# Rsbuild Guide ## As a script tag If you are using Rsbuild's default HTML template, add the script tag via [html.tags](https://rsbuild.dev/config/html/tags). Refer to the [CDN Guide](https://github.com/aidenybai/react-scan/blob/main/docs/installation/cdn.md) for the available URLs. ```ts // rsbuild.config.ts export default { html: { tags: [ { tag: "script", attrs: { src: "https://cdn.jsdelivr.net/npm/react-scan/dist/auto.global.js", }, append: false, }, ], }, }; ``` If you are using a custom HTML template, add the script tag to your template file. ```html ``` ## As a module import In your project entrypoint (e.g. `src/index`, `src/main`): ```jsx // src/index.jsx // must be imported before React and React DOM import { scan } from "react-scan"; import React from "react"; scan({ enabled: true, }); ``` If you want react-scan to also run in production, use the react-scan/all-environments import path ```diff - import { scan } from "react-scan"; + import { scan } from "react-scan/all-environments"; ``` > [!CAUTION] > React Scan must be imported before React (and other React renderers like React DOM) in your entire project, as it needs to hijack React DevTools before React gets to access it.