Files
openbb-invest-api/technical_service.py
Yaojia Wang 87260f4b10 feat: add 67 new endpoints across 10 feature groups
Prerequisite refactor:
- Consolidate duplicate _to_dicts into shared obb_utils.to_list
- Add fetch_historical and first_or_empty helpers to obb_utils

Phase 1 - Local computation (no provider risk):
- Group I: 12 technical indicators (ATR, ADX, Stoch, OBV, Ichimoku,
  Donchian, Aroon, CCI, Keltner, Fibonacci, A/D, Volatility Cones)
- Group J: Sortino, Omega ratios + rolling stats (variance, stdev,
  mean, skew, kurtosis, quantile via generic endpoint)
- Group H: ECB currency reference rates

Phase 2 - FRED/Federal Reserve providers:
- Group C: 10 fixed income endpoints (treasury rates, yield curve,
  auctions, TIPS, EFFR, SOFR, HQM, commercial paper, spot rates,
  spreads)
- Group D: 11 economy endpoints (CPI, GDP, unemployment, PCE, money
  measures, CLI, HPI, FRED search, balance of payments, Fed holdings,
  FOMC documents)
- Group E: 5 survey endpoints (Michigan, SLOOS, NFP, Empire State,
  BLS search)

Phase 3 - SEC/stockgrid/FINRA providers:
- Group B: 4 equity fundamental endpoints (management, dividends,
  SEC filings, company search)
- Group A: 4 shorts/dark pool endpoints (short volume, FTD, short
  interest, OTC dark pool)
- Group F: 3 index/ETF enhanced (S&P 500 multiples, index
  constituents, ETF N-PORT)

Phase 4 - Regulators:
- Group G: 5 regulatory endpoints (COT report, COT search, SEC
  litigation, institution search, CIK mapping)

Security hardening:
- Service-layer allowlists for all getattr dynamic dispatch
- Regex validation on date, country, security_type, form_type params
- Exception handling in fetch_historical
- Callable guard on rolling stat dispatch

Total: 32 existing + 67 new = 99 endpoints, all free providers.
2026-03-19 17:28:31 +01:00

