mirror of
https://github.com/caty21/forex-dashboard.git
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caty21
83 lines
3.1 KiB
JavaScript
83 lines
3.1 KiB
JavaScript
// Runs in GitHub Actions (not Vercel) — fetches from rateprobability.com
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// GitHub Actions IPs are not blocked by the site.
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import { writeFileSync, mkdirSync, readFileSync } from "fs";
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const CB_KEYS = [
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["USD", "fed"],
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["EUR", "ecb"],
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["GBP", "boe"],
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["JPY", "boj"],
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["CAD", "boc"],
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["AUD", "rba"],
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["NZD", "rbnz"],
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["CHF", "snb"], // BNS — essai, null si l'endpoint n'existe pas sur rateprobability.com
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];
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const HEADERS = {
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"User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36",
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"Accept": "application/json, text/plain, */*",
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"Accept-Language": "en-US,en;q=0.9",
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"sec-ch-ua": '"Chromium";v="125", "Not.A/Brand";v="24"',
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"sec-ch-ua-mobile":"?0",
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"sec-fetch-dest": "empty",
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"sec-fetch-mode": "cors",
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"sec-fetch-site": "same-origin",
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};
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async function fetchCB(ccy, slug) {
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try {
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const res = await fetch(`https://rateprobability.com/api/${slug}/latest`, {
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headers: { ...HEADERS, "Referer": `https://rateprobability.com/${slug}`, "Origin": "https://rateprobability.com" },
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});
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if (!res.ok) { console.error(`[${ccy}] HTTP ${res.status}`); return null; }
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const body = await res.json();
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console.log(`[${ccy}] OK — meetings: ${body?.today?.rows?.length ?? "?"}`);
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return body;
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} catch (e) {
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console.error(`[${ccy}] Error: ${e.message}`);
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return null;
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}
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}
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const results = {};
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for (const [ccy, slug] of CB_KEYS) {
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const data = await fetchCB(ccy, slug);
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if (data) results[ccy] = data;
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await new Promise(r => setTimeout(r, 300)); // 300ms entre requêtes
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}
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// Rotation : si les données existantes datent de 5–9 jours → les sauvegarder comme previousWeek
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let previousWeek = null;
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let previousWeekFetchedAt = null;
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try {
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const existing = JSON.parse(readFileSync("data/rate-probabilities.json", "utf8"));
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const ageMs = Date.now() - new Date(existing.fetchedAt).getTime();
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const day = 86400000;
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if (ageMs >= 5 * day && ageMs <= 9 * day) {
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// Les données courantes datent d'une semaine → les promouvoir en previousWeek
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previousWeek = existing.data;
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previousWeekFetchedAt = existing.fetchedAt;
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console.log(`\nRotated existing data (${(ageMs / day).toFixed(1)}d old) to previousWeek`);
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} else if (existing.previousWeek && existing.previousWeekFetchedAt) {
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// Conserver le previousWeek existant s'il est encore dans la fenêtre utile (< 11 jours)
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const prevAge = Date.now() - new Date(existing.previousWeekFetchedAt).getTime();
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if (prevAge < 11 * day) {
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previousWeek = existing.previousWeek;
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previousWeekFetchedAt = existing.previousWeekFetchedAt;
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}
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}
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} catch { /* pas de fichier existant */ }
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mkdirSync("data", { recursive: true });
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writeFileSync(
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"data/rate-probabilities.json",
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JSON.stringify({
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data: results,
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fetchedAt: new Date().toISOString(),
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...(previousWeek ? { previousWeek, previousWeekFetchedAt } : {}),
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}, null, 2)
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);
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console.log(`\nSaved ${Object.keys(results).length} CBs: ${Object.keys(results).join(", ")}`);
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if (previousWeek) console.log(`previousWeek preserved (${Object.keys(previousWeek).join(", ")})`);
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