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

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 braking 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

v3.7.1 (2021-02-18)

• fixed:
  • add truthy check for value in mergeSchema by #474. Thank you @ricokahler 👍

v3.7.0 (2021-01-05)

• features:
  • Add the void type support by #468. Thank you for your propose @henhal by #445 👍

v3.6.0 (2020-12-25)

• features:
  • Improve the type result of oneOf/anyOf property by #467. Thank you for your report @crizo23 by #452 👍
  • Improve the internal eslint configuration by #466. Thank you @Goldziher 👍

v3.5.0 (2020-12-21)

• features:
  • Add to export ts object for to use the same version TypeScript in all plugins by #465.

v3.4.1 (2020-12-16)

• fixed:
  • Fix using package without esModuleInterop setting on tsconfig by #460. Thank you @wszydlak 👍
  • Update TypeScript v4 by #462. Thank you @wszydlak 👍
  • Add to support the null type enum value by #464. Thank you for your report @Goldziher 👍

v3.4.0 (2020-12-15)

• features:
  • Add support for multipart media type by #455. Thank you @wszydlak 👍
  • Add support for passing config object with NodeJS API usage by #456. Thank you @wszydlak 👍

v3.3.1 (2020-10-05)

• fixed:
  • Elements get type "any" instead of the correct one by #448. Thank you for your report @nachtigall-83 👍

v3.3.0 (2020-07-29)

• features:
  • Support the patternProperties by #436. Thank you @nfroidure 👍
• fixed:
  • Definition generated improperly when multiple instances of a resource are inherited by #279. Thank you @btg5679 👍
  • Apply the prettier config on .eslintrc.json.

v3.2.0 (2020-07-20)

• features:
  • Add support for application/octet-stream media type by #431. Thank you @MisterChateau 👍

v3.1.1 (2020-06-23)

• fixed:
  • Cannot load config file of relative path by #428. Thank you @DamianOsipiuk 👍

v3.1.0 (2020-06-22)

• features:
  • Add support for nullable anyOf in OpenApi v3 by #426. Thank you @joost-kersjes-webpower 👍

v3.0.3 (2020-06-15)

• fixed:
  • Fix the command option example by #422. Thank you @maapteh 👍
  • Omit load config error on not config option by #425. Thank you @Christian24 👍

v3.0.2 (2020-06-11)

• fixed:
  • Remove old example by #421. Thank you @maapteh 👍

v3.0.1 (2020-06-09)

• features:
  • Support the plug-in for pre-process and post-process.
  • Change command line options and Support config file.
  • Use the TypeScript AST for intermediate format.

older versions history

ChangeLogs

License

dtsgenerator is licensed under the MIT license.

Copyright © 2016-2020, Hiroki Horiuchi