@bacons/expo-metro-runtime/README.md

Tools for making experimental Metro bundler features work

# @bacons/expo-metro-runtime

Temporary utility package for using Metro on web with lazy loading and Fast Refresh.

## Add the package to your npm dependencies

```
yarn add @bacons/expo-metro-runtime
```

## Usage

To add web support to the runtime:

```tsx
import "@bacons/expo-metro-runtime";

// Rest of your app...
```

To enable React Suspense in React Native for all platforms (dev only):

`metro.config.js`

```js
// Learn more https://docs.expo.io/guides/customizing-metro
const { getDefaultConfig } = require("expo/metro-config");
const path = require("path");

const config = getDefaultConfig(__dirname);

config.transformer = {
  experimentalImportBundleSupport: true,
  asyncRequireModulePath: path.resolve(
    "@bacons/expo-metro-runtime/asyncRequire"
  ),
};

module.exports = config;
```

<!--
The Fast Refresh doesn't work if the module is transpiled with TypeScript settings:

```
    "target": "es2019",
    "module": "commonjs",
```

I imagine this is because Metro requires the import/export syntax to be present.
 -->