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fix: parse factors JSON string in /api/signals/latest

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psycopg2 writes factors as JSON string, asyncpg reads it back as string
instead of dict. Parse it before returning to frontend.
This commit is contained in:
root 2026-03-02 00:44:36 +00:00
parent 05673c0850
commit e405a9c21e
2 changed files with 23 additions and 1 deletions
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9
backend/main.py
View File

@ -432,7 +432,14 @@ async def get_signal_latest(user: dict = Depends(get_current_user)):
sym sym
) )
if row: if row:
result[sym.replace("USDT", "")] = row data = dict(row)
# factors可能是JSON string（psycopg2写入），需要解析
if isinstance(data.get("factors"), str):
try:
data["factors"] = json.loads(data["factors"])
except Exception:
pass
result[sym.replace("USDT", "")] = data
return result return result

15
signal-engine.log
View File

@ -124,3 +124,18 @@
2026-03-02 00:25:21,780 [INFO] signal-engine: [SOLUSDT] 🚨 信号[v51_baseline]: LONG score=92 price=83.8 2026-03-02 00:25:21,780 [INFO] signal-engine: [SOLUSDT] 🚨 信号[v51_baseline]: LONG score=92 price=83.8
2026-03-02 00:25:21,780 [INFO] signal-engine: [SOLUSDT] 🚨 信号[v52_8signals]: LONG score=87 price=83.8 2026-03-02 00:25:21,780 [INFO] signal-engine: [SOLUSDT] 🚨 信号[v52_8signals]: LONG score=87 price=83.8
2026-03-02 00:25:53,073 [INFO] signal-engine: 冷启动保护期结束，模拟盘开仓已启用 2026-03-02 00:25:53,073 [INFO] signal-engine: 冷启动保护期结束，模拟盘开仓已启用
2026-03-02 00:34:24,612 [INFO] signal-engine: 已加载策略配置: v51_baseline, v52_8signals
2026-03-02 00:34:27,756 [INFO] signal-engine: [BTCUSDT] 冷启动完成: 加载459,517条历史数据 (窗口=4h)
2026-03-02 00:34:30,633 [INFO] signal-engine: [ETHUSDT] 冷启动完成: 加载438,434条历史数据 (窗口=4h)
2026-03-02 00:34:31,056 [INFO] signal-engine: [XRPUSDT] 冷启动完成: 加载64,941条历史数据 (窗口=4h)
2026-03-02 00:34:31,510 [INFO] signal-engine: [SOLUSDT] 冷启动完成: 加载66,780条历史数据 (窗口=4h)
2026-03-02 00:34:31,511 [INFO] signal-engine: === Signal Engine (PG) 启动完成 ===
2026-03-02 00:34:31,763 [INFO] signal-engine: [BTCUSDT] 🚨 信号[v51_baseline]: LONG score=90 price=65953.9
2026-03-02 00:34:31,763 [INFO] signal-engine: [BTCUSDT] 🚨 信号[v52_8signals]: LONG score=83 price=65953.9
2026-03-02 00:34:32,046 [INFO] signal-engine: [ETHUSDT] 🚨 信号[v51_baseline]: LONG score=95 price=1945.0
2026-03-02 00:34:32,046 [INFO] signal-engine: [ETHUSDT] 🚨 信号[v52_8signals]: LONG score=87 price=1945.0
2026-03-02 00:34:32,138 [INFO] signal-engine: [XRPUSDT] 🚨 信号[v51_baseline]: LONG score=87 price=1.4
2026-03-02 00:34:32,235 [INFO] signal-engine: [SOLUSDT] 🚨 信号[v51_baseline]: LONG score=92 price=83.8
2026-03-02 00:34:32,236 [INFO] signal-engine: [SOLUSDT] 🚨 信号[v52_8signals]: LONG score=84 price=83.8
2026-03-02 00:35:03,725 [INFO] signal-engine: 冷启动保护期结束，模拟盘开仓已启用
2026-03-02 00:38:28,367 [INFO] signal-engine: [XRPUSDT] 🚨 信号[v52_8signals]: LONG score=75 price=1.4