mirror of
https://github.com/caty21/forex-dashboard.git
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caty21
886a5b426f
- Add export const dynamic = "force-dynamic" to routes previously pre-rendered as static (rate-probabilities, news, fx, yields, calendar) → fixes empty data on Vercel where static pre-render got HTTP 403 - Add PWA: manifest.json, sw.js, icons, layout meta + apple-touch-icon Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
91 lines
3.5 KiB
TypeScript
91 lines
3.5 KiB
TypeScript
import { NextResponse } from "next/server";
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import { fetchTEBondYields } from "@/lib/tebonds";
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export const dynamic = "force-dynamic";
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// Variation % d'un pair FX vs clôture J-1 (Yahoo Finance, cache 5 min)
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// Valeur positive = devise X plus forte vs USD (ou USD plus fort si pair inversé)
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async function fxChangePct(symbol: string, invert = false): Promise<number | null> {
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try {
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const res = await fetch(
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`https://query1.finance.yahoo.com/v8/finance/chart/${encodeURIComponent(symbol)}?interval=1d&range=2d`,
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{ next: { revalidate: 300 }, headers: { "User-Agent": "Mozilla/5.0" } }
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);
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if (!res.ok) return null;
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const meta = (await res.json())?.chart?.result?.[0]?.meta as { regularMarketPrice?: number; chartPreviousClose?: number } | undefined;
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const cur = meta?.regularMarketPrice ?? null;
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const prev = meta?.chartPreviousClose ?? null;
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if (cur === null || prev === null || prev === 0) return null;
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const pct = (cur - prev) / prev * 100;
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return parseFloat((invert ? -pct : pct).toFixed(3));
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} catch { return null; }
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}
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// 10Y sovereign yields — source unique : tradingeconomics.com/bonds (HTML statique)
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// Remplace les sources précédentes (FRED DGS10 + IRLTLT01XXM156N mensuel + ECB/BoE APIs)
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// qui avaient des décalages allant de 1 jour (FRED daily) à 1 mois (FRED monthly JPY/CHF/AUD/NZD).
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// TE bonds = données du jour pour les 8 devises, cache 1h.
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export async function GET() {
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const [bondData, fxResults] = await Promise.all([
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fetchTEBondYields(),
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Promise.all([
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fxChangePct("EURUSD=X"), // EUR: positif = EUR fort
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fxChangePct("GBPUSD=X"), // GBP: positif = GBP fort
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fxChangePct("USDJPY=X", true), // JPY: inversé (USD/JPY haut = JPY faible)
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fxChangePct("USDCHF=X", true), // CHF: inversé
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fxChangePct("USDCAD=X", true), // CAD: inversé
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fxChangePct("AUDUSD=X"), // AUD: positif = AUD fort
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fxChangePct("NZDUSD=X"), // NZD: positif = NZD fort
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]),
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]);
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const [eurFx, gbpFx, jpyFx, chfFx, cadFx, audFx, nzdFx] = fxResults;
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const yields: Record<string, number | null> = {
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USD: bondData.USD?.yield10y ?? null,
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EUR: bondData.EUR?.yield10y ?? null,
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GBP: bondData.GBP?.yield10y ?? null,
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JPY: bondData.JPY?.yield10y ?? null,
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CHF: bondData.CHF?.yield10y ?? null,
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CAD: bondData.CAD?.yield10y ?? null,
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AUD: bondData.AUD?.yield10y ?? null,
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NZD: bondData.NZD?.yield10y ?? null,
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};
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const dayDeltas: Record<string, number | null> = {
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USD: bondData.USD?.dayDelta ?? null,
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EUR: bondData.EUR?.dayDelta ?? null,
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GBP: bondData.GBP?.dayDelta ?? null,
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JPY: bondData.JPY?.dayDelta ?? null,
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CHF: bondData.CHF?.dayDelta ?? null,
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CAD: bondData.CAD?.dayDelta ?? null,
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AUD: bondData.AUD?.dayDelta ?? null,
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NZD: bondData.NZD?.dayDelta ?? null,
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};
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// Spread vs USD (bps)
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const usd = yields.USD;
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const spreads: Record<string, number | null> = {};
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for (const [ccy, yld] of Object.entries(yields)) {
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if (ccy === "USD" || yld === null || usd === null) {
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spreads[ccy] = null;
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} else {
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spreads[ccy] = Math.round((yld - usd) * 100);
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}
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}
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// Variation FX journalière par devise (positif = devise forte vs USD)
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const fxDayPct: Record<string, number | null> = {
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USD: 0,
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EUR: eurFx,
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GBP: gbpFx,
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JPY: jpyFx,
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CHF: chfFx,
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CAD: cadFx,
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AUD: audFx,
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NZD: nzdFx,
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};
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return NextResponse.json({ yields, spreads, dayDeltas, fxDayPct, timestamp: Date.now() });
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}
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