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feat: pure Dart SDK implementation#62

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nicklasl wants to merge 13 commits into
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session/bewildered-lark-h8of
Draft

feat: pure Dart SDK implementation#62
nicklasl wants to merge 13 commits into
mainfrom
session/bewildered-lark-h8of

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@nicklasl

@nicklasl nicklasl commented Jun 8, 2026

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Summary

  • Implements the Confidence SDK in pure Dart, replacing the native method channel bridge to Android/Swift SDKs
  • Flag resolution via REST POST to /v1/flags:resolve with dot-path evaluation, two-layer cache (disk + memory), and fetchAndActivate/activateAndFetchAsync strategies
  • Apply mechanism (exposure tracking) with dedup, persistence, and crash recovery via /v1/flags:apply
  • Best-effort event tracking via /v1/events:publish
  • Hierarchical context management with putContext/putContextLocal/removeContext/withContext
  • AsyncGate to serialize concurrent resolve requests + stale response discarding
  • Flutter integration: ConfidenceFlutter.create() factory wiring path_provider storage, device_info_plus enrichment, shared_preferences visitor ID
  • Legacy ConfidenceFlutterSdk class and getBool/getString/getInt/getDouble extension methods preserved for backward compat
  • Native bridge code (android/, ios/) kept alongside for parity validation — removal in follow-up PR

Test plan

  • 101 unit tests covering all components (value types, flag resolution, resolve client, apply manager, events client, storage, confidence integration)
  • flutter analyze passes with 0 errors
  • Integration test against real Confidence backend (example app dual-path)
  • Build and run on Android emulator
  • Build and run on iOS simulator

🤖 Generated with Claude Code

nicklasl and others added 10 commits June 22, 2026 14:30
Implements the foundation for a native Dart Confidence SDK:
- ConfidenceValue sealed type system with JSON serialization
- Flag resolution client (REST POST /v1/flags:resolve)
- Flag evaluation with dot-path traversal
- Apply client and manager with dedup
- Events client (best-effort)
- Storage interface with Memory and Disk implementations
- Confidence class with builder, context management
- 101 unit tests covering all components

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Auto-apply on getFlag()/getValue() when shouldApply is true
- AsyncGate serializes concurrent resolve requests
- Stale response discarding when context changes mid-fetch
- track() and flush() delegate to EventsClient
- Builder now creates ApplyManager and EventsClient

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- FlutterStorage: path_provider-based DiskStorage factory
- VisitorIdManager: UUID persistence via shared_preferences
- DeviceContextProvider: device/app/OS info via device_info_plus
- ConfidenceFlutter.create(): wires all Flutter deps automatically
- Legacy getBool/getString/getInt/getDouble extension methods
- Barrel export with all public types

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Keep the old ConfidenceFlutterSdk class and LoggingLevel enum in the
barrel export for native bridge and example app compatibility.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replaces the old ConfidenceFlutterSdk usage with
Confidence.builder() and the new typed API.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Drop the Android (Kotlin), iOS (Swift), platform interface,
method channel, and git submodule. The SDK is now pure Dart.

BREAKING CHANGE: ConfidenceFlutterSdk class and LoggingLevel
enum removed. Use Confidence.builder() or ConfidenceFlutter.create().

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Same structure as before but uses Confidence.builder() and
ConfidenceValue types instead of the native bridge.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Remove submodule fetch, iOS copy/delete dance, JDK setup,
and native APK/iOS builds from CI. The main CI now runs
flutter analyze + flutter test on ubuntu. Integration test
workflows kept for Android/iOS smoke tests via flutter drive.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@nicklasl nicklasl force-pushed the session/bewildered-lark-h8of branch from 4571d2d to 7d6ecdf Compare June 22, 2026 12:33
The integration test failed because getValue returned the empty-string
default when no segment matched. Use 'no value' as default and accept
any non-'Unknown' result as success.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@nicklasl nicklasl force-pushed the session/bewildered-lark-h8of branch from a9e73db to e8470a6 Compare June 22, 2026 14:18
nicklasl and others added 2 commits June 23, 2026 09:14
ConfidenceFlutterSdk now delegates to the pure Dart Confidence
class internally. Existing code using setup(), getBool(), getString(),
putAllContext(), etc. will continue to compile and work.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Auto-generate visitor_id in ConfidenceFlutterSdk (matches native SDK)
- Fix getObject to query the resolved flag structure
- Fix putContext/putAllContext to queue before init
- Fix activateAndFetchAsync to apply pending context
- Expose currentResolution and isStorageEmpty on Confidence
- Restore original example app from main using legacy API

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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