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@barfinex/indicators

v1.0.0

Published

Technical analysis indicators for the Barfinex ecosystem. Candle-driven API for use in Detector strategies, standalone backtesting, or any Node/NestJS app.

Downloads

72

Readme

@barfinex/indicators

NestJS-библиотека технических индикаторов для экосистемы Barfinex. Candle-driven API для стратегий Detector и приложений на NestJS.

Подробная документация: docs/INDICATORS.md — обзор API, жизненный цикл свечи, справочник индикаторов, интеграция с Detector.


Features

  • NestJSIndicatorsModule и IndicatorsService: создание индикаторов по конфигу детектора, стабильные ключи (sma7, ema21).
  • Candle lifecycle APIonCandleOpen, onCandleClose, onCandleUpdate(candle, side?) для real-time и истории.
  • Интеграция с Detector — при использовании DetectorModule сервис стратегии получает IndicatorsService и вызывает createIndicator(config).
  • Классы индикаторов — экспортируются SMA, RSI, EMA, MACD и др. для прямого использования или кастомных адаптеров.

Installation

npm install @barfinex/indicators @barfinex/types

Quick start (NestJS)

Подключите модуль и используйте сервис в стратегиях детектора:

// app.module.ts
import { IndicatorsModule } from '@barfinex/indicators';

@Module({
  imports: [IndicatorsModule],
  // ...
})
export class AppModule {}

В стратегии детектора (например FollowTrendService) IndicatorsService передаётся конструктором при переключении детектора; в onInit() создавайте индикаторы через сервис:

import { IndicatorsService } from '@barfinex/indicators';

// В конструкторе: protected readonly indicatorsService: IndicatorsService

// В onInit():
for (const indConfig of this.options.indicators ?? []) {
  const { key, instance } = this.indicatorsService.createIndicator(indConfig);
  this.indicators[symbolName][interval][key] = instance;
}

Использование классов индикаторов

import { SMA, RSI } from '@barfinex/indicators';

const sma = new SMA({ period: 14, valueType: 'close' });
sma.onCandleClose(candle); // result[0] = current SMA

const rsi = new RSI(14);
const value = rsi.nextValue(candle.c);

Supported indicators

| Name | Candle API | Detector key example | |------|------------|----------------------| | SMA, EMA, WEMA, WMA, LWMA | ✓ | sma14, ema21 | | RSI, cRSI, CCI, ROC | via adapter | rsi14, crsi3 | | ATR, DC, BollingerBands, MACD | via adapter | atr14, dc20 | | ADX, SuperTrend, PSAR, Stochastic | via adapter | adx14, psar | | AO, AC, HeikenAshi, Pivot | via adapter | ao, pivot | | Extremums | ✓ | extremums | | TrendLines, VolumeProfile, etc. | see exports | — |


API

  • IndicatorsModule — глобальный NestJS-модуль.
  • IndicatorsServicecreateIndicator(config), indicatorKey(config), getSupportedNames().
  • BfxCandleIndicator — интерфейс: type, options, result, lastValue, onCandleOpen, onCandleClose, onCandleUpdate?.
  • getBfxIndicatorNumber(value, preferredKey?) — helper для стратегий, которым нужен scalar из object-result.

Barfinex

Part of the Barfinex ecosystem. Docs: First Steps, Architecture, Detector.


License

MIT. See LICENSE. Attribution to Barfinex appreciated.