Survive Binance eapi 418/429 with cooldown, soft start, and no ticker raise.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/exchange/binance/rest.py

@@ -1,10 +1,12 @@
-"""币安只读 REST：USDT 永续 (fapi) + 欧洲期权 (eapi)。含节流与 429 退避。"""
+"""币安只读 REST：USDT 永续 (fapi) + 欧洲期权 (eapi)。含节流与 429/418 退避。"""
 
 from __future__ import annotations
 
+import json
 import logging
 import threading
 import time
+from pathlib import Path
 from typing import Any
 
 import httpx
@@ -14,15 +16,15 @@ from .parse import rows_to_option_contracts, safe_float
 
 logger = logging.getLogger(__name__)
 
-# eapi 公共接口较严；UI 1.5s 轮询时必须节流
+_BOOK_TTL_SEC = 3.0
-_BOOK_TTL_SEC = 2.5
+_CONTRACTS_TTL_SEC = 180.0
-_CONTRACTS_TTL_SEC = 120.0
+_MIN_EAPI_INTERVAL_SEC = 0.25
-_MIN_EAPI_INTERVAL_SEC = 0.12
+_DEFAULT_429_COOLDOWN_SEC = 15.0
-_DEFAULT_429_COOLDOWN_SEC = 8.0
+_DEFAULT_418_COOLDOWN_SEC = 120.0
 
 
 class EapiCooldownError(RuntimeError):
-    """eapi 限流冷却中，调用方应使用缓存或跳过。"""
+    """eapi 限流/封禁冷却中。"""
 
 
 class BinanceRestClient:
@@ -33,6 +35,7 @@ class BinanceRestClient:
         eapi_base: str = "https://eapi.binance.com",
         timeout: float = 15.0,
         proxy: str | None = None,
+        cache_dir: str | Path | None = None,
     ) -> None:
         self.fapi_base = fapi_base.rstrip("/")
         self.eapi_base = eapi_base.rstrip("/")
@@ -58,6 +61,9 @@ class BinanceRestClient:
         self._eapi_last_at = 0.0
         self._book_ttl: dict[str, tuple[list[BookLevel], list[BookLevel], int | None, float]] = {}
         self._contracts_ttl: dict[str, tuple[float, list[dict[str, Any]]]] = {}
+        root = Path(cache_dir) if cache_dir else Path(__file__).resolve().parents[3] / "data"
+        root.mkdir(parents=True, exist_ok=True)
+        self._exchange_info_path = root / "binance_eapi_exchangeInfo.json"
 
     def close(self) -> None:
         self._fapi.close()
@@ -66,14 +72,16 @@ class BinanceRestClient:
     def _eapi_cooling(self) -> bool:
         return time.monotonic() < self._eapi_cool_until
 
-    def _mark_eapi_429(self, retry_after: float | None = None) -> None:
+    def _mark_eapi_ban(self, status_code: int, retry_after: float | None = None) -> None:
+        if status_code == 418:
+            wait = _DEFAULT_418_COOLDOWN_SEC
+        else:
             wait = float(retry_after) if retry_after and retry_after > 0 else _DEFAULT_429_COOLDOWN_SEC
             wait = max(wait, _DEFAULT_429_COOLDOWN_SEC)
         self._eapi_cool_until = time.monotonic() + wait
-        logger.warning("binance eapi 429, cooldown %.1fs", wait)
+        logger.warning("binance eapi HTTP %s, cooldown %.0fs", status_code, wait)
 
     def _throttle_eapi(self) -> None:
-        """简单串行节流，避免并发 snapshot/选约打爆 eapi。"""
         now = time.monotonic()
         if now < self._eapi_cool_until:
             raise EapiCooldownError(
@@ -96,18 +104,48 @@ class BinanceRestClient:
             if is_eapi:
                 self._throttle_eapi()
             r = client.get(path, params=params or {})
-            if r.status_code == 429:
+            if r.status_code in (418, 429):
                 if is_eapi:
                     ra = safe_float(r.headers.get("Retry-After"))
-                    self._mark_eapi_429(ra)
+                    self._mark_eapi_ban(r.status_code, ra)
                 r.raise_for_status()
             r.raise_for_status()
             return r.json()
 
