I am getting {"code":-1116,"msg":"Invalid orderType."} whenever I tried to create SL and Tp

API Futures API
,
1 
    await binance.futuresOrder( symbol,closeSide, 0, undefined, {
      type: 'TAKE_PROFIT',
      stopPrice: tpPrice,
      reduceOnly: true,
      workingType: 'MARK_PRICE',
      closePosition:true,
      timeInForce: 'GTC'

    });
2

Hey,
Could you provide more information on the library you’re using to make this request, or share the final URL with the parameters?

3

Sure ,
I’m using binance-node-api,

here is instance code :

const binance = new Binance().options({
  APIKEY: apiKey,
  APISECRET: apiSecret,
  httpBase: 'https://testnet.binancefuture.com', // Important
  test:true,
  default_type:"futures"
});

I am using One Way Mode and market purchase order is being triggered sucessfully.
but for tp and Sl i am getting invalid order type again & again.

 let tpOrder = await binance.futuresOrder(
      symbol,
      'SELL',
      0, // quantity 0 because closePosition: true
      undefined,
      {
        type: 'TAKE_PROFIT_MARKET',
        stopPrice: 122000, // Adjust this for current market price
        closePosition: true,
        reduceOnly: true,
        workingType: 'MARK_PRICE',
        timeInForce: 'GTC'
      }
    );
4

As API doesn’t support TP/SL, I recommend referring to the post below for instructions on placing a TP/SL order indirectly: How to implement OTOCO(TP/SL) orders using API - #24 by gold-er