journiq_flutter_sdk 0.2.1

Journiq deep linking, attribution, and analytics SDK for Flutter. Wraps native Android and iOS SDKs via platform channels.

Journiq Flutter SDK

Official Flutter plugin for Journiq — deep linking, deferred deep links, event tracking, attribution analytics, in-app notifications, and push.

Wraps the native Android SDK and iOS SDK via platform channels.

Features

• Deferred Deep Links — Attribute installs to the link that drove them, even across the app store
• Link Management — Create, list, and retrieve short links programmatically
• Event Tracking — Track conversions and custom events with offline queue and automatic batching
• Analytics — Retrieve link click stats and app configuration
• In-App Notifications — Receive and display real-time in-app notifications with custom UI
• Push Registration — Register FCM device tokens for push notifications
• Cross-platform — Single Dart API backed by native SDKs on both Android and iOS

Requirements

Platform	Minimum Version
Android	API 24 (Android 7.0)
iOS	13.0
Flutter	3.3.0+
Dart	3.11.0+

Installation

Add to your pubspec.yaml:

dependencies:
  journiq_flutter_sdk: ^0.2.1

Then run:

flutter pub get

Quick Start

1. Initialize the SDK

import 'package:journiq_flutter_sdk/journiq_flutter_sdk.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Journiq.configure(apiKey: 'jq_pub_your_key_here');
  runApp(MyApp());
}

2. Check for Deferred Deep Links

final match = await Journiq.deepLinks.checkDeferredDeepLink();
if (match.matched) {
  // Attribution is stored automatically — events will be linked to this deep link
  Navigator.pushNamed(context, match.deepLinkPath ?? '/');
}

3. Handle Incoming URL Scheme Links

// When the app opens via a URL scheme (e.g., myapp://product/123?jq_link=...)
void handleDeepLink(Uri uri) {
  // Extract and store attribution, returns a clean URI for routing
  final cleanUri = Journiq.deepLinks.handleIncomingLink(uri);
  navigateTo(cleanUri.path);
}

4. Track Events

// deepLinkId is automatically attached from the last attribution source
await Journiq.events.track(
  'PURCHASE',
  metadata: {'amount': '29.99', 'currency': 'USD'},
);

// Or pass explicitly if needed
await Journiq.events.track(
  'PURCHASE',
  deepLinkId: 'specific_link_id',
  metadata: {'amount': '29.99', 'currency': 'USD'},
);

4. Create Links

final link = await Journiq.links.create(LinkCreateRequest(
  webUrl: 'https://example.com/product/123',
  title: 'Cool Product',
  deepLinkPath: '/product/123',
  utmSource: 'app',
  utmMedium: 'share',
));
// Share link.shortUrl

5. User Identity

// After login
await Journiq.setIdentity('user_12345');

// On logout
await Journiq.logout();

6. Push Notifications

Register the device's FCM token so the backend can send push and in-app notifications:

import 'package:firebase_messaging/firebase_messaging.dart';

final token = await FirebaseMessaging.instance.getToken();
if (token != null) {
  await Journiq.push.registerToken(token);
}

// Re-register on token refresh
FirebaseMessaging.instance.onTokenRefresh.listen((newToken) {
  Journiq.push.registerToken(newToken);
});

Handle incoming FCM data messages:

FirebaseMessaging.onMessage.listen((RemoteMessage message) {
  // Let the SDK handle Journiq messages (returns true if handled)
  final handled = Journiq.push.handleDataMessage(message.data);
  if (!handled) {
    // Handle your own messages
  }
});

7. In-App Notifications

Listen for new notifications (stream-based)

Journiq.notifications.onNewNotification.listen((notification) {
  print('New: ${notification.title}');
});

Custom Display Handler (recommended)

Register a handler to control exactly how notifications appear in your app:

Journiq.notifications.setDisplayHandler(context, (ctx, notification) {
  // Return a widget to display, or null to suppress
  return MaterialBanner(
    content: Text(notification.title),
    actions: [
      TextButton(
        onPressed: () {
          Journiq.notifications.markAsRead(notification.id);
          JourniqNotifications.reportAction(notification, NotificationAction.tapped);
        },
        child: Text('VIEW'),
      ),
      TextButton(
        onPressed: () {
          JourniqNotifications.reportAction(notification, NotificationAction.dismissed);
        },
        child: Text('DISMISS'),
      ),
    ],
  );
});

Fetch notifications

final result = await Journiq.notifications.getAll(page: 1, limit: 20);
for (final n in result.notifications) {
  print('${n.title} - read: ${n.read}');
}

Mark as read & unread count

await Journiq.notifications.markAsRead(notificationId);
final count = await Journiq.notifications.getUnreadCount();

// Or listen to count changes
Journiq.notifications.onUnreadCountChanged.listen((count) {
  updateBadge(count);
});

API Reference

Journiq

Method	Description
configure({apiKey, baseUrl?})	Initialize the SDK. Call once at app startup.
isInitialized	Whether the SDK has been configured.
setIdentity(userId)	Set user identity for cross-device attribution.
logout()	Remove user identity and clear attribution.
onAppForegrounded()	Trigger event queue flush (call from lifecycle handler).
attributedDeepLinkId	The currently stored deep link ID (read-only).
attributedClickId	The currently stored click ID (read-only).

