binance - Binance Api - 买卖功能 - python

Question

是否有人为买卖“DOGEUSDT”之类的货币对或任何其他货币对（保证金交易）制定了适当的工作功能，我已尽力而为，但最终出现了不同的错误，例如-批量失败，资金不足或最常见的错误此 API 的已知价格过滤器错误

我想出的功能如下，有人可以告诉我我错过了什么

1. 此功能用于提出买入/空头数量，并且效果相当不错

    def buy_quantity(symbol,asset):
        a = 0
        while a < 3:
            try:
                bal = pd.DataFrame(client.get_margin_account()['userAssets'])
                bal = bal[bal['asset']==asset]
                bal = float(bal['free']) * 0.90
                break
           except:
                print("can't extract asset value..retrying")
                a+=1
        price = float(client.get_recent_trades(symbol=symbol)[0]['price'])    
        stepSize = float(client.get_symbol_info(symbol)['filters'][2]['stepSize'])
        precision = int(round(-math.log(stepSize, 10), 0)) 
        quantity = (bal / price)*0.9995 # Trading fee taken in consideration 
        quantity = round(quantity,precision)
        return quantity
   

2. 这个功能是补空，它基本上是试图给你借来的数量

   def sell_quantity1(asset):
        a = 0
        while a < 3:
            try:
                order = pd.DataFrame(client.get_margin_account()['userAssets'])
                order = order[order['asset']==asset]
                order = float(order['borrowed'])
                break
            except:
                print("can't extract borrowed order book...retrying")
                a+=1
        order = round(order,5)
        return order
   

3. 此功能是卖出多头头寸

    def sell_quantity2(asset):
        a = 0
        while a < 3:
            try:
                order = pd.DataFrame(client.get_margin_account()['userAssets'])
                order = order[order['asset']==asset]
                order = float(order['free'])
                break
            except:
                print("can't extract order book...retrying")
                a+=1
        order = round(order,5)
        return order
   

我认为功能 2 和 3 应该像功能 1 一样正常工作，但它们没有，弹出一些或其他错误 Lot size failure, Insufficient fund, 或其他东西，我在这里缺少什么，有人可以帮助我吗？挣扎了几天

提前致谢

Answer 1

def order(side, quoteOrderQty, symbol, order_type=ORDER_TYPE_MARKET):
    try:
        order = client.create_order(symbol=symbol, side=side, type=order_type, quoteOrderQty=quoteOrderQty)
        print(order)
    except Exception as e:
        print("exception - {}".format(e))