Docusaurus Plugin react-docgen-typescript

A Docusaurus 2.x plugin that help generate and consume auto-generated docs from react-docgen-typescript.

Installation

Grab from NPM and install along with react-docgen-typescript:

npm i --save-dev docusaurus-plugin-react-docgen-typescript react-docgen-typescript

Usage

Inside your docusaurus.config.js add to the plugins field and configure with the src option with full glob support :+1:.

module.exports = {
  // ...
  plugins: [
    [
      "docusaurus-plugin-react-docgen-typescript",
      /** @type {import('docusaurus-plugin-react-docgen-typescript').Options} */
      {
        // pass in a single string or an array of strings
        src: ["path/to/**/*.tsx", "!path/to/**/*test.*"],
        parserOptions: {
          // pass parserOptions to react-docgen-typescript
          // here is a good starting point which filters out all
          // types from react
          propFilter: (prop, component) => {
            if (prop.parent) {
              return !prop.parent.fileName.includes("@types/react");
            }

            return true;
          },
        },
      },
    ],
  ],
};

Any pattern supported by fast-glob is allowed here (including negations).

src paths are relative to the location of your docusaurus.config.js. For example, if you had a directory structure like:

.
├── LICENSE
├── README.md
├── package.json
├── src
...
├── website
│   ├── README.md
│   ├── babel.config.js
│   ├── blog
│   ├── docs
│   ├── docusaurus.config.js
|   ...
│   ├── src
│   └── yarn.lock
└── yarn.lock

Then to document all of your JSX components in your src/ directory, you would use this path: ../src/**/*.jsx.

Reading Annotations

Using the default settings, annotations are stored inside of the .docusaurus directory. The @docgen alias is set to ensure stable access to these files.

Build a Prop Table

Most of the time props will want to be shown as API information to a particular component. For convenience, we can use a simple hook from this package to dynamically import .json files:

import { useDynamicImport } from "docusaurus-plugin-react-docgen-typescript/useDynamicImport";

type MyProps = {
  /* ... */
};

export const PropTable = ({ name }) => {
  const props = useDynamicImport<MyProps>(name);

  if (!props) {
    return null;
  }

  return (
    <table>
      <thead>
        <tr>
          <th>Name</th>
          <th>Type</th>
          <th>Default Value</th>
          <th>Required</th>
          <th>Description</th>
        </tr>
      </thead>
      <tbody>
        {Object.keys(props).map((key) => {
          return (
            <tr key={key}>
              <td>
                <code>{key}</code>
              </td>
              <td>
                <code>{props[key].type?.name}</code>
              </td>
              <td>
                {props[key].defaultValue && (
                  <code>{props[key].defaultValue.value}</code>
                )}
              </td>
              <td>{props[key].required ? "Yes" : "No"}</td>
              <td>{props[key].description}</td>
            </tr>
          );
        })}
      </tbody>
    </table>
  );
};

N.b. If you use global: true, then you must use the useGlobalData hook to access the docgen data. You cannot use useDynamicImport.

Options

| Name | Type | Required | Description | | ----------------- | ---------------------------------------------------------------------------------- | -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- | | src | string | string[] | Yes | Tell react-docgen where to look for source files. | | global | boolean | No | Store results so they're globally accessible in docusaurus | | route | RouteConfig | No | Makes docgen results accessible at the specified URL. Note modules cannot be overridden. | | tsConfig | string | No | Specify the path to your custom tsconfig file (note that in most cases the default config is sufficient) | | compilerOptions | CompilerOptions | No | Pass custom ts compiler options in lieu of of a custom tsConfig | | parserOptions | ParserOptions | No | Options passed to react-docgen-typescript |