dts

dtsgenerator

TypeScript d.ts file generate from JSON Schema file

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dtsgenerator

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

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Table of Contents

Install

npm install -g dtsgenerator

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 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

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

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

v3.13.2 (2021-10-08)

  • features:
    • Fix the type generation malformed objects with number-like keys for #523. Thank you for your report @DamianOsipiuk 👍

v3.13.1 (2021-09-29)

  • features:
    • Change the plug-in interface, the PluginContext::inputSchemas to IterableIterator for #521. Thank you @djrollins 👍

v3.13.0 (2021-08-31)

  • features:
    • Support new $schema types for #507.

v3.12.1 (2021-05-19)

  • fixed:
    • Fix referenced parameters not resolved error by #471. Thank you @jschirrmacher 👍

v3.12.0 (2021-05-13)

  • features:
    • Support input type file by #496. Thank you @Christian24 👍
    • Improve the conversion results of parameters property on OpenAPI by #501.

v3.11.0 (2021-05-11)

  • features:
    • Support vendor media types (allow periods in application/*+json) by #497. Thank you @glen-84 👍
  • fixed:
    • Remove to support the readOnly property, because of wrong interpretation by #498. Thank you @hallsbyra 👍

v3.10.0 (2021-04-26)

  • features:
    • Support freeform objects w/ index signature instead of unknown keyword by #488. Thank you @medfreeman 👍
    • Support the content property in Parameters by #472. Thank you for report @npdev453 👍

v3.9.2 (2021-04-19)

  • fixed:
    • Fix nested oneOf & anyOf keywords by #486. Thank you @medfreeman 👍

v3.9.1 (2021-04-16)

  • fixed:
    • Update generate function to use recommended immutable approach for typescript transforms by #483. Thank you again @medfreeman 👍

v3.9.0 (2021-04-13)

  • features:
    • support for additionalItems property by #481. Thank you again @medfreeman 👍

v3.8.0 (2021-04-08)

  • features:
    • full support for minItems & maxItems properties by #476. Thank you @medfreeman 👍

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

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