Giorgio Gilestro
4e7e4981e3
ECB Statistical Data Warehouse joins as a 5th data source — open API, no key, daily euro-area yield curve data. Symbol format 'ECB:dataset/series_key', e.g. 'ECB:YC/B.U2.EUR.4F.G_N_A.SV_C_YM.SR_10Y' for daily 10y AAA spot rate. Bonds tab adds ECB EZ 10y AAA + 2y AAA so there's at least some currently-fresh European sovereign data alongside the US Treasuries. Country-specific yields (Bund/OAT/BTP/Gilt/JGB) remain on Eurostat/FRED monthly mirrors — no free daily source exists for those. Stale threshold is now per-group instead of a flat 90 days. Daily-tape groups (bonds, rates, equity, etc.) flag stale after a week or three; monthly groups (economy, macro, valuation) stay at 60-90 days. The bonds tab will now correctly show 30-60 day-old country yields as stale next to the daily US/ECB ones. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
591 lines
20 KiB
Python
591 lines
20 KiB
Python
"""Market data fetchers — Yahoo Finance (no auth) and FRED (key required).
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Ported from /home/gg/ownCloud/Family/Finances/Wealth/market_pulse.py.
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Logic preserved verbatim where possible; HTTP switched to httpx.AsyncClient.
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"""
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from __future__ import annotations
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from dataclasses import dataclass, field
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from datetime import datetime, timezone
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from typing import Callable
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import httpx
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from app.config import get_settings
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YAHOO_CHART = "https://query1.finance.yahoo.com/v8/finance/chart/{symbol}"
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FRED_API = "https://api.stlouisfed.org/fred/series/observations"
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EUROSTAT_API = "https://ec.europa.eu/eurostat/api/dissemination/statistics/1.0/data/{dataset}"
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ONS_API = "https://www.ons.gov.uk/{topic}/timeseries/{cdid}/{dataset}/data"
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ECB_API = "https://data-api.ecb.europa.eu/service/data/{dataset}/{series_key}"
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UA = {"User-Agent": "Mozilla/5.0 (cassandra) Python/httpx"}
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# --- In-flight data shape (services return these; jobs persist to DB) --------
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@dataclass
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class Quote:
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symbol: str
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source: str
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label: str
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note: str
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price: float | None
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currency: str | None
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as_of: str | None
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changes: dict[str, float | None] = field(default_factory=dict)
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price_base: float | None = None
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currency_base: str | None = None
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anchor_date: str | None = None
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error: str | None = None
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def _pct(old: float | None, new: float | None) -> float | None:
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if old is None or new is None or old == 0:
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return None
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return (new - old) / old * 100.0
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def _parse_date(s: str) -> datetime:
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return datetime.strptime(s, "%Y-%m-%d")
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def _yahoo_range_covering(anchor: str | None) -> str:
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if not anchor:
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return "1y"
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days = (datetime.now(timezone.utc).date() - _parse_date(anchor).date()).days
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if days <= 360:
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return "1y"
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if days <= 1800:
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return "5y"
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if days <= 3600:
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return "10y"
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return "max"
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# --- Fetchers -----------------------------------------------------------------
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async def fetch_yahoo(
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client: httpx.AsyncClient,
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symbol: str,
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label: str,
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note: str,
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anchor: str | None = None,
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) -> Quote:
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"""Latest close + %1d / %1m / %1y / (optional) %anchor from Yahoo's chart endpoint."""
