Remove duplicated breadcrumbs when syncing with iOS/macOS

CHANGELOG.md

@@ -12,6 +12,10 @@
   - [changelog](https://github.com/getsentry/sentry-java/blob/main/CHANGELOG.md#6131)
   - [diff](https://github.com/getsentry/sentry-java/compare/6.13.0...6.13.1)
 
+### Fixes
+
+- Remove duplicated breadcrumbs when syncing with iOS/macOS ([#1283](https://github.com/getsentry/sentry-dart/pull/1283))
+
 ## 6.20.1
 
 ### Fixes

flutter/ios/Classes/SentryFlutterPluginApple.swift

@@ -53,6 +53,28 @@ public class SentryFlutterPluginApple: NSObject, FlutterPlugin {
 
     }
 
+    private lazy var iso8601Formatter: DateFormatter = {
+        let formatter = DateFormatter()
+        formatter.locale = Locale(identifier: "en_US_POSIX")
+        formatter.timeZone = TimeZone(abbreviation: "UTC")
+        formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss'Z'"
+        return formatter
+    }()
+
+    private lazy var iso8601FormatterWithMillisecondPrecision: DateFormatter = {
+        let formatter = DateFormatter()
+        formatter.locale = Locale(identifier: "en_US_POSIX")
+        formatter.timeZone = TimeZone(abbreviation: "UTC")
+        formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'"
+        return formatter
+    }()
+
+    // Replace with `NSDate+SentryExtras` when available.
+    private func dateFrom(iso8601String: String) -> Date? {
+      return iso8601FormatterWithMillisecondPrecision.date(from: iso8601String)
+        ?? iso8601Formatter.date(from: iso8601String) // Parse date with low precision formatter for backward compatible
+    }
+
     // swiftlint:disable:next cyclomatic_complexity
     public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
         switch call.method as String {
@@ -581,6 +603,11 @@ public class SentryFlutterPluginApple: NSObject, FlutterPlugin {
         breadcrumbInstance.data = data
       }
 
+      if let timestampValue = breadcrumb["timestamp"] as? String,
+         let timestamp = dateFrom(iso8601String: timestampValue) {
+        breadcrumbInstance.timestamp = timestamp
+      }
+
       SentrySDK.addBreadcrumb(crumb: breadcrumbInstance)
 
       result("")

flutter/lib/src/integrations/load_contexts_integration.dart

@@ -137,21 +137,19 @@ class _LoadContextsIntegrationEventProcessor extends EventProcessor {
       }
 
       final breadcrumbsList = infos['breadcrumbs'] as List?;
-      if (breadcrumbsList != null && breadcrumbsList.isNotEmpty) {
-        final breadcrumbs = event.breadcrumbs ?? [];
-        final newBreadcrumbs =
+      if (breadcrumbsList != null &&
+          breadcrumbsList.isNotEmpty &&
+          _options.enableScopeSync) {
+        final breadcrumbsJson =
             List<Map<dynamic, dynamic>>.from(breadcrumbsList);
+        final breadcrumbs = <Breadcrumb>[];
 
-        for (final breadcrumb in newBreadcrumbs) {
-          final newBreadcrumb = Map<String, dynamic>.from(breadcrumb);
-          final crumb = Breadcrumb.fromJson(newBreadcrumb);
-          breadcrumbs.add(crumb);
+        for (final breadcrumbJson in breadcrumbsJson) {
+          final breadcrumb = Breadcrumb.fromJson(
+            Map<String, dynamic>.from(breadcrumbJson),
+          );
+          breadcrumbs.add(breadcrumb);
         }
-
-        breadcrumbs.sort((a, b) {
-          return a.timestamp.compareTo(b.timestamp);
-        });
-
         event = event.copyWith(breadcrumbs: breadcrumbs);
       }
 

flutter/test/integrations/load_contexts_integration_test.dart

@@ -2,6 +2,7 @@
 
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:mockito/mockito.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 import 'package:sentry_flutter/sentry_flutter.dart';
 import 'package:sentry_flutter/src/integrations/load_contexts_integration.dart';
@@ -36,12 +37,61 @@ void main() {
           fixture.options.sdk.integrations.contains('loadContextsIntegration'),
           true);
     });
+
+    test('take breadcrumbs from native if scope sync is enabled', () async {
+      fixture.options.enableScopeSync = true;
+
+      final eventBreadcrumb = Breadcrumb(message: 'event');
+      var event = SentryEvent(breadcrumbs: [eventBreadcrumb]);
+
+      final nativeBreadcrumb = Breadcrumb(message: 'native');
+      Map<String, dynamic> loadContexts = {
+        'breadcrumbs': [nativeBreadcrumb.toJson()]
+      };
+
+      final future = Future.value(loadContexts);
+      when(fixture.methodChannel.invokeMethod<dynamic>('loadContexts'))
+          .thenAnswer((_) => future);
+      _channel.setMockMethodCallHandler((MethodCall methodCall) async {});
+
+      final integration = LoadContextsIntegration(fixture.methodChannel);
+      integration.call(fixture.hub, fixture.options);
+      event = (await fixture.options.eventProcessors.first.apply(event))!;
+
+      expect(event.breadcrumbs!.length, 1);
+      expect(event.breadcrumbs!.first.message, 'native');
+    });
+
+    test('take breadcrumbs from event if scope sync is disabled', () async {
+      fixture.options.enableScopeSync = false;
+
+      final eventBreadcrumb = Breadcrumb(message: 'event');
+      var event = SentryEvent(breadcrumbs: [eventBreadcrumb]);
+
+      final nativeBreadcrumb = Breadcrumb(message: 'native');
+      Map<String, dynamic> loadContexts = {
+        'breadcrumbs': [nativeBreadcrumb.toJson()]
+      };
+
+      final future = Future.value(loadContexts);
+      when(fixture.methodChannel.invokeMethod<dynamic>('loadContexts'))
+          .thenAnswer((_) => future);
+      _channel.setMockMethodCallHandler((MethodCall methodCall) async {});
+
+      final integration = LoadContextsIntegration(fixture.methodChannel);
+      integration.call(fixture.hub, fixture.options);
+      event = (await fixture.options.eventProcessors.first.apply(event))!;
+
+      expect(event.breadcrumbs!.length, 1);
+      expect(event.breadcrumbs!.first.message, 'event');
+    });
   });
 }
 
 class Fixture {
   final hub = MockHub();
   final options = SentryFlutterOptions(dsn: fakeDsn);
+  final methodChannel = MockMethodChannel();
 
   LoadReleaseIntegration getIntegration({PackageLoader? loader}) {
     return LoadReleaseIntegration(loader ?? loadRelease);

flutter/test/integrations/load_contexts_integrations_test.dart

@@ -405,22 +405,6 @@ void main() {
 
     expect(event?.level, SentryLevel.fatal);
   });
-
-  test('should merge in breadcrumbs sorted by timestamp', () async {
-    final integration = fixture.getSut();
-    integration(fixture.hub, fixture.options);
-
-    final breadcrumb = Breadcrumb(
-      message: 'flutter-crumb',
-      timestamp: DateTime.fromMillisecondsSinceEpoch(1),
-    );
-    final e = getEvent(breadcrumbs: [breadcrumb]);
-    final event = await fixture.options.eventProcessors.first.apply(e);
-
-    expect(event?.breadcrumbs?.length, 2);
-    expect(event?.breadcrumbs?[0].message, 'native-crumb');
-    expect(event?.breadcrumbs?[1].message, 'flutter-crumb');
-  });
 }
 
 class Fixture {