399 lines
14 KiB
Python

"""Technical analysis indicators via openbb-technical (local computation)."""
import asyncio
import logging
from typing import Any
from openbb import obb
from obb_utils import fetch_historical, to_list
logger = logging.getLogger(__name__)
async def get_technical_indicators(
symbol: str, days: int = 400
) -> dict[str, Any]:
"""Compute key technical indicators for a symbol."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data available"}
result: dict[str, Any] = {"symbol": symbol}
# RSI (14-period)
try:
rsi = await asyncio.to_thread(obb.technical.rsi, data=hist.results, length=14)
rsi_items = _extract_latest(rsi)
result["rsi_14"] = rsi_items.get("close_RSI_14")
except Exception:
logger.warning("RSI calculation failed for %s", symbol, exc_info=True)
result["rsi_14"] = None
# MACD (12, 26, 9)
try:
macd = await asyncio.to_thread(
obb.technical.macd, data=hist.results, fast=12, slow=26, signal=9
)
macd_items = _extract_latest(macd)
result["macd"] = {
"macd": macd_items.get("close_MACD_12_26_9"),
"signal": macd_items.get("close_MACDs_12_26_9"),
"histogram": macd_items.get("close_MACDh_12_26_9"),
}
except Exception:
logger.warning("MACD calculation failed for %s", symbol, exc_info=True)
result["macd"] = None
# SMA (20, 50, 200)
for period in [20, 50, 200]:
try:
sma = await asyncio.to_thread(
obb.technical.sma, data=hist.results, length=period
)
sma_items = _extract_latest(sma)
result[f"sma_{period}"] = sma_items.get(f"close_SMA_{period}")
except Exception:
logger.warning("SMA_%d failed for %s", period, symbol, exc_info=True)
result[f"sma_{period}"] = None
# EMA (12, 26)
for period in [12, 26]:
try:
ema = await asyncio.to_thread(
obb.technical.ema, data=hist.results, length=period
)
ema_items = _extract_latest(ema)
result[f"ema_{period}"] = ema_items.get(f"close_EMA_{period}")
except Exception:
logger.warning("EMA_%d failed for %s", period, symbol, exc_info=True)
result[f"ema_{period}"] = None
# Bollinger Bands (20, 2)
try:
bbands = await asyncio.to_thread(
obb.technical.bbands, data=hist.results, length=20, std=2
)
bb_items = _extract_latest(bbands)
result["bollinger_bands"] = {
"upper": bb_items.get("close_BBU_20_2.0"),
"middle": bb_items.get("close_BBM_20_2.0"),
"lower": bb_items.get("close_BBL_20_2.0"),
}
except Exception:
logger.warning("Bollinger Bands failed for %s", symbol, exc_info=True)
result["bollinger_bands"] = None
# Add interpretation
result["signals"] = _interpret_signals(result)
return result
def _extract_latest(result: Any) -> dict[str, Any]:
"""Get the last row from a technical indicator result as a dict."""
if result is None or result.results is None:
return {}
items = result.results
if isinstance(items, list) and items:
last = items[-1]
if hasattr(last, "model_dump"):
return last.model_dump()
return vars(last) if vars(last) else {}
return {}
def _interpret_signals(data: dict[str, Any]) -> list[str]:
"""Generate simple text signals from technical indicators."""
signals: list[str] = []
rsi = data.get("rsi_14")
if rsi is not None:
if rsi > 70:
signals.append(f"RSI {rsi:.1f}: Overbought (bearish signal)")
elif rsi < 30:
signals.append(f"RSI {rsi:.1f}: Oversold (bullish signal)")
else:
signals.append(f"RSI {rsi:.1f}: Neutral")
macd = data.get("macd")
if macd and macd.get("histogram") is not None:
hist = macd["histogram"]
if hist > 0:
signals.append("MACD histogram positive (bullish momentum)")
else:
signals.append("MACD histogram negative (bearish momentum)")
sma_50 = data.get("sma_50")
sma_200 = data.get("sma_200")
if sma_50 is not None and sma_200 is not None:
if sma_50 > sma_200:
signals.append("Golden cross: SMA50 above SMA200 (bullish trend)")
else:
signals.append("Death cross: SMA50 below SMA200 (bearish trend)")
return signals
# --- Individual Indicator Functions (Phase 1, Group I) ---
async def get_atr(symbol: str, length: int = 14, days: int = 400) -> dict[str, Any]:
"""Average True Range -- volatility measurement for position sizing."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data"}
try:
result = await asyncio.to_thread(
obb.technical.atr, data=hist.results, length=length
)
latest = _extract_latest(result)
return {
"symbol": symbol,
"length": length,
"atr": latest.get(f"ATRr_{length}"),
}
except Exception:
logger.warning("ATR failed for %s", symbol, exc_info=True)
return {"symbol": symbol, "error": "Failed to compute ATR"}
async def get_adx(symbol: str, length: int = 14, days: int = 400) -> dict[str, Any]:
"""Average Directional Index -- trend strength (>25 strong, <20 range-bound)."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data"}
try:
result = await asyncio.to_thread(
obb.technical.adx, data=hist.results, length=length
)
latest = _extract_latest(result)
adx_val = latest.get(f"ADX_{length}")
signal = "strong trend" if adx_val and adx_val > 25 else "range-bound"
return {
"symbol": symbol,
"length": length,
"adx": adx_val,
"dmp": latest.get(f"DMP_{length}"),
"dmn": latest.get(f"DMN_{length}"),
"signal": signal,
}
except Exception:
logger.warning("ADX failed for %s", symbol, exc_info=True)
return {"symbol": symbol, "error": "Failed to compute ADX"}
async def get_stoch(
symbol: str, fast_k: int = 14, slow_d: int = 3, slow_k: int = 3, days: int = 400,
) -> dict[str, Any]:
"""Stochastic Oscillator -- overbought/oversold momentum signal."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data"}
try:
result = await asyncio.to_thread(
obb.technical.stoch, data=hist.results,
fast_k=fast_k, slow_d=slow_d, slow_k=slow_k,
)
latest = _extract_latest(result)
k_val = latest.get(f"STOCHk_{fast_k}_{slow_d}_{slow_k}")
d_val = latest.get(f"STOCHd_{fast_k}_{slow_d}_{slow_k}")
signal = "neutral"
if k_val is not None:
if k_val > 80:
signal = "overbought"
elif k_val < 20:
signal = "oversold"
