bloc_event_logger

A simple and customizable BlocObserver for flutter_bloc to log Bloc events, state changes, errors, and transitions with clean and readable output.
Helps developers debug and monitor their Bloc state management effectively.

Features

• Logs all Bloc events added
• Logs state changes (onChange)
• Logs errors (onError)
• Logs transitions (onTransition)
• Easy to integrate and customize

Installation

Add this to your package's pubspec.yaml:

dependencies:
  bloc_event_logger: ^0.1.0

Then run:

flutter pub get

Usage

Set the Bloc.observer to an instance of BlocEventLogger early in your app, for example in main.dart:

import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:bloc_event_logger/bloc_event_logger.dart';

void main() {
  Bloc.observer = const BlocEventLogger();
  runApp(MyApp());
}

Now, all Bloc events, state changes, errors, and transitions will be logged automatically.

Example

class CounterBloc extends Bloc<CounterEvent, int> {
  CounterBloc() : super(0) {
    on<Increment>((event, emit) => emit(state + 1));
  }
}

void main() {
  Bloc.observer = const BlocEventLogger();
  final bloc = CounterBloc();

  bloc.add(Increment());
}