What is CodePush and how to use it for OTA updates?

Question

Accepted Answer

**CodePush** — OTA (Over-The-Air) updates for React Native.

**Setup:**
```bash
npm install react-native-code-push
```

**Configure in index.js:**
```tsx
import codePush from 'react-native-code-push';

const App = () => <MainApp />;

export default codePush({
  checkFrequency: codePush.CheckFrequency.ON_APP_RESUME,
  installMode: codePush.InstallMode.IMMEDIATE,
})(App);
```

**Manual check:**
```tsx
import codePush from 'react-native-code-push';

async function checkForUpdates() {
  const update = await codePush.checkForUpdate();
  if (update) {
    await codePush.sync({
      installMode: codePush.InstallMode.IMMEDIATE,
    });
  }
}
```

**Features:**
- Instant updates without app store.
- Rollback support.
- Multiple deployment keys.
- Silent or user-prompted updates.

React Native: What is CodePush and how to use it for OTA updates?