Forex Dashboard v8.0

2026-08-15 21:48:05 +00:00 · 2026-05-27 13:18:45 +02:00
commit 236afa3087
31 changed files with 9292 additions and 0 deletions
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+import { NextResponse } from "next/server";
+
+// ── Yahoo Finance v7/quote ────────────────────────────────────────────────────
+// Un seul appel pour tous les prix marchés : VIX, S&P, commodités.
+// Pas de clé API. Gratuit. regularMarketChange = delta vs clôture j-1.
+
+type YQuote = {
+  symbol:                     string;
+  regularMarketPrice:         number;
+  regularMarketChange:        number;
+  regularMarketChangePercent: number;
+  regularMarketPreviousClose: number;
+};
+
+async function yahooQuotes(symbols: string[]): Promise<Record<string, YQuote>> {
+  try {
+    const url = `https://query1.finance.yahoo.com/v7/finance/quote?symbols=${symbols.join(",")}&fields=regularMarketPrice,regularMarketChange,regularMarketChangePercent,regularMarketPreviousClose`;
+    const res  = await fetch(url, {
+      next: { revalidate: 3600 }, // 1h — prix de marché
+      headers: {
+        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36",
+        "Accept":     "application/json",
+      },
+    });
+    if (!res.ok) return {};
+    const results: YQuote[] = (await res.json())?.quoteResponse?.result ?? [];
+    return Object.fromEntries(results.map((q) => [q.symbol, q]));
+  } catch { return {}; }
+}
+
+function yVal(q: YQuote | undefined): number | null {
+  return q?.regularMarketPrice ?? null;
+}
+function yDelta(q: YQuote | undefined): number | null {
+  const d = q?.regularMarketChange;
+  return d != null ? parseFloat(d.toFixed(2)) : null;
+}
+function yDeltaPct(q: YQuote | undefined): number | null {
+  const p = q?.regularMarketChangePercent;
+  return p != null ? parseFloat(p.toFixed(2)) : null;
+}
+
+// ── FRED (spreads crédit + taux — 24h cache) ──────────────────────────────────
+
+async function fredObs(series: string, apiKey: string): Promise<number | null> {
+  try {
+    const url = `https://api.stlouisfed.org/fred/series/observations?series_id=${series}&api_key=${apiKey}&file_type=json&sort_order=desc&limit=1`;
+    const res  = await fetch(url, { next: { revalidate: 86400 } });
+    if (!res.ok) return null;
+    const obs  = ((await res.json())?.observations ?? []).find(
+      (o: { value: string }) => o.value !== "."
+    );
+    return obs ? parseFloat(obs.value) : null;
+  } catch { return null; }
+}
+
+// ── CoinGecko (Bitcoin — gratuit, sans clé, cache 1h) ────────────────────────
+
+async function coingeckoBTC() {
+  try {
+    const url = "https://api.coingecko.com/api/v3/simple/price?ids=bitcoin&vs_currencies=usd&include_24hr_change=true";
+    const res  = await fetch(url, { next: { revalidate: 3600 } });
+    if (!res.ok) return { value: null, change24h: null };
+    const d    = await res.json();
+    return { value: d?.bitcoin?.usd ?? null, change24h: d?.bitcoin?.usd_24h_change ?? null };
+  } catch { return { value: null, change24h: null }; }
+}
+
+// ── Alpha Vantage (S&P 500 via SPY — fallback si Yahoo échoue) ───────────────
+
+async function avGlobalQuote(symbol: string, avKey: string) {
+  try {
+    const url = `https://www.alphavantage.co/query?function=GLOBAL_QUOTE&symbol=${symbol}&apikey=${avKey}`;
+    const res  = await fetch(url, { next: { revalidate: 86400 } });
+    if (!res.ok) return { value: null, changePct: null };
+    const q    = (await res.json())?.["Global Quote"];
+    if (!q)    return { value: null, changePct: null };
+    const value     = parseFloat(q["05. price"]);
+    const changePct = parseFloat((q["10. change percent"] ?? "0%").replace("%", ""));
+    return {
+      value:     isNaN(value)     ? null : value,
+      changePct: isNaN(changePct) ? null : changePct,
+    };
+  } catch { return { value: null, changePct: null }; }
+}
+
+// ── GET ───────────────────────────────────────────────────────────────────────
+
+export async function GET() {
+  const fredKey = process.env.FRED_API_KEY;
+  const avKey   = process.env.ALPHA_VANTAGE_KEY;
+  if (!fredKey) return NextResponse.json({ error: "FRED_API_KEY missing" }, { status: 500 });
+
+  // 1. Yahoo Finance — tout en un seul appel (VIX + S&P + commodités + BTC)
+  const [quotes, btcCgRes] = await Promise.all([
+    yahooQuotes(["^VIX", "^GSPC", "GC=F", "SI=F", "BZ=F", "CL=F", "BTC-USD"]),
+    coingeckoBTC(), // fallback si Yahoo échoue pour BTC
+  ]);
+
+  const vix    = quotes["^VIX"];
+  const sp500  = quotes["^GSPC"];
+  const gold   = quotes["GC=F"];
+  const silver = quotes["SI=F"];
+  const brent  = quotes["BZ=F"];
+  const wti    = quotes["CL=F"];
+  const btcYQ  = quotes["BTC-USD"]; // Yahoo primary pour BTC
+
+  // Fallback S&P via AV si Yahoo a échoué (rare)
+  const sp500Fallback = !sp500 && avKey ? await avGlobalQuote("SPY", avKey) : null;
+
+  // 2. FRED — spreads crédit + taux (24h cache, données macro)
+  const [hyRaw, igRaw, us10y, us2y] = await Promise.all([
+    fredObs("BAMLH0A0HYM2", fredKey),
+    fredObs("BAMLC0A0CM",   fredKey),
+    fredObs("DGS10",        fredKey),
+    fredObs("DGS2",         fredKey),
+  ]);
+
+  return NextResponse.json({
+    // Sentiment / Risk-On
+    vix:            yVal(vix),
+    vixDelta:       yDelta(vix),
+    sp500:          yVal(sp500) ?? sp500Fallback?.value,
+    sp500Change:    yDelta(sp500),
+    sp500ChangePct: yDeltaPct(sp500) ?? sp500Fallback?.changePct,
+    btc:            yVal(btcYQ) ?? btcCgRes.value,
+    btcChange24h:   yDeltaPct(btcYQ) ?? btcCgRes.change24h,
+    // Crédit (FRED, fraction × 100 = bps)
+    hySpread: hyRaw != null ? Math.round(hyRaw * 100) : null,
+    igSpread: igRaw != null ? Math.round(igRaw * 100) : null,
+    // Taux (dxy injecté par page.tsx depuis /api/fx)
+    us10y,
+    us2y,
+    curveSlope: us10y !== null && us2y !== null ? Math.round((us10y - us2y) * 100) : null,
+    // Commodités — Yahoo Finance (quasi temps-réel, delta vs clôture j-1)
+    gold:        yVal(gold),
+    goldDelta:   yDelta(gold),
+    silver:      yVal(silver),
+    silverDelta: yDelta(silver),
+    brent:       yVal(brent),
+    brentDelta:  yDelta(brent),
+    wti:         yVal(wti),
+    wtiDelta:    yDelta(wti),
+    // Compat
+    copper: null,
+    timestamp: Date.now(),
+  });
+}