Matomo Tracker

Forked from the package matomo by poitch.

A fully cross-platform wrap of the Matomo tracking client for Flutter, using the Matomo Tracking API.

Getting Started

As early as possible in your application, you need to configure the Matomo Tracker to pass the URL endpoint of your instance and your Site ID.

await MatomoTracker.instance.initialize(
    siteId: siteId,
    url: 'https://example.com/matomo.php',
);

If you need to use your own Visitor ID, you can pass it at the initialization of MatomoTracker as is:

await MatomoTracker.instance.initialize(
    siteId: siteId,
    url: 'https://example.com/matomo.php',
    visitorId: '2589631479517535',
);

To track views simply add TraceableClientMixin on your State:

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> with TraceableClientMixin {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Text('Hello World!'),
      ),
    );
  }

  @override
  String get traceName => 'Created HomePage'; // optional

  @override
  String get traceTitle => widget.title;
}

If you are in a StatelessWidget you can use the TraceableWidget widget:

class MyHomePage extends StatelessWidget {
  const MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  Widget build(BuildContext context) {
    return TraceableWidget(
      traceName: 'Created HomePage', // optional
      traceTitle: title,
      child: Scaffold(
        appBar: AppBar(
          title: Text(title),
        ),
        body: Center(
          child: Text('Hello World!'),
        ),
      ),
    );
  }
}

You can also optionally call directly trackScreen or trackScreenWithName to track a view.

For tracking goals and, events call trackGoal and trackEvent respectively.

A value can be passed for events:

MatomoTracker.instance.trackEvent(
    name: 'eventName',
    action: 'eventAction',
    eventValue: 18,
);

Using userId

If your application uses authentication and you wish to have your visitors including their specific identity to Matomo, you can use the Visitor property userId with any unique identifier from your back-end, by calling the setVisitorUserId() method. Here's an example on how to do it with Firebase:

  String userId = auth.currentUser?.email ?? auth.currentUser!.uid;
  MatomoTracker.instance.setVisitorUserId(userId);

Opting Out

If you want to offer a way for the user to opt out of analytics, you can use the setOptOut() call.

MatomoTracker.instance.setOptOut(optout: true);

Using Dimensions

If you want to track Visit or Action dimensions you can either use the trackDimensions (if it's a Visit level dimension) or provide data in the optional dimensions param of trackEvent (if it's an Action level dimension):

MatomoTracker.instance.trackDimensions({
  'dimension1': '0.0.1'
});

MatomoTracker.instance.trackEvent(
    name: 'eventName',
    action: 'eventAction',
    eventValue: 18,
    dimensions: {'dimension2':'guest-user'}
);

You can similarly track dimensions on Screen views with:

MatomoTracker.instance.trackScreenWithName(
      widgetName: "Settings",
      eventName: "screen_view",
      dimensions: {'dimension1': '0.0.1'}
    );

Contributors

_{Guillaume Roux}	_{Jêrôme Poichet}	_{Marvin Möltgen}	_{Pierre Monier}	_{Krille Fear}	_Scolnet
_Null	_Null	_Meï	_{Paula Petcu}	_{Chris Tomlinson}	_{Johann Schramm}
_Lsaudon	_Null	_{Lukas Lihotzki}	_{David Serrano Canales}