countly_flutter_lite 26.1.0

Lightweight and stable Flutter SDK for simple analytics integration.

Countly Flutter Lite SDK

This repository contains the non-bridged and lightweight Flutter Lite SDK which can be integrated into mobile application. The Countly Flutter Lite SDK is intended to be used with Countly Lite, Countly Flex, Countly Enterprise.

What is Countly?

Countly is a product analytics solution and innovation enabler that helps teams track product performance and customer journey and behavior across mobile, web, and desktop applications.

Track, measure, and take action - all without leaving Countly.

• Questions or feature requests? Join the Countly Community on Discord
• Looking for the Countly Server? Countly Server repository

Integrating Countly SDK in your projects

For a detailed description on how to use this SDK check out our documentation.

For an example integration of this SDK, see the Flutter example app in this repository.

This SDK supports the following features:

• Analytics
• User Profiles
• Views
• Consent management
• Device ID management

Installation

In the dependencies: section of your pubspec.yaml, add the following line:

dependencies:
  countly_flutter_lite: <latest_version>

Usage

Initialization

import 'package:countly_flutter_lite/countly_flutter_lite.dart';
import 'package:flutter/widgets.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();

  final config = CountlyConfig(
    appKey: 'YOUR_APP_KEY',
    serverUrl: 'https://your.server.com',
    giveConsent: true,
    enableSDKLogs: true,
  );

  await Countly.init(config);
  runApp(const MyApp());
}

Configuration Options

final config = CountlyConfig(
  appKey: 'YOUR_APP_KEY',           // Required: Your Countly app key
  serverUrl: 'https://server.com',   // Required: Your Countly server URL
  deviceId: 'custom-device-id',      // Optional: Custom device ID
  giveConsent: true,                 // Optional: Grant consent at init
  startWithUnknownConsent: false,    // Optional: Start with unknown consent
  enableSDKLogs: true,               // Optional: Enable logging
  logLevel: LogLevel.verbose,        // Optional: Log verbosity
  enableVisualWarnings: false,       // Optional: Show visual warnings
  customRequestHeaders: {            // Optional: Custom HTTP headers
    'X-Custom-Header': 'value',
  },
  deviceMetricOverrides: {           // Optional: Override device metrics
    '_os': 'CustomOS',
  },
  userProperties: {                  // Optional: Initial user properties
    'name': 'John Doe',
    'tier': 'premium',
  },
  disableOldDataMigration: false,    // Optional: Disable legacy migration
);

// storageMode is optional:
// - if omitted, Flutter Lite uses persistent storage
// - if set (e.g. StorageMode.memory), your explicit value is respected

Recording Events

final sdk = Countly.defaultInstance!;

await sdk.events.record(key: 'button_click');
await sdk.events.record(key: 'item_purchased', count: 3);
await sdk.events.record(key: 'purchase', sum: 29.99);
await sdk.events.record(key: 'video_watched', dur: 120.5);

await sdk.events.record(
  key: 'purchase',
  count: 1,
  sum: 99.99,
  dur: 5.0,
  segmentation: {
    'product_id': 'SKU123',
    'category': 'electronics',
    'tags': ['featured', 'sale'],
  },
);

Recording Views

final sdk = Countly.defaultInstance!;

await sdk.views.startAutoStoppedView('HomePage');
await sdk.views.startAutoStoppedView('ProductPage', segmentation: {
  'category': 'electronics',
});
await sdk.views.endActiveView(segmentation: {
  'exit': 'back_button',
});

User Profiles

final sdk = Countly.defaultInstance!;

await sdk.users.setProperties({
  'name': 'John Doe',
  'email': '[e-mail]',
  'username': 'johndoe',
  'phone': '[phone]',
  'gender': 'M',
  'byear': 1990,
});

await sdk.users.pushToArray('viewed_products', ['SKU123', 'SKU456']);
await sdk.users.addToSet('categories', ['electronics', 'books']);
await sdk.users.pullFromArray('interests', ['outdated']);

Consent Management

final sdk = Countly.defaultInstance!;

await sdk.consents.giveConsent();
await sdk.consents.revokeConsent();

Device ID Management

final sdk = Countly.defaultInstance!;

final deviceId = sdk.deviceId;
await sdk.id.changeWithMerge('user_123456');
await sdk.id.changeWithoutMerge('new_anonymous_id');
await sdk.consents.giveConsent();

Multi-Instance Support

final primary = await Countly.init(config);
final secondary = await Countly.init(config2, instanceKey: 'secondary');

final primaryInstance = Countly.defaultInstance;
final secondaryInstance = Countly.instance('secondary');

await Countly.disposeInstance('secondary');
await Countly.disposeAll();

Custom Logger

class MyLogger implements SdkLogger {
  @override
  bool isEnabled(LogLevel level) => level.index <= LogLevel.info.index;

  @override
  void log(LogLevel level, String message, {Object? error, StackTrace? stack}) {
    print('[${level.name}] $message');
  }
}

final config = CountlyConfig(
  appKey: 'YOUR_APP_KEY',
  serverUrl: 'https://your.server.com',
  logger: MyLogger(),
  enableSDKLogs: true,
);

Security

Security is very important to us. If you discover any issue regarding security, please disclose the information responsibly by sending an email to [e-mail] and not by creating a GitHub issue.

Badges

If you like Countly, why not use one of our badges and give a link back to us so others know about this wonderful platform?

<a href="https://count.ly/f/badge" rel="nofollow"><img style="width:145px;height:60px" src="https://countly.com/badges/dark.svg" alt="Countly - Product Analytics" /></a>

<a href="https://count.ly/f/badge" rel="nofollow"><img style="width:145px;height:60px" src="https://countly.com/badges/light.svg" alt="Countly - Product Analytics" /></a>

How can I help you with your efforts?

Glad you asked! For community support, feature requests, and engaging with the Countly Community, please join us at our Discord Server. We're excited to have you there!

Also, we are on Twitter and LinkedIn if you would like to keep up with Countly related updates.