsgenerator [options] <file ... | file patterns using node-glob>

Options:
  -V, --version           output the version number
  -c, --config <file>     set configuration file path.
  --url <url>             input json schema from the url. (default: [])
  --stdin                 read stdin with other files or urls.
  -o, --out <file>        output filename.
  -t, --target <version>  Specify ECMAScript target version: 'ES3', 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018',
                          'ES2019', 'ES2020', or 'ESNEXT' (default).
  --info                  for developer mode. output loaded config and plugin details only.
  --output-ast            output TypeScript AST instead of d.ts file.
  -h, --help              display help for command

Examples:
  $ dtsgen --help
  $ dtsgen --out types.d.ts schema/**/*.schema.json
  $ cat schema1.json | dtsgen -c dtsgen.json
  $ dtsgen -o swaggerSchema.d.ts --url https://raw.githubusercontent.com/OAI/OpenAPI-Specification/master/schemas/v2.0/schema.json
  $ dtsgen -o petstore.d.ts --url https://raw.githubusercontent.com/OAI/OpenAPI-Specification/master/examples/v2.0/yaml/petstore.yaml
  $ dtsgen -c dtsgen-test.json --info

For the configuration file, please refer to the file in the config_sample directory.

NodeJS API

const { default: dtsgenerator, parseSchema } = require('dtsgenerator');

dtsgenerator({
    contents: [parseSchema({/* JsonSchema object */})],
    config: {/* Config object */},
}).then(content => {
    /* Do someting with parsed content */
}).catch(err => {
    /* Handle errors */
});

Use HTTP/HTTPS Proxy

If you need a proxy to fetch the schema, please set the following environment variables.

export http_proxy=http://proxy.example.com:8080/
export https_proxy=http://proxy.example.com:8080/
# If there are exceptionally hosts that do not go through a proxy
export no_proxy=google.com, yahoo.com

Migration from v2

The dtsgenerator v3 has made the following breaking changes from v2.

• Support Plug-in feature. See the Plug-in section for more information.
• Change the command line options.
  • Remove the --namespace option. Use the @dtsgenerator/replace-namespace plug-in instead.
  • Add the --config option. Mainly for setting up the Plug-in.
  • And add more options.
• TypeScript AST is now used internally to generate type definitions.

Plug-in

How to find plug-in

• Search by npm: https://www.npmjs.com/search?q=dtsgenerator%20plugin
• Find by the @dtsgenerator repositories: https://github.com/dtsgenerator
  • @dtsgenerator/replace-namespace : This plug-in is instead the --namespace option on old version.
  • @dtsgenerator/decorate-typename : This plug-in can decorate the output type name.
  • @dtsgenerator/single-quote : This plug-in replace the quote mark to single.

How to create plug-in

1. Scaffold by the command:
   • npm init @dtsgenerator **plugin-name**
2. Edit **plugin-name**/index.ts
3. Do test:
   • npm test
4. Build it:
   • npm run build
5. Publish to npm:
   • npm publish

Development

Debug

Output debug message by debug library.

DEBUG=dtsgen dtsgen schema/news.json

Links about JSON Schema and Swagger

• The home of JSON Schema
• The OpenAPI Specification

Supported spec and features

• JSON Schema

  • Draft-04 and before
  • Draft-07 and before

• OpenAPI

  • OpenAPI Specification version 2.0
  • OpenAPI Specification version 3.0

• supported features in these spec

ChangeLog

v3.19.2 (2024-06-11)

• fixed:
  • Support a negative number by #566. Thank you @maximebiloe 👍

v3.19.1 (2023-08-25)

• features:
  • Update plugins for new TypeScript AST.
  • Changed supported Node.js version to 16 or later. Also, we have confirmed that it works with Node.js v20.

v3.18.0 (2023-03-02)

• features:
  • Support 'application/json' with parameter media type for #551. Thank you @denizkenan 👍

v3.17.0 (2023-02-21)

• features:
  • Return exit code 1 when error occurs by #549. Thank you @lhotamir 👍

v3.16.2 (2022-12-20)

• fixed:
  • Fix to remove deprecated decorators parameters for #547. Thank you @mcollina 👍

v3.16.0 (2022-06-10)

• features:
  • Support 'image/*' media types for #539. Thank you @Geloosa 👍

older versions history

ChangeLogs

License

dtsgenerator is licensed under the MIT license.

Copyright © 2016-2020, Hiroki Horiuchi