how to fix: code: -2019, msg: 'Margin is insufficient.'

API Futures API
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1

I am trying to open a simple short position on coin-m futures.
I am using node-binance-api for this
I read this margin_insufficient however in my case initialMargin + orderMargin != marginBalance

Here’s the code:

const Binance = require('node-binance-api');

const binance = new Binance().options({
APIKEY: 'some api key',
APISECRET: 'some secrets',
'family': 4,
});

let temp = async () => {
//console.info( await binance.universalTransfer("MAIN_CMFUTURE","XRP",10) );
console.info(await binance.deliveryMarginType("XRPUSD_PERP", "CROSSED"));
console.info(await binance.deliveryLeverage("XRPUSD_PERP", 1));
console.info(await binance.deliveryMarketSell("XRPUSD_PERP", 70, { positionSide: "SHORT"}));
}

temp();

I have also checked the balance, here is the result:

[Object: null prototype] { 
     asset: 'XRP', 
     walletBalance: '104.91600000', 
     unrealizedProfit: '0.00000000', 
     marginBalance: '104.91600000', 
     maintMargin: '0.00000000', 
     initialMargin: '0.00000000', 
     positionInitialMargin: '0.00000000', 
     openOrderInitialMargin: '0.00000000', 
     maxWithdrawAmount: '104.91600000', 
     crossWalletBalance: '104.91600000', 
     crossUnPnl: '0.00000000', 
     availableBalance: '104.91600000', 
     updateTime: 1696236724456 
}

Not sure why the margin insufficient. How can i fix this error?

2

https://binance-docs.github.io/apidocs/delivery/en/#new-order-trade

The quantity is measured by contract amount. I see you’re sending Short Position with quantity=70, and knowing 1 contract = 10 USD, the cost in settling coin XRP, is probably way above your XRP margin balance.

3

is there any way to put in amount as plain USDT or do i just need to convert the current coin price to usdt amount?

4

Talked with binance customer support, the only way (from the api, not ui) is to specify the quantity measured by contract amount.