exchange.SetDirection

The exchange.SetDirection() function is used to set the order direction of the {@fun/Trade/exchange.Buy exchange.Buy} function, {@fun/Trade/exchange.Sell exchange.Sell} function when placing orders for futures contracts.

exchange.SetDirection(direction)

The direction parameter is used to set the direction of the futures contract when the order is placed. The optional values are: "buy", "closesell", "sell", "closebuy". direction true string

function main(){
    // For example, set to OKX futures contract of this week
    exchange.SetContractType("this_week")    
    // Set leverage to 5 times
    exchange.SetMarginLevel(5)
    // Set the order type to long
    exchange.SetDirection("buy")
    // Place an order for 2 contracts at 10,000
    exchange.Buy(10000, 2)              
    exchange.SetMarginLevel(5)
    exchange.SetDirection("closebuy")
    exchange.Sell(1000, 2)
}

def main():
    exchange.SetContractType("this_week")
    exchange.SetMarginLevel(5)
    exchange.SetDirection("buy")
    exchange.Buy(10000, 2)
    exchange.SetMarginLevel(5)
    exchange.SetDirection("closebuy")
    exchange.Sell(1000, 2)

void main() {
    exchange.SetContractType("this_week");
    exchange.SetMarginLevel(5);
    exchange.SetDirection("buy");
    exchange.Buy(10000, 2);
    exchange.SetMarginLevel(5);
    exchange.SetDirection("closebuy");
    exchange.Sell(1000, 2);
}

The exchange.SetDirection() function sets the correspondence between the direction of the futures contract transaction and the order placement function:

Order placement functions	The direction set by the parameters of the SetDirection function	Remarks
exchange.Buy	“buy”	Buy and open long positions
exchange.Buy	“closesell”	Buy and close short positions
exchange.Sell	“sell”	Sell and open short positions
exchange.Sell	“closebuy”	Sell and close long positions

{@fun/Trade/exchange.Buy exchange.Buy}, {@fun/Trade/exchange.Sell exchange.Sell}

exchange.SetMarginLevel exchange.SetContractType