talker 2.1.1-dev.1

Advanced and simple error handler and logger for dart and flutter apps with history, sharing, customization, etc.

Advanced error handler and logger for dart and flutter apps ☎️

Log your app actions, catch and handle exceptions and errors, show alerts and share log reports
Show some ❤️ and star the repo to support the project!

Motivation

🚀  The main goal of the project provide ability to understand where the error occurs in a short time
✅  Can work with different state managements
✅  Can work with any crash reporting tool (Firebase Crashlytics, Sentry, Your own, etc)
✅  Flutter app logs UI output at screen
✅  Integrated logs and exceptions history
✅  Showing UI exception alerts

Packages

Talker is designed for any level of customization.

Package	Version	Description
talker		Main dart package for logging and error handling
talker_flutter		Flutter extensions for talker Colored Flutter app logs (iOS and Android), logs list screen, showing error messages at UI out of the box, route observer, etc
talker_logger		Customizable pretty logger for dart/flutter apps
talker_dio_logger		Best logger for dio http calls

Table of contents

• Motivation
• Packages
• Get Started
• Get Started Flutter
• Customization
• Talker Flutter
• Features list
• Coverage
• Additional information

Get Started

Follow these steps to the coolest experience in error handling

Add dependency

dependencies:
  talker: ^2.1.0

Easy to use

You can use Talker instance everywhere in your app
Simple and concise syntax will help you with this

final talker = Talker();
// Handle exceptions and errors
try {
  // your code...
} on Exception catch (e, st) {
    talker.handle(e, st, 'Exception with');
}

// Log your app info
talker.info('App is started');
talker.critical('❌ Houston, we have a problem!');
talker.error('🚨 The service is not available');

More examples you can get here

Get Started Flutter

//TODO:

❗️ Attention ❗️

Logs are truncated / cut by the console

Latest Flutter stable release have print method bug issues/110236
But with Talker you can solve it with passing your own output/print method

If you want to see full logs in console - pass debugPrint as ouput callback method in Talker constructor

final talker = Talker(
  loggerOutput: debugPrint,
);

iOS logs colors

There is a problem with the color palette of logs when launching the app on iOS. In this case, the console cannot read the ansi colors that are used by the library.

For disable colors in iOS application you can setup this loggerSettings field

  final talker = Talker(
    loggerSettings: TalkerLoggerSettings(
      enableColors: !Platform.isIOS,
    ),
  );

⚙️ Customization

Configure the error handler and logger for yourself

final talker = Talker(
    /// Your own observers to handle errors's exception's and log's
    /// like Crashlytics or Sentry observer
    observers: [],
    settings: const TalkerSettings(
      /// You can enable/disable all talker processes with this field
      enabled: true,
      /// You can enable/disable saving logs data in history
      useHistory: true,
      /// Length of history that saving logs data
      maxHistoryItems: 100,
      /// You can enable/disable console logs
      useConsoleLogs: true,
    ),
    /// Setup your implementation of logger
    logger: TalkerLogger(),
    ///etc...
  );

More examples you can get here

Talker Flutter

Often you need to check what happening in the application when there is no console at hand.
There is a talker_flutter package for this situations.

Get Started with talker_flutter

Follow these steps to implement talker_flutter in your application

Add dependency

dependencies:
  talker_flutter: ^2.0.6

Easy to use

You can use TalkerScreen everywhere in your app At Screen, BottomSheet, ModalDialog, etc...

final talker = Talker(
  loggerOutput: debugPrint,
);

Navigator.of(context).push(
  MaterialPageRoute(
    builder: (context) => TalkerScreen(talker: talker),
  )
);

TalkerScreen usage example

TalkerWrapper

In addition to the above,
talker_flutter is able to show default and custom error messages and another status messages

final talker = Talker(
  loggerOutput: debugPrint,
);

TalkerWrapper(
  talker: talker,
  options: const TalkerWrapperOptions(
    enableErrorAlerts: true,
  ),
  child: /// Application or the screen where you need to show messages
),

In order to understand in more details - you can check this article "Showing Flutter custom error messages"

TalkerWrapper usage example

See full application example with BLoC and navigation here

The talker_flutter package have a lot of another widgets like TalkerBuilder, TalkerListener, etc. You can find all of them in code documentation.

Features list

✅ Logging

• ✅ Filtering

• ✅ Formatting

• ✅ Color logs

• ✅ LogLevels (info, verbose, warning, debug, error, critical, fine, good)

• ✅ Customization for filtering, formatting and colors

• 🚧 Separation from system's and another flutter logs

• 🚧 Collapsible feature for huge logs

• 🚧 Logs grouping

✅ Errors handling

• ✅ Errors and Exceptions identification
• ✅ StackTrace
• 🚧 Error level identification

✅ Flutter

• ✅ Application logs sharing

• ✅ Logs history list screen

• ✅ HTTP cals logging

• ✅ TalkerRouteObserver - router logging (which screen is opened, which is closed)

• ✅ TalkerWrapper - Showing errors and exceptions messages at UI

• ✅ TalkerListener - Listen logs data at application UI

• ✅ TalkerBuilder - UI builder to Logs List showing custom UI

• ✅ Android/Windows/Web application logs colors

• 🚧 iOS/MacOS application logs colors

✅ Logs and errors history saving

✅ TalkerObserver - handle all logs, errors, exceptions for integrations (Sentry, Crashlytics)

Coverage

Error handling is a very important task
You need to choose carefully if you want to use a package for exceptions handling solution
Therefore, the project is 100% covered by tests

Additional information

The project is under development and ready for your pull-requests and issues 👍
Thank you for support ❤️

Thanks to all contributors of this package

For help getting started with 😍 Flutter, view online documentation, which offers tutorials, samples, guidance on mobile development, and a full API reference.