Digital currency futures trading library (test version)

Author: The Little Dream, Date: 2020-04-29 11:19:39
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Digital currency futures trading library (test version)

  • The main function as a test function, call example

If you have any questions, please leave a comment.


// 参数
/*
var MinAmount = 1
var SlidePrice = 5
var Interval = 500
*/

function GetPosition(e, contractType, direction) {
    e.SetContractType(contractType)
    var positions = _C(e.GetPosition);
    for (var i = 0; i < positions.length; i++) {
        if (positions[i].ContractType == contractType && positions[i].Type == direction) {
            return positions[i]
        }
    }

    return null
}

function Open(e, contractType, direction, opAmount) {
    var initPosition = GetPosition(e, contractType, direction);
    var isFirst = true;
    var initAmount = initPosition ? initPosition.Amount : 0;
    var nowPosition = initPosition;
    var directBreak = false 
    var preNeedOpen = 0
    var timeoutCount = 0
    while (true) {
        var ticker = _C(e.GetTicker)
        var needOpen = opAmount;
        if (isFirst) {
            isFirst = false;
        } else {
            nowPosition = GetPosition(e, contractType, direction);
            if (nowPosition) {
                needOpen = opAmount - (nowPosition.Amount - initAmount);
            }
            // 检测directBreak 并且持仓未变的情况
            if (preNeedOpen == needOpen && directBreak) {
                Log("疑似仓位数据延迟,等待30秒", "#FF0000")
                Sleep(30000)
                nowPosition = GetPosition(e, contractType, direction);
                if (nowPosition) {
                    needOpen = opAmount - (nowPosition.Amount - initAmount);
                }
                /*
                timeoutCount++
                if (timeoutCount > 10) {
                    Log("连续10次疑似仓位延迟,下单失败!", "#FF0000")
                    break
                }
                */
            } else {
                timeoutCount = 0
            }
        }
        if (needOpen < MinAmount) {
            break;
        }
        
        var amount = needOpen;
        preNeedOpen = needOpen
        e.SetDirection(direction == PD_LONG ? "buy" : "sell");
        var orderId;
        if (direction == PD_LONG) {
            orderId = e.Buy(ticker.Sell + SlidePrice, amount, "开多仓", contractType, ticker);
        } else {
            orderId = e.Sell(ticker.Buy - SlidePrice, amount, "开空仓", contractType, ticker);
        }

        directBreak = false
        var n = 0
        while (true) {
            Sleep(Interval);
            var orders = _C(e.GetOrders);
            if (orders.length == 0) {
                if (n == 0) {
                    directBreak = true
                }
                break;
            }
            for (var j = 0; j < orders.length; j++) {
                e.CancelOrder(orders[j].Id);
                if (j < (orders.length - 1)) {
                    Sleep(Interval);
                }
            }
            n++
        }
    }

    var ret = {
        price: 0,
        amount: 0,
        position: nowPosition
    };
    if (!nowPosition) {
        return ret;
    }
    if (!initPosition) {
        ret.price = nowPosition.Price;
        ret.amount = nowPosition.Amount;
    } else {
        ret.amount = nowPosition.Amount - initPosition.Amount;
        ret.price = _N(((nowPosition.Price * nowPosition.Amount) - (initPosition.Price * initPosition.Amount)) / ret.amount);
    }
    return ret;
}

function Cover(e, contractType, opAmount, direction) {
    var initPosition = null;
    var position = null;
    var isFirst = true;

    while (true) {
        while (true) {
            Sleep(Interval);
            var orders = _C(e.GetOrders);
            if (orders.length == 0) {
                break;
            }
            for (var j = 0; j < orders.length; j++) {
                e.CancelOrder(orders[j].Id);
                if (j < (orders.length - 1)) {
                    Sleep(Interval);
                }
            }
        }

        position = GetPosition(e, contractType, direction)
        if (!position) {
            break
        }
        if (isFirst == true) {
            initPosition = position;
            opAmount = Math.min(opAmount, initPosition.Amount)
            isFirst = false;
        }

        var amount = opAmount - (initPosition.Amount - position.Amount)
        if (amount <= 0) {
            break
        }

        var ticker = _C(e.GetTicker)
        if (position.Type == PD_LONG) {
            e.SetDirection("closebuy");
            e.Sell(ticker.Buy - SlidePrice, amount, "平多仓", contractType, ticker);
        } else if (position.Type == PD_SHORT) {
            e.SetDirection("closesell");
            e.Buy(ticker.Sell + SlidePrice, amount, "平空仓", contractType, ticker);
        }

        Sleep(Interval)
    }

    return position
}

$.OpenLong = function(e, contractType, amount) {
    if (typeof(e) == "string") {
        amount = contractType
        contractType = e
        e = exchange
    }

    return Open(e, contractType, PD_LONG, amount);
}

$.OpenShort = function(e, contractType, amount) {
    if (typeof(e) == "string") {
        amount = contractType
        contractType = e
        e = exchange
    }

    return Open(e, contractType, PD_SHORT, amount);
};

$.CoverLong = function(e, contractType, amount) {
    if (typeof(e) == "string") {
        amount = contractType
        contractType = e
        e = exchange
    }

    return Cover(e, contractType, amount, PD_LONG);
};

$.CoverShort = function(e, contractType, amount) {
    if (typeof(e) == "string") {
        amount = contractType
        contractType = e
        e = exchange
    }

    return Cover(e, contractType, amount, PD_SHORT);
};


function main() {
    Log(exchange.GetPosition())
    var info = $.OpenLong(exchange, "quarter", 100)
    Log(info, "#FF0000")

    Log(exchange.GetPosition())
    info = $.CoverLong(exchange, "quarter", 30)
    Log(exchange.GetPosition())
    Log(info, "#FF0000")

    info = $.CoverLong(exchange, "quarter", 80)
    Log(exchange.GetPosition())
    Log(info, "#FF0000")
}

More

The bone knifeIn this article, we're going to talk about how to use the main function to refer to something. For example, let's say you open a contract for BTC_USDT quarterly at $30,000, how should you write it? Live to explain the main function. var info = $.OpenLong ((exchange, "quarter", 100) is the name of the So what does exchange 100 represent?

High suction low throwSlidePrice should ideally be a price-to-earnings ratio.

The Little Dream$0.OpenLong ((exchange, "quarter", 100) is a free exchange. The exchange is the object of this exchange, Kido, a quarterly contract, 100 pieces.

The Little DreamHigh frequency suggests writing a separate trading mechanism, which has some transaction residual detection, which can be time consuming. High frequency suggests customizing the trading logic directly.

High suction low throwI'm using this OpenLong DOT ((4 knives), give me a list of 9 knives ((4+5).

The Little DreamNo, it's a slip price, a little extra for one meal.