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Guide
Plugin
API
Guide
Plugin
API

Write a plugin

Let's inject a global component as an example to see how to define and use plugins.

TIP

In order to get better type hints, you can install @rspress/shared in the project, and then import the RspressPlugin type through import type { RspressPlugin } from '@rspress/shared'.

1. Define a plugin

plugin.ts
import type { RspressPlugin } from '@rspress/shared';

export function pluginExample(slug: string): RspressPlugin {
  // Component path, you need to implement the content of the component yourself
  const componentPath = path.join(__dirname, 'Example.tsx');
  return {
    name: 'plugin-example',
    // Path to global components
    globalUIComponents: [componentPath],
    // Global variable definitions for build phase
    builderConfig: {
      source: {
        define: {
          'process.env.SLUG': JSON.stringify(slug),
        },
      },
    },
  };
}
Example.tsx
import React from 'react';

const Example = () => {
  console.log(process.env.SLUG);
  return <div>Example</div>;
};

export default Example;

A plugin is generally a function that receives some plugin params (optional) and returns an object that contains the name of the plugin and other config.

In the above example, we define a plugin named plugin-example, which will define a global environment variable process.env.SLUG during the build phase, and inject a global component Example.tsx in the document.

2. Use a plugin

Register plugins via plugins in rspress.config.ts:

rspress.config.ts
import { pluginExample } from './plugin';

export default {
  plugins: [pluginExample('test')],
};

Then the Example component will be injected into the page and we can access the process.env.SLUG variable in the component.