+    def _load_exchange_info_disk(self) -> dict[str, Any] | None:
+        try:
+            if not self._exchange_info_path.is_file():
+                return None
+            body = json.loads(self._exchange_info_path.read_text(encoding="utf-8"))
+            return body if isinstance(body, dict) else None
+        except Exception:
+            return None
+
+    def _save_exchange_info_disk(self, body: dict[str, Any]) -> None:
+        try:
+            self._exchange_info_path.write_text(
+                json.dumps(body, ensure_ascii=False), encoding="utf-8"
+            )
+        except Exception as e:
+            logger.debug("save exchangeInfo cache failed: %s", e)
+
     def fetch_option_exchange_info(self) -> dict[str, Any]:
-        if self._exchange_info is None:
+        if self._exchange_info is not None:
+            return self._exchange_info
+        try:
             body = self._get_json(self._eapi, "/eapi/v1/exchangeInfo", is_eapi=True)
-            self._exchange_info = body if isinstance(body, dict) else {}
+            if isinstance(body, dict) and body:
+                self._exchange_info = body
+                self._save_exchange_info_disk(body)
+                return body
+        except Exception as e:
+            logger.warning("binance exchangeInfo fetch failed: %s", e)
+        disk = self._load_exchange_info_disk()
+        if disk:
+            logger.warning("binance exchangeInfo using disk cache")
+            self._exchange_info = disk
+            return disk
+        self._exchange_info = {}
         return self._exchange_info
 
     def fetch_option_instruments(self, underlying: str) -> list[dict[str, Any]]:
@@ -115,7 +153,6 @@ class BinanceRestClient:
         info = self.fetch_option_exchange_info()
         rows = info.get("optionSymbols") or info.get("symbols") or []
         want = (underlying or "ETHUSDT").strip().upper()
-        # 兼容误用 OKX 期权族名
         if "USD_UM" in want or want in ("ETH-USD", "ETH-USDT", "ETHUSD"):
             want = "ETHUSDT"
         eth_mode = want in ("ETH", "ETHUSDT") or (
@@ -127,7 +164,6 @@ class BinanceRestClient:
                 continue
             u = str(row.get("underlying") or row.get("underlyingAsset") or "").upper()
             sym = str(row.get("symbol") or "").upper()
-            # 只收币安格式 ETH-YYMMDD-STRIKE-C/P，避免脏符号进缓存
             if eth_mode:
                 if sym.startswith("ETH-") and u.startswith("ETH"):
                     out.append(row)
@@ -144,6 +180,7 @@ class BinanceRestClient:
         if hit and now - hit[0] < _CONTRACTS_TTL_SEC:
             return hit[1]
         contracts = rows_to_option_contracts(self.fetch_option_instruments(family))
+        if contracts:
             self._contracts_ttl[key] = (now, contracts)
         return contracts
 
@@ -157,10 +194,11 @@ class BinanceRestClient:
                 self._eapi, "/eapi/v1/index", {"underlying": u}, is_eapi=True
             )
             if isinstance(body, dict):
-                return safe_float(body.get("indexPrice") or body.get("price"))
+                px = safe_float(body.get("indexPrice") or body.get("price"))
+                if px:
+                    return px
         except Exception:
             pass
-        # 回退永续标记
         return self.fetch_mark_perp(u if u.endswith("USDT") else "ETHUSDT")
 
     def fetch_mark_perp(self, symbol: str) -> float | None:
@@ -175,9 +213,12 @@ class BinanceRestClient:
         return None
 
     def fetch_mark_option(self, symbol: str) -> float | None:
+        try:
             body = self._get_json(
                 self._eapi, "/eapi/v1/mark", {"symbol": symbol}, is_eapi=True
             )
+        except Exception:
+            return None
         if isinstance(body, list) and body:
             return safe_float(body[0].get("markPrice"))
         if isinstance(body, dict):
@@ -192,9 +233,12 @@ class BinanceRestClient:
         return self.fetch_mark_perp(inst_id)
 
     def fetch_option_ticker(self, symbol: str) -> dict[str, Any] | None:
+        try:
             body = self._get_json(
                 self._eapi, "/eapi/v1/ticker", {"symbol": symbol}, is_eapi=True
             )
+        except Exception:
+            return None
         if isinstance(body, list) and body:
             row = body[0]
             return row if isinstance(row, dict) else None
@@ -205,6 +249,7 @@ class BinanceRestClient:
     def fetch_books(
         self, inst_id: str, sz: int = 5
     ) -> tuple[list[BookLevel], list[BookLevel], int | None]:
+        """期权路径永不向外抛限流异常；失败返回缓存或空盘。"""
         from .parse import is_option_symbol
 
         if is_option_symbol(inst_id):
@@ -217,9 +262,7 @@ class BinanceRestClient:
                     return cached[0], cached[1], cached[2]
                 return [], [], None
 