Journiq.deepLinks

Method	Description
checkDeferredDeepLink()	Check for a deferred deep link match on first open. Auto-stores attribution. Returns MatchResult.
handleIncomingLink(Uri)	Extract attribution from an incoming URL scheme link. Returns clean Uri for routing.

Journiq.links

Method	Description
create(LinkCreateRequest)	Create a new deep link. Returns DeepLink.
list({page, limit})	List deep links with pagination.
get(linkId)	Get a single deep link by ID.

Journiq.events

Method	Description
track(eventName, {deepLinkId?, metadata?})	Track a conversion or custom event. Auto-attaches stored deepLinkId if not provided.
flush()	Force flush queued events immediately.

Journiq.analytics

Method	Description
getLinkStats(linkId)	Get click statistics for a link. Returns LinkStats.
getAppConfig()	Get app configuration. Returns AppConfig.

Journiq.notifications

Method	Description
onNewNotification	Stream of new notifications as they arrive.
onUnreadCountChanged	Stream of unread count changes.
getAll({page, limit, unreadOnly})	Fetch paginated notifications. Returns NotificationsResult.
markAsRead(notificationId)	Mark a notification as read.
getUnreadCount()	Get current unread count.
setDisplayHandler(context, handler)	Register a custom widget builder for incoming notifications.
setActionHandler(handler)	Register a callback for notification tap/dismiss actions.
removeDisplayHandler()	Remove the display handler.

Journiq.push

Method	Description
registerToken(fcmToken)	Register the device FCM token with Journiq.
handleDataMessage(data)	Process an FCM data message. Returns true if handled by Journiq.

Platform Setup

1. Configure URL Schemes in Journiq Dashboard

In the Journiq dashboard, navigate to Apps → your app → Edit and configure:

Field	Example	Description
iOS URL Scheme	myapp://{{path}}	Template used to open your iOS app. {{path}} is replaced with the deep link path at redirect time.
Android URL Scheme	myapp://{{path}}	Template used to construct the Android intent URL.
Bundle ID	com.example.myapp	Your iOS app bundle identifier
Package Name	com.example.myapp	Your Android application ID
App Store URL	https://apps.apple.com/app/id123456	Fallback if app not installed (iOS)
Play Store URL	https://play.google.com/store/apps/details?id=com.example.myapp	Fallback if app not installed (Android)

Important: The {{path}} placeholder is required. When a user clicks a link with deepLinkPath: "product/123", the redirect service generates myapp://product/123.

2. iOS Setup

Install native SDK

cd ios && pod install

Register your URL scheme

Add your custom scheme to ios/Runner/Info.plist:

<key>CFBundleURLTypes</key>
<array>
  <dict>
    <key>CFBundleURLSchemes</key>
    <array>
      <string>myapp</string>
    </array>
    <key>CFBundleURLName</key>
    <string>com.example.myapp</string>
  </dict>
</array>

Replace myapp with the scheme portion of your iOS URL Scheme (everything before ://).

3. Android Setup

The SDK dependency is pulled from Maven Central automatically.

Register your URL scheme

Add an intent filter to your main activity in android/app/src/main/AndroidManifest.xml:

<activity
    android:name=".MainActivity"
    android:launchMode="singleTop"
    ...>

    <!-- Existing intent filters ... -->

    <!-- Journiq deep link URL scheme -->
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data android:scheme="myapp" />
    </intent-filter>
</activity>

Replace myapp with the scheme portion of your Android URL Scheme.

4. Handle Incoming Deep Links in Flutter

Use the app_links package to listen for incoming URLs, then parse them with the Journiq SDK:

import 'package:app_links/app_links.dart';
import 'package:journiq_flutter_sdk/journiq_flutter_sdk.dart';

class DeepLinkHandler {
  final _appLinks = AppLinks();

  void init() {
    // Handle link when app is already running
    _appLinks.uriLinkStream.listen((Uri uri) {
      _handleDeepLink(uri);
    });

    // Handle link that launched the app
    _appLinks.getInitialLink().then((uri) {
      if (uri != null) _handleDeepLink(uri);
    });
  }

  void _handleDeepLink(Uri uri) {
    final path = uri.path.replaceFirst('/', ''); // e.g. "product/123"
    final params = uri.queryParameters;           // e.g. {"ref": "campaign1"}

    // Navigate to the appropriate screen
    navigateTo(path, params);
  }
}

Alternatively, if you use go_router, deep links are handled automatically via its route definitions.

How It Works

User clicks Journiq link (e.g. https://links.example.com/abc123)
    │
    ▼
Journiq redirect service detects platform
    │
    ├── iOS mobile ──► Redirects to myapp://product/123
    │                   (falls back to App Store if not installed)
    │
    ├── Android ────► Redirects via intent URL
    │                   intent:#Intent;scheme=myapp;package=com.example.myapp;
    │                   S.browser_fallback_url=<Play Store URL>;end
    │                   (falls back to Play Store if not installed)
    │
    └── Web/Desktop ► Redirects to webUrl

Every click goes through the redirect service, ensuring analytics are always recorded before the app opens.

License

MIT