flog_logger

Lightweight structured logger for Flutter. Outputs [LEVEL][Tag] message format that flog parses natively.

Usage

import 'package:flog_logger/flog_logger.dart';

// One logger per module — tag is fixed at creation.
final log = FlogLogger('Network');

log.i('-> GET /api/users');
log.d('Response: 200 OK (128ms)');
log.w('Retry #2 after timeout');
log.e('Connection refused', error: e, stackTrace: st);

Full-word methods also available:

log.info('-> GET /api/users');
log.debug('Response: 200 OK');
log.warning('Retry #2');
log.error('Connection refused', error: e);

Output

[INFO][Network] -> GET /api/users
[DEBUG][Network] Response: 200 OK (128ms)
[WARNING][Network] Retry #2 after timeout
[ERROR][Network] Connection refused

With flog

Start flog in a separate terminal — it auto-discovers your Flutter app and displays these logs with level coloring, tag filtering, search, bookmarks, and more.

# Install flog
curl -fsSL https://raw.githubusercontent.com/shaomingqing/flog/master/install.sh | bash

# Run it
flog

License

MIT