-            # 币安期权 depth 的 limit 仅支持 10/20/50/100 等，5 会失败
             limit = 10 if int(sz) < 10 else min(int(sz), 100)
-            depth_ok = False
             bids: list[BookLevel] = []
             asks: list[BookLevel] = []
             ts_ms = None
@@ -230,20 +273,20 @@ class BinanceRestClient:
                     {"symbol": inst_id, "limit": limit},
                     is_eapi=True,
                 )
-                depth_ok = isinstance(body, dict)
+                if isinstance(body, dict):
-                if depth_ok and isinstance(body, dict):
                     ts = safe_float(body.get("T") or body.get("E") or body.get("time"))
                     ts_ms = int(ts) if ts is not None else None
                     bids = _levels(body.get("bids") or body.get("b") or [])
                     asks = _levels(body.get("asks") or body.get("a") or [])
             except Exception as e:
                 logger.debug("binance option depth %s: %s", inst_id, e)
-                if self._eapi_cooling() and cached:
+                if cached:
                     return cached[0], cached[1], cached[2]
+                # 冷却中不要再打 ticker
+                if self._eapi_cooling():
+                    return [], [], None
 
-            # depth 缺买卖一时回退 ticker；冷却中不再打
             if (not bids or not asks) and not self._eapi_cooling():
-                try:
                 tick = self.fetch_option_ticker(inst_id)
                 if tick:
                     bid = safe_float(tick.get("bidPrice") or tick.get("b"))
@@ -256,10 +299,8 @@ class BinanceRestClient:
                         bids = [BookLevel(px=bid, sz=bid_sz)]
                     if ask is not None and ask > 0 and not asks:
                         asks = [BookLevel(px=ask, sz=ask_sz)]
-                except Exception as e:
-                    logger.debug("binance option ticker %s: %s", inst_id, e)
 
-            if bids or asks or depth_ok:
+            if bids or asks:
                 self._book_ttl[inst_id] = (bids, asks, ts_ms, time.monotonic())
             return bids, asks, ts_ms
 

backend/app/strategy/engine.py

@@ -230,8 +230,15 @@ class StrategyEngine:
             except asyncio.CancelledError:
                 raise
             except Exception as e:
+                err = str(e)
+                # 限流时勿刷屏；拉长休眠给 eapi 冷却
+                if "418" in err or "429" in err or "cooldown" in err.lower():
+                    logger.warning("strategy tick rate-limited: %s", err[:200])
+                    self._set_state(last_error="币安期权接口限流，稍后自动重试")
+                    await asyncio.sleep(15)
+                    continue
                 logger.exception("strategy tick failed")
-                self._set_state(last_error=str(e))
+                self._set_state(last_error=err)
             await asyncio.sleep(1)
 
     async def _tick_async(self) -> None:

backend/app/strategy/session.py

@@ -112,7 +112,11 @@ class StrategySession:
             return
         self._started = True
         await self.ex.start()
+        try:
             await asyncio.to_thread(self.align_instruments)
+        except Exception as e:
+            # eapi 418/429 时允许先起会话，后续 refresh 再对齐
+            logger.warning("initial ATM align failed (will retry): %s", e)
         await self.ex.resubscribe(
             [
                 self.settings.perp_inst_id,
@@ -205,6 +209,13 @@ class StrategySession:
             put_bids, put_asks, _ = self.ex.fetch_book(pair.put_inst_id, depth=5)
             call_ask = call_asks[0].px if call_asks else None
             put_ask = put_asks[0].px if put_asks else None
+            # REST 被限流时回退 WS/缓存盘口
+            if call_ask is None:
+                cq = self.ex.quote(pair.call_inst_id)
+                call_ask = cq.ask if cq else None
+            if put_ask is None:
+                pq = self.ex.quote(pair.put_inst_id)
+                put_ask = pq.ask if pq else None
             sig = decide(
                 call_ask,
                 put_ask,
@@ -335,7 +346,7 @@ class StrategySession:
 
     async def _refresh_loop(self) -> None:
         while True:
-            await asyncio.sleep(30)
+            await asyncio.sleep(30 if self._pair is not None else 10)
             try:
                 idx = await asyncio.to_thread(
                     self.ex.fetch_index, self.settings.index_inst_id
@@ -346,6 +357,9 @@ class StrategySession:
                 )
                 if mark:
                     self.ex.set_mark_px(self.settings.perp_inst_id, mark)
+                if self._pair is None:
+                    await self.ensure_atm_async(force=True)
+                else:
                     await self.ensure_atm_async(force=False)
             except asyncio.CancelledError:
                 raise