# StellaRouter Performance Testing Pipeline (k6 + Prometheus + Correlation IDs)

## Module
Gateway

## Status
IMPLEMENTED

## Description
The StellaRouter gateway service exists but the advisory's proposed k6 performance testing scenarios (A-G), correlation ID instrumentation, and Prometheus metric dashboards for performance curve modeling are not present as source code artifacts. These may exist as devops artifacts outside src/.

## What's Implemented
- Gateway service with full middleware pipeline: `src/Gateway/StellaOps.Gateway.WebService/`
- Correlation ID middleware: `src/Gateway/StellaOps.Gateway.WebService/Middleware/CorrelationIdMiddleware.cs`
- Gateway metrics: `src/Gateway/StellaOps.Gateway.WebService/Services/GatewayMetrics.cs` -- Prometheus-compatible metrics
- Health monitoring: `src/Gateway/StellaOps.Gateway.WebService/Services/GatewayHealthMonitorService.cs`
- Source: Feature matrix scan

## What's Missing
- k6 performance testing scripts (scenarios A-G)
- Prometheus metric dashboards for performance curve modeling
- These may exist under `devops/` rather than `src/` -- check `devops/` directory

## Implementation Plan
- Create k6 test scripts for Gateway performance scenarios
- Add Grafana/Prometheus dashboards for Gateway metrics visualization
- These are DevOps artifacts and may belong under `devops/perf/` or similar

## Related Documentation
- Source: See feature catalog