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try:
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r = await client.get(
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YAHOO_CHART.format(symbol=symbol),
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params={"interval": "1d", "range": _yahoo_range_covering(anchor),
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"includePrePost": "false"},
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headers=UA,
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timeout=15,
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)
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r.raise_for_status()
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result = r.json()["chart"]["result"]
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if not result:
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raise ValueError("empty result")
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res = result[0]
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meta = res["meta"]
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price = meta.get("regularMarketPrice")
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prev_session = meta.get("previousClose")
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timestamps = res.get("timestamp") or []
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closes = (res.get("indicators", {}).get("quote") or [{}])[0].get("close") or []
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series = [(t, c) for t, c in zip(timestamps, closes) if c is not None]
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if not series:
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raise ValueError("no closes in series")
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last_ts = series[-1][0]
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if prev_session is None and len(series) >= 2:
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prev_session = series[-2][1]
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chg_1m = _pct(series[-22][1], price) if len(series) >= 22 else None
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chg_1y = _pct(series[0][1], price) if len(series) >= 2 else None
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changes: dict[str, float | None] = {
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"1d": _pct(prev_session, price),
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"1m": chg_1m,
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"1y": chg_1y,
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}
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anchor_used: str | None = None
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if anchor:
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anchor_ts = int(_parse_date(anchor).replace(tzinfo=timezone.utc).timestamp())
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anchor_close = next((c for t, c in series if t >= anchor_ts), None)
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anchor_actual_ts = next((t for t, c in series if t >= anchor_ts), None)
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changes["anchor"] = _pct(anchor_close, price)
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if anchor_actual_ts:
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anchor_used = datetime.fromtimestamp(
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anchor_actual_ts, timezone.utc
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).strftime("%Y-%m-%d")
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return Quote(
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symbol=symbol,
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source="yahoo",
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label=label,
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note=note,
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price=price,
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currency=meta.get("currency"),
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as_of=datetime.fromtimestamp(last_ts, timezone.utc).strftime("%Y-%m-%d"),
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changes=changes,
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anchor_date=anchor_used,
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)
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except Exception as e:
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return Quote(symbol, "yahoo", label, note, None, None, None, error=str(e))
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async def fetch_fred(
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client: httpx.AsyncClient,
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symbol: str,
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label: str,
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note: str,
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anchor: str | None = None,
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) -> Quote:
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"""Latest value + 1d/1m/1y deltas from a FRED series. Requires FRED_API_KEY."""
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api_key = get_settings().FRED_API_KEY
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if not api_key:
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return Quote(symbol, "fred", label, note, None, None, None,
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error="FRED_API_KEY not set")
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try:
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r = await client.get(
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FRED_API,
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params={
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"series_id": symbol,
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"api_key": api_key,
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"file_type": "json",
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"sort_order": "desc",
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"limit": 5000 if anchor else 800,
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},
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headers=UA,
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timeout=20,
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)
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r.raise_for_status()
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obs = r.json().get("observations", [])
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data = [
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(o["date"], float(o["value"]))
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for o in obs if o.get("value") not in (".", "", None)
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]
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if not data:
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raise ValueError("no observations")
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last_date, last_val = data[0]
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# CPI levels reported as YoY%.
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if symbol in ("CPIAUCSL", "CPILFESL") and len(data) >= 13:
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yoy = _pct(data[12][1], last_val)
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changes: dict[str, float | None] = {"1d": None, "1m": None, "1y": None}
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anchor_used: str | None = None
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if anchor:
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anchor_dt = _parse_date(anchor)
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anchor_idx = next(
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(i for i, (d, _) in enumerate(data) if _parse_date(d) <= anchor_dt),
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None,
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)
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if anchor_idx is not None and anchor_idx + 12 < len(data):
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yoy_then = _pct(data[anchor_idx + 12][1], data[anchor_idx][1])
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changes["anchor"] = (yoy or 0) - (yoy_then or 0)
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anchor_used = anchor
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return Quote(symbol, "fred", label, note, yoy, "%", last_date,
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changes=changes, anchor_date=anchor_used)
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last_dt = _parse_date(last_date)
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def find_back(min_days: int) -> float | None:
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for d, v in data[1:]:
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if (last_dt - _parse_date(d)).days >= min_days:
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return v
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return None
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prev_val = data[1][1] if len(data) >= 2 else None
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changes = {
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"1d": _pct(prev_val, last_val),
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"1m": _pct(find_back(28), last_val),
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"1y": _pct(find_back(360), last_val),
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}
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anchor_used = None
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if anchor:
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anchor_dt = _parse_date(anchor)
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anchor_obs = next(
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((d, v) for d, v in data if _parse_date(d) <= anchor_dt), None
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)
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if anchor_obs:
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changes["anchor"] = _pct(anchor_obs[1], last_val)
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anchor_used = anchor_obs[0]
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return Quote(
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symbol=symbol, source="fred", label=label, note=note,
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price=last_val, currency=None, as_of=last_date,
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changes=changes, anchor_date=anchor_used,
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)
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except Exception as e:
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return Quote(symbol, "fred", label, note, None, None, None, error=str(e))
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# --- Eurostat (no API key needed) -------------------------------------------
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def _eurostat_time_to_iso(t: str) -> str:
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"""Convert Eurostat time codes into ISO-style dates so they sort and
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compare correctly. Accepts YYYY-MM, YYYY-Qn, YYYY, and YYYY-MM-DD."""
