# Progressive Delivery REST API

## Module
ReleaseOrchestrator

## Status
IMPLEMENTED

## Description
REST API endpoints for managing progressive delivery rollouts, canary deployments, feature flag operations, traffic splitting, and A/B experiments.

## Implementation Details
- **Modules**: `src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.ProgressiveDelivery/Api/`, `src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.Progressive/`
- **Key Classes**:
  - `ProgressiveDeliveryController` (`src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.ProgressiveDelivery/Api/ProgressiveDeliveryController.cs`) - REST API controller for progressive delivery operations
  - `CanaryController` (`src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.ProgressiveDelivery/CanaryController.cs`) - canary deployment management
  - `TrafficManager` (`src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.ProgressiveDelivery/TrafficManager.cs`) - traffic splitting and routing
  - `AbReleaseManager` (`src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.Progressive/AbRelease/AbReleaseManager.cs`) - A/B experiment management
  - `FeatureFlagBridge` (`src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.Progressive/FeatureFlags/FeatureFlagBridge.cs`) - feature flag operations
- **Interfaces**: `ICanaryController`, `ITrafficManager`, `IAbReleaseManager`
- **Source**: SPRINT_20260117_035

## E2E Test Plan
- [ ] Call the progressive delivery API to create a canary rollout and verify it starts successfully
- [ ] Call the API to set traffic split percentages and verify `TrafficManager` applies them
- [ ] Call the API to create an A/B experiment and verify `AbReleaseManager` tracks it
- [ ] Call the API to toggle a feature flag and verify `FeatureFlagBridge` propagates the change
- [ ] Verify API returns rollout status with metrics for an active canary deployment