From 03218dce047650e0942541b487c8f38a628eb443 Mon Sep 17 00:00:00 2001
From: root <root@s52867.vps.hosting>
Date: Thu, 26 Feb 2026 13:57:39 +0000
Subject: [PATCH] fix: split rate/stats refresh intervals, rates 2s stats 2min

---
 backend/main.py       |  7 ++++---
 frontend/app/page.tsx | 24 +++++++++++++++++-------
 2 files changed, 21 insertions(+), 10 deletions(-)

diff --git a/backend/main.py b/backend/main.py
index 005b21f..a5acdc9 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -15,6 +15,7 @@ app.add_middleware(
 
 BINANCE_FAPI = "https://fapi.binance.com/fapi/v1"
 SYMBOLS = ["BTCUSDT", "ETHUSDT"]
+HEADERS = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36"}
 
 # 简单内存缓存（history/stats 60秒，rates 3秒）
 _cache: dict = {}
@@ -38,7 +39,7 @@ async def health():
 async def get_rates():
     cached = get_cache("rates", 3)
     if cached: return cached
-    async with httpx.AsyncClient(timeout=10) as client:
+    async with httpx.AsyncClient(timeout=10, headers=HEADERS) as client:
         tasks = [client.get(f"{BINANCE_FAPI}/premiumIndex", params={"symbol": s}) for s in SYMBOLS]
         responses = await asyncio.gather(*tasks)
     result = {}
@@ -65,7 +66,7 @@ async def get_history():
     if cached: return cached
     end_time = int(datetime.utcnow().timestamp() * 1000)
     start_time = int((datetime.utcnow() - timedelta(days=7)).timestamp() * 1000)
-    async with httpx.AsyncClient(timeout=15) as client:
+    async with httpx.AsyncClient(timeout=15, headers=HEADERS) as client:
         tasks = [
             client.get(f"{BINANCE_FAPI}/fundingRate",
                 params={"symbol": s, "startTime": start_time, "endTime": end_time, "limit": 1000})
@@ -92,7 +93,7 @@ async def get_stats():
     if cached: return cached
     end_time = int(datetime.utcnow().timestamp() * 1000)
     start_time = int((datetime.utcnow() - timedelta(days=7)).timestamp() * 1000)
-    async with httpx.AsyncClient(timeout=15) as client:
+    async with httpx.AsyncClient(timeout=15, headers=HEADERS) as client:
         tasks = [
             client.get(f"{BINANCE_FAPI}/fundingRate",
                 params={"symbol": s, "startTime": start_time, "endTime": end_time, "limit": 1000})
diff --git a/frontend/app/page.tsx b/frontend/app/page.tsx
index a30684f..e3342d1 100644
--- a/frontend/app/page.tsx
+++ b/frontend/app/page.tsx
@@ -13,12 +13,10 @@ export default function Dashboard() {
   const [status, setStatus] = useState<"loading" | "running" | "error">("loading");
   const [lastUpdate, setLastUpdate] = useState<string>("");
 
-  const fetchAll = useCallback(async () => {
+  const fetchRates = useCallback(async () => {
     try {
-      const [r, s, h] = await Promise.all([api.rates(), api.stats(), api.history()]);
+      const r = await api.rates();
       setRates(r);
-      setStats(s);
-      setHistory(h);
       setStatus("running");
       setLastUpdate(new Date().toLocaleTimeString("zh-CN"));
     } catch {
@@ -26,11 +24,23 @@ export default function Dashboard() {
     }
   }, []);
 
+  const fetchAll = useCallback(async () => {
+    try {
+      const [s, h] = await Promise.all([api.stats(), api.history()]);
+      setStats(s);
+      setHistory(h);
+    } catch {
+      // stats/history 失败不影响主界面
+    }
+  }, []);
+
   useEffect(() => {
+    fetchRates();
     fetchAll();
-    const interval = setInterval(fetchAll, 2_000);
-    return () => clearInterval(interval);
-  }, [fetchAll]);
+    const rateInterval = setInterval(fetchRates, 2_000);   // 价格 2秒刷新
+    const slowInterval = setInterval(fetchAll, 120_000);   // 统计 2分钟刷新
+    return () => { clearInterval(rateInterval); clearInterval(slowInterval); };
+  }, [fetchRates, fetchAll]);
 
   return (
     <div className="space-y-6">