可观测性¶

健康检查接口无需认证，指标接口需要 Token。

全局健康检查¶

GET /api/v1/health

适合作为存活探针、监控系统轮询端点。

响应：

{
  "success": true,
  "data": {
    "accounts": {
      "55009640": {
        "connected": true,
        "reconnecting": false,
        "reconnect_attempts": 0,
        "last_ping_ok_time": 1775550307.58
      },
      "55009641": {
        "connected": true,
        "reconnecting": false,
        "reconnect_attempts": 0,
        "last_ping_ok_time": 1775550307.58
      }
    },
    "total": 2,
    "healthy": 2
  }
}

单账号健康检查¶

GET /api/v1/health/{account_id}

响应：

{
  "success": true,
  "data": {
    "account_id": "55009640",
    "connected": true,
    "reconnecting": false,
    "reconnect_attempts": 0,
    "last_ping_ok_time": 1775550307.58,
    "connected_at": 1775550000.0,
    "xtdata_available": true,
    "xttrader_available": true
  }
}

全局调用指标¶

GET /api/v1/metrics
X-API-Token: <token>

响应：

{
  "success": true,
  "data": {
    "55009640": {
      "total_calls": 42,
      "success_calls": 42,
      "error_calls": 0,
      "timeout_calls": 0,
      "error_rate": 0.0,
      "avg_latency_ms": 4.0,
      "p50_latency_ms": 3.0,
      "p95_latency_ms": 16.0,
      "uptime_seconds": 3600.0,
      "ops": {
        "query_positions": {"total": 20, "success": 20, "error": 0, "timeout": 0},
        "query_asset":     {"total": 10, "success": 10, "error": 0, "timeout": 0},
        "order_stock":     {"total": 5,  "success": 5,  "error": 0, "timeout": 0},
        "get_full_tick":   {"total": 7,  "success": 7,  "error": 0, "timeout": 0}
      }
    }
  }
}

指标说明：

字段	说明
`total_calls`	累计调用次数
`error_rate`	最近 100 次的错误率
`avg_latency_ms`	最近 1000 次的平均延迟（毫秒）
`p50_latency_ms`	P50 延迟
`p95_latency_ms`	P95 延迟
`timeout_calls`	超时次数
`ops`	按操作类型分组统计

单账号调用指标¶

GET /api/v1/metrics/{account_id}
X-API-Token: <token>

返回格式与全局指标中单账号条目相同。