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t = t.strip()
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if len(t) == 4 and t.isdigit(): # annual: "2026"
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return f"{t}-01-01"
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if len(t) == 6 and t[4] == "Q": # quarterly: "2026Q1"
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q = int(t[5])
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return f"{t[:4]}-{(q - 1) * 3 + 1:02d}-01"
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if len(t) == 7 and t[4] == "-": # monthly: "2026-03"
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return f"{t}-01"
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if len(t) == 10: # daily: "2026-03-15"
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return t
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return t # fall through; caller may flag
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async def fetch_eurostat(
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client: httpx.AsyncClient,
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symbol: str,
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label: str,
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note: str,
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anchor: str | None = None,
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) -> Quote:
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"""Fetch a Eurostat time series. `symbol` format:
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DATASET?dim1=val1&dim2=val2
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e.g. 'irt_lt_mcby_m?geo=DE&int_rt=MCBY' for German 10y bond yield.
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Eurostat's API is open (no key), uses JSON-stat 2.0."""
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import urllib.parse
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try:
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if "?" in symbol:
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dataset, query = symbol.split("?", 1)
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params = dict(urllib.parse.parse_qsl(query))
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else:
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dataset, params = symbol, {}
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params.setdefault("format", "JSON")
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params.setdefault("lang", "EN")
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r = await client.get(
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EUROSTAT_API.format(dataset=dataset),
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params=params, headers=UA, timeout=20,
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)
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r.raise_for_status()
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data = r.json()
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time_cat = data["dimension"]["time"]["category"]
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# JSON-stat 2.0: {"index": {timecode: pos}, "label": {timecode: human}}
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time_index = time_cat["index"]
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values = data.get("value") or {}
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# Build (iso_date, value) pairs, sorted ascending in time.
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rows: list[tuple[str, float]] = []
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for tcode, pos in sorted(time_index.items(), key=lambda kv: kv[1]):
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raw = values.get(str(pos))
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if raw is None:
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continue
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try:
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rows.append((_eurostat_time_to_iso(tcode), float(raw)))
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except (TypeError, ValueError):
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continue
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if not rows:
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raise ValueError("no observations")
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last_date, last_val = rows[-1]
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def _find_back(min_days: int) -> float | None:
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ref = datetime.strptime(last_date, "%Y-%m-%d").date()
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for d, v in reversed(rows[:-1]):
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if (ref - datetime.strptime(d, "%Y-%m-%d").date()).days >= min_days:
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return v
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return None
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prev_val = rows[-2][1] if len(rows) >= 2 else None
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changes = {
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"1d": _pct(prev_val, last_val),
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"1m": _pct(_find_back(28), last_val),
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"1y": _pct(_find_back(360), last_val),
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}
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anchor_used: str | None = None
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if anchor:
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anchor_d = _parse_date(anchor).date()
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for d, v in reversed(rows):
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if datetime.strptime(d, "%Y-%m-%d").date() <= anchor_d:
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changes["anchor"] = _pct(v, last_val)
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anchor_used = d
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break
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return Quote(
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symbol=symbol, source="eurostat", label=label, note=note,
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price=last_val, currency=None, as_of=last_date,
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changes=changes, anchor_date=anchor_used,
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)
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except Exception as e:
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return Quote(symbol, "eurostat", label, note, None, None, None, error=str(e))
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# --- UK ONS (Office for National Statistics, no API key needed) -------------
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_ONS_MONTH = {
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"JAN": 1, "FEB": 2, "MAR": 3, "APR": 4, "MAY": 5, "JUN": 6,
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"JUL": 7, "AUG": 8, "SEP": 9, "OCT": 10, "NOV": 11, "DEC": 12,
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}
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def _ons_date_to_iso(s: str) -> str | None:
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"""ONS date formats: monthly '2026 MAR', quarterly '2026 Q1', annual '2025'."""
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s = s.strip().upper()
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parts = s.split()
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try:
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if len(parts) == 1 and parts[0].isdigit():
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return f"{parts[0]}-01-01"
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if len(parts) == 2:
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year = int(parts[0])
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tag = parts[1]
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if tag in _ONS_MONTH:
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return f"{year:04d}-{_ONS_MONTH[tag]:02d}-01"
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if tag.startswith("Q") and tag[1:].isdigit():
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q = int(tag[1:])
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return f"{year:04d}-{(q - 1) * 3 + 1:02d}-01"
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except (ValueError, IndexError):
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pass
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return None
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async def fetch_ons(
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client: httpx.AsyncClient,
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symbol: str,
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label: str,
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note: str,
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anchor: str | None = None,
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) -> Quote:
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"""Fetch a UK ONS time series. `symbol` format:
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<topic_path>/<cdid>/<dataset>
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e.g. 'economy/inflationandpriceindices/d7g7/mm23' for UK CPI YoY.
