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Quantum Trader

Custom Indicators

Indicator Architecture

Section titled “Indicator Architecture”

Indicators in Quantum Trader are implemented in the backend and exposed via API.

Backend Structure

Section titled “Backend Structure”
backend/app/services/
├── indicators/
│   ├── __init__.py
│   ├── base.py        # Base indicator class
│   ├── moving_avg.py  # SMA, EMA
│   ├── momentum.py    # RSI, MACD
│   └── volatility.py  # ATR, Bollinger

Creating a New Indicator

Section titled “Creating a New Indicator”

1. Implement the Calculation

Section titled “1. Implement the Calculation”
backend/app/services/indicators/custom.py
from .base import Indicator
import pandas as pd


class MyIndicator(Indicator):
    """Custom indicator implementation."""


    def __init__(self, period: int = 14):
        self.period = period


    def calculate(self, df: pd.DataFrame) -> pd.Series:
        """Calculate indicator values."""
        # Your calculation logic here
        return df['close'].rolling(self.period).mean()

2. Register the Indicator

Section titled “2. Register the Indicator”
backend/app/services/indicators/__init__.py
from .custom import MyIndicator


INDICATORS = {
    # ... existing indicators
    'MY_INDICATOR': MyIndicator,
}

3. Add API Endpoint (Optional)

Section titled “3. Add API Endpoint (Optional)”

If you want a dedicated endpoint:

backend/app/api/v1/indicators.py
@router.get("/my-indicator")
async def get_my_indicator(
    symbol: str,
    period: int = 14
):
    # Implementation

Frontend Integration

Section titled “Frontend Integration”

Add to Chart

Section titled “Add to Chart”
frontend/src/hooks/useIndicators.ts
export const AVAILABLE_INDICATORS = [
  // ... existing
  { id: 'MY_INDICATOR', name: 'My Indicator', params: ['period'] },
];

Render Indicator

Section titled “Render Indicator”
frontend/src/components/Chart/indicators.ts
export function renderMyIndicator(data: number[], options: IndicatorOptions) {
  // Rendering logic for Lightweight Charts
}

Next Steps

Section titled “Next Steps”