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我正在尝试使用ib API的 Go 端口连接到我的 Interactive Brokers Trader 工作站。

我可以从 API 连接和读取数据，但是当我尝试在模拟交易账户上下订单时，我收到以下错误：

&{1 321 Error validating request:-'bB' : cause - Cannot set VOL attribute on non-VOL order.}

但我不相信我在请求中设置了 VOL 属性。重现错误的最小程序是：

package main

import (
    "fmt"
    "math"
    "time"

    "github.com/gofinance/ib"
)

func main() {
    eng, err := ib.NewEngine(ib.EngineOptions{
        DumpConversation: true,
        Gateway:          "127.0.0.1:1122",
    })
    if err != nil {
        fmt.Printf("Connection error: %v", err)
    }
    // Note: you have to make sure the connection has been fully established
    // before attempting to do any requests to the TWS. Failure to do so will
    // result in the TWS closing the connection. Typically this can be done by
    // waiting for a callback from an event and the end of the initial connection
    // handshake, such as IBApi.EWrapper.nextValidId or IBApi.EWrapper.managedAccounts
    // https://interactivebrokers.github.io/tws-api/connection.html
    // TODO take apart engine.go and make it wait properly.
    time.Sleep(1 * time.Second)
    defer eng.Stop()
    // printInstrument(eng)
    reqID := eng.NextRequestID()
    o := make(chan ib.Reply)
    eng.Subscribe(o, reqID)
    order := ib.Order{
        Action:     "BUY",
        OrderType:  "LMT",
        TotalQty:   100,
        LimitPrice: 95.94,
    }
    contract := ib.Contract{
        SecurityType:    "STK",
        Symbol:          "MSFT",
        Exchange:        "SMART",
        PrimaryExchange: "NASDAQ",
        Currency:        "USD",
    }
    req := &ib.PlaceOrder{
        Order:    order,
        Contract: contract,
    }
    req.SetID(reqID)
    if err := eng.Send(req); err != nil {
        fmt.Printf("Send error: %v", err)
    }
    fmt.Println("Waiting for reply...")
    reply := <-o
    fmt.Println(reply)
}

程序的输出是：

$ go run main.go
2> '71-1-2-'
2< &{15 1} &{[DU1029297]}
2< &{9 1} &{1}
2< &{4 2} &{-1 2104 Market data farm connection is OK:usfuture}
2< &{4 2} &{-1 2104 Market data farm connection is OK:cashfarm}
2< &{4 2} &{-1 2104 Market data farm connection is OK:usfarm.us}
2< &{4 2} &{-1 2104 Market data farm connection is OK:usfarm}
2< &{4 2} &{-1 2106 HMDS data farm connection is OK:ilhmds}
2< &{4 2} &{-1 2106 HMDS data farm connection is OK:euhmds}
2< &{4 2} &{-1 2106 HMDS data farm connection is OK:fundfarm}
2< &{4 2} &{-1 2106 HMDS data farm connection is OK:ushmds}
2> '3-42-1-0-MSFT-STK--0---SMART-NASDAQ-USD-----BUY-100-LMT-95.94-0-----0--0-0-0-0-0-0-0-0--0-------0--0-0---0-0-0-0-0-0-0-0-0-0-0-0-0-0-0--0-0-0-0-0-0-0-0-----0---0-0--0--'
Waiting for reply...
2< &{4 2} &{1 321 Error validating request:-'bB' : cause - Cannot set VOL attribute on...
&{1 321 Error validating request:-'bB' : cause - Cannot set VOL attribute on non-VOL order.}

请特别注意来自 ib 引擎的转储3-42-1-0-MSFT-STK--0---SMART-NASDAQ-USD-----BUY-100-LMT-95.94-0-----0--0-0-0-0-0-0-0-0--0-------0--0-0---0-0-0-0-0-0-0-0-0-0-0-0-0-0-0--0-0-0-0-0-0-0-0-----0---0-0--0--。也许熟悉 IB API 的人可以告诉我我在这里做错了什么？

4

2 回答 2

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看起来订单对象构造函数将volatilityandvolatilityType属性设置为 0。在这种情况下，由于订单不是波动性订单（类型VOL），因此应该取消设置这些属性。在 IB API 中，“未设置”由该原始数据类型的最大值指定。所以在 Order 类中，

volatilityType需要是= math.MaxInt32或2147483647和

volatility设置math.MaxFloat64 = 1.7976931348623157e+308

于 2019-08-08T15:06:34.777 回答
0

而不是ib.Order{...}，尝试order := ib.NewOrder()

于 2018-08-08T19:36:27.737 回答