astro/packages/integrations/react/README.md

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# @astrojs/react ⚛️
This **[Astro integration][astro-integration]** enables server-side rendering and client-side hydration for your [React](https://reactjs.org/) components.
## Installation
There are two ways to add integrations to your project. Let's try the most convenient option first!
### `astro add` command
Astro includes a CLI tool for adding first party integrations: `astro add`. This command will:
1. (Optionally) Install all necessary dependencies and peer dependencies
2. (Also optionally) Update your `astro.config.*` file to apply this integration
To install `@astrojs/react`, run the following from your project directory and follow the prompts:
```sh
# Using NPM
npm run astro add react
# Using Yarn
yarn astro add react
# Using PNPM
pnpm astro add react
```
If you run into any hiccups, [feel free to log an issue on our GitHub](https://github.com/withastro/astro/issues) and try the manual installation steps below.
### Install dependencies manually
First, install the `@astrojs/react` integration like so:
```sh
npm install @astrojs/react
```
Most package managers will install associated peer dependencies as well. Still, if you see a "Cannot find package 'react'" (or similar) warning when you start up Astro, you'll need to install `react` and `react-dom`:
```sh
npm install react react-dom
```
Now, apply this integration to your `astro.config.*` file using the `integrations` property:
__`astro.config.mjs`__
```js
import react from '@astrojs/react';
export default {
// ...
integrations: [react()],
}
```
## Getting started
To use your first React component in Astro, head to our [UI framework documentation][astro-ui-frameworks]. You'll explore:
- 📦 how framework components are loaded,
- 💧 client-side hydration options, and
- 🪆 opportunities to mix and nest frameworks together
Also check our [Astro Integration Documentation][astro-integration] for more on integrations.
[astro-integration]: https://docs.astro.build/en/guides/integrations-guide/
[astro-ui-frameworks]: https://docs.astro.build/en/core-concepts/framework-components/#using-framework-components