astro/packages/integrations/partytown/README.md

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# @astrojs/partytown 🎉
This **[Astro integration][astro-integration]** enables [Partytown](https://partytown.builder.io/) in your Astro project.
Partytown is a lazy-loaded library to help relocate resource intensive scripts into a [web worker](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API), and off of the [main thread](https://developer.mozilla.org/en-US/docs/Glossary/Main_thread).
## Installation
There are two ways to add integrations to your project. Let's try the most convenient option first!
### (experimental) `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/partytown`, run the following from your project directory and follow the prompts:
```sh
# Using NPM
npx astro add partytown
# Using Yarn
yarn astro add partytown
# Using PNPM
pnpx astro add partytown
```
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/partytown` integration like so:
```
npm install @astrojs/partytown
```
Then, apply this integration to your `astro.config.*` file using the `integrations` property:
__astro.config.mjs__
```js
import partytown from '@astrojs/partytown';
export default {
// ...
integrations: [partytown()],
}
```
## Getting started
Partytown should be ready-to-use with zero config. If you have an existing 3rd party script on your site, try adding the `type="text/partytown"` attribute:
```diff
- <script src="fancy-analytics.js"></script>
+ <script type="text/partytown" src="fancy-analytics.js"></script>
```
If you open the "Network" tab from [your browser's dev tools](https://developer.chrome.com/docs/devtools/open/), you should see the `partytown` proxy intercepting this request.
[Head to the Partytown docs](https://partytown.builder.io/configuration) for configuration options and more usage examples. You can 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