Files
foxhunt/services/backtesting_service
jgrusewski 845e77a8b0 fix(ci): Fix GitLab CI YAML syntax and PPOConfig compilation errors
Two critical fixes for successful pipeline execution:

1. GitLab CI YAML Syntax Fix (.gitlab-ci.yml:84-86)
   - Wrapped echo commands containing colons in single quotes
   - Root cause: YAML parser interprets `"text: value"` as key-value pairs
   - Solution: Single quotes force literal string interpretation
   - Impact: Enables Docker build pipeline execution

2. Trading Service Compilation Fix (trading_service/src/services/enhanced_ml.rs:1328-1348)
   - Added missing early stopping fields to PPOConfig initialization
   - Fields: early_stopping_enabled, early_stopping_patience, early_stopping_min_delta, early_stopping_min_epochs
   - Values: Disabled by default for paper trading (early_stopping_enabled: false)
   - Impact: Resolves pre-push hook compilation error

Technical Details:
- YAML Issue: Colons followed by spaces trigger mapping syntax parsing
- Single quotes preserve shell variable expansion while forcing literal YAML strings
- Early stopping config matches PPOConfig struct updates from Wave D
- Default values: patience=5, min_delta=0.001, min_epochs=10

Validated:
-  YAML syntax validated with PyYAML
-  trading_service compilation successful (cargo check)
-  Ready for GitLab CI/CD pipeline execution

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-10-31 00:20:00 +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.