babel-plugin-ts-definitions-to-proptypes

A Babel plugin to generate React PropTypes from TypeScript definitinos.

Examples

// Example.d.ts
// Before
import React from 'react';

export interface Props {
  name?: string;
}

// After
import React from 'react';
import PropTypes from 'prop-types';

export const Props = {
  name: PropTypes.string
};

// Example.js
import React from 'react';
import Props from './Example.d.ts';

export class Example extends React.Component {
  static propTypes = Props;

  render() {
    return <div />;
  }
}

Requirements

Babel 7+
TypeScript 2+

Installation

npm i -D babel-plugin-ts-definitions-to-proptypes

Usage

Add the plugin to your Babel config. It's preferred to enable this plugin for development only, or when building a library.

// babel.config.js
const plugins = [];

if (process.env.NODE_ENV !== 'production') {
  plugins.push('babel-plugin-ts-definitions-to-proptypes');
}

module.exports = {
  // Required
  presets: ['@babel/preset-typescript', '@babel/preset-react']
  plugins,
};

When transpiling down to ES5 or lower, the @babel/plugin-proposal-class-properties plugin is required.

Options

customPropTypeSuffixes (string[]) - Reference custom types directly when they match one of the provided suffixes. This option requires the type to be within the file itself, as imported types would be automatically removed by Babel. Defaults to [].

module.exports = {
  plugins: [['babel-plugin-ts-definitions-to-proptypes', { customPropTypeSuffixes: ['Shape'] }]],
};

// Before
import React from 'react';
import PropTypes from 'prop-types';

const NameShape = PropTypes.string;

interface Props {
  name?: NameShape;
}

class Example extends React.Component<Props> {
  render() {
    return <div />;
  }
}

// After
import React from 'react';
import PropTypes from 'prop-types';

const NameShape = PropTypes.string;

class Example extends React.Component {
  static propTypes = {
    name: NameShape,
  };

  render() {
    return <div />;
  }
}

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