Files
foxhunt/services/backtesting_service
jgrusewski 86f7f1fa76 fix: comprehensive audit — real brokers, deployment fixes, production safety
Codebase audit identified 23 findings across 4 dimensions (production safety,
code health, deployment readiness, test quality). This commit fixes all of them.

Broker execution layer (was entirely stubbed):
- Real IBKR TWS client via ibapi crate (950+ lines, feature-gated)
- ICMarkets ctrader-openapi now always-on (removed feature flag)
- Real broker routing with health monitoring and exponential backoff reconnect
- Validated against live IB Gateway Docker (6/6 connectivity tests pass)

Deployment blockers:
- Fixed 6 broken Dockerfiles (removed COPY foxhunt-deploy)
- Created foxhunt K8s namespace, secret templates, migration job
- Added liveness probes to all 7 K8s services
- IB Gateway manifest (ghcr.io/gnzsnz/ib-gateway:stable)
- IBKR credentials in Scaleway Secret Manager via Terragrunt
- Fixed port collisions and mismatches across services

Production safety (9 critical + 6 high/medium fixes):
- Asset-class-specific VaR volatility (not flat 2%)
- Real parametric VaR with z-score 95th percentile
- Kyle's lambda regression (100-bar rolling window)
- Per-feature running statistics from historical data
- VWAP-based slippage reference, regime duration tracking
- Real Databento JSON parsing for OHLCV/Trade/Quote

Code health:
- Removed #![allow(dead_code)] from ml, data, config
- Fixed log:: → tracing:: in 4 production files
- Removed dead workspace deps (ratatui, crossterm)

Verified: cargo check --workspace (0 errors), trading_engine 330 tests pass.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-25 00:32:10 +01:00
..

Backtesting Service

Overview

The backtesting_service offers an independent and isolated environment for rigorously testing and validating trading strategies against historical market data. It provides a robust platform for simulating trading performance, analyzing strategy efficacy, and generating comprehensive performance reports before live deployment.

Features

  • Independent Backtesting Service: Operates autonomously, allowing for parallel and isolated strategy evaluations.
  • gRPC API for Backtest Execution: Exposes a clear API for submitting and managing backtesting jobs.
  • Strategy Testing and Validation: Enables comprehensive testing of various trading strategies under different market conditions.
  • Performance Reporting: Generates detailed reports including metrics like P&L, Sharpe ratio, drawdown, and win rate.
  • Data Replay Engine: Accurately replays historical market data, simulating real-world order book dynamics and trade execution.
  • Results Persistence: Stores backtesting results and reports for historical analysis and comparison.

gRPC API

The backtesting_service exposes a gRPC API for initiating and retrieving backtest results. Key endpoints include:

  • RunBacktest - Submit backtest configuration and strategy
  • GetBacktestResults - Retrieve results for completed backtests
  • ListAvailableStrategies - List registered strategies
  • GetBacktestReport - Get detailed performance report

Running the service

To run the backtesting_service binary:

cargo run --bin backtesting_service

Data Requirements

The service requires historical market data in Parquet format:

  • Data should be stored in the configured data directory
  • Supports tick data, order book snapshots, and OHLCV candles
  • Data must include instrument, timestamp, and price/quantity fields

Testing

To run the tests for the backtesting_service crate:

cargo test --package backtesting_service

Documentation

Comprehensive API documentation is available at docs.rs/backtesting_service.