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ONS publishes via www.ons.gov.uk; no auth, JSON when Accept header set."""
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try:
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parts = symbol.split("/")
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if len(parts) < 3:
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raise ValueError("ONS symbol must be topic/cdid/dataset")
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dataset = parts[-1]
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cdid = parts[-2]
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topic = "/".join(parts[:-2])
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r = await client.get(
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ONS_API.format(topic=topic, cdid=cdid, dataset=dataset),
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headers={**UA, "Accept": "application/json"},
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timeout=20,
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)
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r.raise_for_status()
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data = r.json()
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# Use the most granular series available: months > quarters > years.
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for key in ("months", "quarters", "years"):
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raw_seq = data.get(key) or []
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if raw_seq:
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break
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if not raw_seq:
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raise ValueError("no observations")
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rows: list[tuple[str, float]] = []
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for entry in raw_seq:
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iso = _ons_date_to_iso(entry.get("date", ""))
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v = entry.get("value")
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if iso is None or v in (None, "", "."):
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continue
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try:
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rows.append((iso, float(v)))
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except (TypeError, ValueError):
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continue
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if not rows:
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raise ValueError("no parseable observations")
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last_date, last_val = rows[-1]
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def _find_back(min_days: int) -> float | None:
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ref = datetime.strptime(last_date, "%Y-%m-%d").date()
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for d, v in reversed(rows[:-1]):
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if (ref - datetime.strptime(d, "%Y-%m-%d").date()).days >= min_days:
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return v
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return None
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prev_val = rows[-2][1] if len(rows) >= 2 else None
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changes = {
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"1d": _pct(prev_val, last_val),
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"1m": _pct(_find_back(28), last_val),
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"1y": _pct(_find_back(360), last_val),
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}
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anchor_used: str | None = None
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if anchor:
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anchor_d = _parse_date(anchor).date()
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for d, v in reversed(rows):
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if datetime.strptime(d, "%Y-%m-%d").date() <= anchor_d:
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changes["anchor"] = _pct(v, last_val)
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anchor_used = d
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break
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return Quote(
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symbol=symbol, source="ons", label=label, note=note,
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price=last_val, currency=None, as_of=last_date,
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changes=changes, anchor_date=anchor_used,
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)
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except Exception as e:
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return Quote(symbol, "ons", label, note, None, None, None, error=str(e))
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# --- ECB Data Portal (no API key, daily euro-area data) ---------------------
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|
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async def fetch_ecb(
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client: httpx.AsyncClient,
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symbol: str,
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label: str,
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note: str,
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anchor: str | None = None,
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) -> Quote:
|
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"""Fetch an ECB Statistical Data Warehouse series. `symbol` format:
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<dataset>/<series_key>
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e.g. 'YC/B.U2.EUR.4F.G_N_A.SV_C_YM.SR_10Y' for 10y EZ AAA yield (daily).
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ECB returns SDMX-JSON; we extract the single observation series."""
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try:
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if "/" not in symbol:
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raise ValueError("ECB symbol must be dataset/series_key")
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dataset, series_key = symbol.split("/", 1)
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r = await client.get(
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ECB_API.format(dataset=dataset, series_key=series_key),
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params={"format": "jsondata"},
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headers={**UA, "Accept": "application/json"},
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timeout=20,
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)
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r.raise_for_status()
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data = r.json()
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# SDMX-JSON: dataSets[0].series[key].observations is { "<idx>": [value, ...] }
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# where <idx> indexes into structure.dimensions.observation[0].values for time.
