react-native-app-logs

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react-native-app-logs

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Access native logs from JS code

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# react-native-app-logs

Access native logs from JS code

## Installation

```sh
npm install react-native-app-logs
```

## Usage

### Basic usage

The code snippet below will intercept all logs from the main app.

```js
import AppLogs from 'react-native-app-logs';

// ...

AppLogs.configure({ interval: 5 });

AppLogs.registerHandler({
  filter: '[AppName]',
  handler: ({ filter, logs }) => {
    if (logs.length !== 0) {
      Alert.alert(filter, logs.join('\n'));
    }
  },
});
```

### Intercept logs from `NotificationServiceExtension`

On iOS each process has its own logs and they live only within the process (and do not share the logs with other processes).

To intercept logs from `NotificationServiceExtension` you need to:

- give common app group for both `NotificationServiceExtension` and the main app;
- specify `appGroupName` in `AppLogs.configure` method:

```ts
import AppLogs from 'react-native-app-logs';

AppLogs.configure({ appGroupName: 'group.applogs.example', interval: 5 });
```

- add new Pod to your `NotificationServiceExtension`:

```rb
target 'NotificationService' do
  pod 'AppLogs', :path => '../../AppLogsPod/'
end
```

- forward logs from `NotificationServiceExtension` to the main app:

```swift
import AppLogs

class NotificationService: UNNotificationServiceExtension {
    let appLogs: AppLogs = .init()

deinit {
        appLogs.forwardLogsTo(appGroup: "group.applogs.example")
    }
}
```

## Contributing

See the [contributing guide](CONTRIBUTING.md) to learn how to contribute to the repository and the development workflow.

## License

MIT

---

Made with [create-react-native-library](https://github.com/callstack/react-native-builder-bob)

react-native-app-logs

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