return {
"symbol": symbol,
"stoch_k": k_val,
"stoch_d": d_val,
"signal": signal,
}
except Exception:
logger.warning("Stochastic failed for %s", symbol, exc_info=True)
return {"symbol": symbol, "error": "Failed to compute Stochastic"}
async def get_obv(symbol: str, days: int = 400) -> dict[str, Any]:
"""On-Balance Volume -- cumulative volume indicator for divergence detection."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data"}
try:
result = await asyncio.to_thread(obb.technical.obv, data=hist.results)
latest = _extract_latest(result)
return {
"symbol": symbol,
"obv": latest.get("OBV"),
}
except Exception:
logger.warning("OBV failed for %s", symbol, exc_info=True)
return {"symbol": symbol, "error": "Failed to compute OBV"}
async def get_ichimoku(symbol: str, days: int = 400) -> dict[str, Any]:
"""Ichimoku Cloud -- comprehensive trend system."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data"}
try:
result = await asyncio.to_thread(obb.technical.ichimoku, data=hist.results)
latest = _extract_latest(result)
return {
"symbol": symbol,
"tenkan_sen": latest.get("ITS_9"),
"kijun_sen": latest.get("IKS_26"),
"senkou_span_a": latest.get("ISA_9"),
"senkou_span_b": latest.get("ISB_26"),
"chikou_span": latest.get("ICS_26"),
}
except Exception:
logger.warning("Ichimoku failed for %s", symbol, exc_info=True)
return {"symbol": symbol, "error": "Failed to compute Ichimoku"}
async def get_donchian(symbol: str, length: int = 20, days: int = 400) -> dict[str, Any]:
"""Donchian Channels -- breakout detection system."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data"}
try:
result = await asyncio.to_thread(
obb.technical.donchian, data=hist.results, lower_length=length, upper_length=length,
)
latest = _extract_latest(result)
return {
"symbol": symbol,
"length": length,
"upper": latest.get(f"DCU_{length}_{length}"),
"middle": latest.get(f"DCM_{length}_{length}"),
"lower": latest.get(f"DCL_{length}_{length}"),
}
except Exception:
logger.warning("Donchian failed for %s", symbol, exc_info=True)
return {"symbol": symbol, "error": "Failed to compute Donchian"}
async def get_aroon(symbol: str, length: int = 25, days: int = 400) -> dict[str, Any]:
"""Aroon Indicator -- trend direction and strength."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data"}
try:
result = await asyncio.to_thread(
obb.technical.aroon, data=hist.results, length=length,
)
latest = _extract_latest(result)
up = latest.get(f"AROONU_{length}")
down = latest.get(f"AROOND_{length}")
osc = latest.get(f"AROONOSC_{length}")
return {
"symbol": symbol,
"length": length,
"aroon_up": up,
"aroon_down": down,
"aroon_oscillator": osc,
}
except Exception:
logger.warning("Aroon failed for %s", symbol, exc_info=True)
return {"symbol": symbol, "error": "Failed to compute Aroon"}
async def get_cci(symbol: str, length: int = 14, days: int = 400) -> dict[str, Any]:
"""Commodity Channel Index -- cyclical trend identification."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data"}
try:
result = await asyncio.to_thread(
obb.technical.cci, data=hist.results, length=length,
)
latest = _extract_latest(result)
cci_val = latest.get(f"CCI_{length}_{0.015}")
signal = "neutral"
if cci_val is not None:
if cci_val > 100:
signal = "overbought"
elif cci_val < -100:
signal = "oversold"
return {
"symbol": symbol,
"length": length,
"cci": cci_val,
"signal": signal,
}
except Exception:
logger.warning("CCI failed for %s", symbol, exc_info=True)
return {"symbol": symbol, "error": "Failed to compute CCI"}
async def get_kc(symbol: str, length: int = 20, days: int = 400) -> dict[str, Any]:
"""Keltner Channels -- ATR-based volatility bands."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data"}
try:
result = await asyncio.to_thread(
obb.technical.kc, data=hist.results, length=length,
)
latest = _extract_latest(result)
return {
"symbol": symbol,
"length": length,
"upper": latest.get(f"KCUe_{length}_2"),
"middle": latest.get(f"KCBe_{length}_2"),
"lower": latest.get(f"KCLe_{length}_2"),
}
except Exception:
logger.warning("Keltner failed for %s", symbol, exc_info=True)
return {"symbol": symbol, "error": "Failed to compute Keltner Channels"}
async def get_fib(symbol: str, days: int = 120) -> dict[str, Any]:
"""Fibonacci Retracement levels from recent price range."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data"}
try:
result = await asyncio.to_thread(obb.technical.fib, data=hist.results)
latest = _extract_latest(result)
return {"symbol": symbol, **latest}
except Exception:
logger.warning("Fibonacci failed for %s", symbol, exc_info=True)
return {"symbol": symbol, "error": "Failed to compute Fibonacci"}
async def get_ad(symbol: str, days: int = 400) -> dict[str, Any]:
"""Accumulation/Distribution Line -- volume-based trend indicator."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data"}
try:
result = await asyncio.to_thread(obb.technical.ad, data=hist.results)
latest = _extract_latest(result)
return {
"symbol": symbol,
"ad": latest.get("AD"),
"ad_obv": latest.get("AD_OBV"),
}
except Exception:
logger.warning("A/D failed for %s", symbol, exc_info=True)
return {"symbol": symbol, "error": "Failed to compute A/D Line"}
async def get_cones(symbol: str, days: int = 365) -> dict[str, Any]:
"""Volatility Cones -- realized volatility quantiles for options analysis."""
hist = await fetch_historical(symbol, days)
if hist is None:
return {"symbol": symbol, "error": "No historical data"}
try:
result = await asyncio.to_thread(
obb.technical.cones, data=hist.results,
)
items = to_list(result)
return {"symbol": symbol, "cones": items}
except Exception:
logger.warning("Volatility cones failed for %s", symbol, exc_info=True)
return {"symbol": symbol, "error": "Failed to compute volatility cones"}