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ds = (data.get("dataSets") or [{}])[0]
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series_map = ds.get("series") or {}
|
|
if not series_map:
|
|
raise ValueError("no series in response")
|
|
ser = next(iter(series_map.values()))
|
|
obs = ser.get("observations") or {}
|
|
times = [
|
|
v["id"]
|
|
for v in data["structure"]["dimensions"]["observation"][0]["values"]
|
|
]
|
|
|
|
rows: list[tuple[str, float]] = []
|
|
for idx_str in sorted(obs, key=int):
|
|
v = obs[idx_str][0]
|
|
if v is None:
|
|
continue
|
|
t = times[int(idx_str)]
|
|
iso = _eurostat_time_to_iso(t) # reuse: ECB time codes match Eurostat
|
|
try:
|
|
rows.append((iso, float(v)))
|
|
except (TypeError, ValueError):
|
|
continue
|
|
|
|
if not rows:
|
|
raise ValueError("no observations")
|
|
last_date, last_val = rows[-1]
|
|
|
|
def _find_back(min_days: int) -> float | None:
|
|
ref = datetime.strptime(last_date, "%Y-%m-%d").date()
|
|
for d, v in reversed(rows[:-1]):
|
|
if (ref - datetime.strptime(d, "%Y-%m-%d").date()).days >= min_days:
|
|
return v
|
|
return None
|
|
|
|
prev_val = rows[-2][1] if len(rows) >= 2 else None
|
|
changes = {
|
|
"1d": _pct(prev_val, last_val),
|
|
"1m": _pct(_find_back(28), last_val),
|
|
"1y": _pct(_find_back(360), last_val),
|
|
}
|
|
anchor_used: str | None = None
|
|
if anchor:
|
|
anchor_d = _parse_date(anchor).date()
|
|
for d, v in reversed(rows):
|
|
if datetime.strptime(d, "%Y-%m-%d").date() <= anchor_d:
|
|
changes["anchor"] = _pct(v, last_val)
|
|
anchor_used = d
|
|
break
|
|
|
|
return Quote(
|
|
symbol=symbol, source="ecb", label=label, note=note,
|
|
price=last_val, currency=None, as_of=last_date,
|
|
changes=changes, anchor_date=anchor_used,
|
|
)
|
|
except Exception as e:
|
|
return Quote(symbol, "ecb", label, note, None, None, None, error=str(e))
|
|
|
|
|
|
# --- Source registry ----------------------------------------------------------
|
|
|
|
FetcherFn = Callable[..., "Quote"]
|
|
SOURCES: dict[str, FetcherFn] = {
|
|
"yahoo": fetch_yahoo,
|
|
"FRED": fetch_fred,
|
|
"EUROSTAT": fetch_eurostat,
|
|
"ONS": fetch_ons,
|
|
"ECB": fetch_ecb,
|
|
}
|
|
|
|
|
|
def parse_symbol(symbol: str) -> tuple[FetcherFn, str]:
|
|
if ":" in symbol:
|
|
prefix, _, ident = symbol.partition(":")
|
|
if prefix in SOURCES:
|
|
return SOURCES[prefix], ident
|
|
return SOURCES["yahoo"], symbol
|
|
|
|
|
|
async def fetch(
|
|
client: httpx.AsyncClient,
|
|
symbol: str,
|
|
label: str,
|
|
note: str,
|
|
anchor: str | None = None,
|
|
) -> Quote:
|
|
fn, ident = parse_symbol(symbol)
|
|
return await fn(client, ident, label, note, anchor)
|
|
|
|
|
|
# --- Currency normalisation ---------------------------------------------------
|
|
|
|
|
|
async def _get_fx_rate(
|
|
client: httpx.AsyncClient,
|
|
from_ccy: str,
|
|
to_ccy: str,
|
|
cache: dict[tuple[str, str], float | None],
|
|
) -> float | None:
|
|
if from_ccy == to_ccy:
|
|
return 1.0
|
|
if from_ccy == "GBp": # LSE pence
|
|
gbp = await _get_fx_rate(client, "GBP", to_ccy, cache)
|
|
return None if gbp is None else 0.01 * gbp
|
|
key = (from_ccy, to_ccy)
|
|
if key in cache:
|
|
return cache[key]
|
|
pair = f"{from_ccy}{to_ccy}=X"
|
|
try:
|
|
r = await client.get(
|
|
YAHOO_CHART.format(symbol=pair),
|
|
params={"interval": "1d", "range": "5d"},
|
|
headers=UA, timeout=10,
|
|
)
|
|
r.raise_for_status()
|
|
rate = r.json()["chart"]["result"][0]["meta"].get("regularMarketPrice")
|
|
cache[key] = rate
|
|
return rate
|
|
except Exception:
|
|
cache[key] = None
|
|
return None
|
|
|
|
|
|
async def normalise_to_base(
|
|
client: httpx.AsyncClient, quotes: list[Quote], base: str
|
|
) -> None:
|
|
cache: dict[tuple[str, str], float | None] = {}
|
|
base = base.upper()
|
|
for q in quotes:
|
|
if q.price is None or not q.currency:
|
|
continue
|
|
rate = await _get_fx_rate(client, q.currency, base, cache)
|
|
if rate is None:
|
|
continue
|
|
q.price_base = q.price * rate
|
|
q.currency_base = base
|