how to open a position in btc and not in const for coin -m?

API Futures API
1

Hello.
through the web terminal of the browser in coins, you can open a position in bitcoins and in const. How can I do the same via api request? If so, an example request.
Right now I’m getting the error “code”:-1111,“msg”:“Precision is over the maximum defined for this asset.”
To POST request https://testnet.binancefuture.com/dapi/v1/order?symbol=BTCUSD_PERP&side=BUY&type=MARKET&timeInForce=GTC&quantity=0.1&timestamp=ххххххх

2

There are a few filters that clients should follow to place orders. Please find the details from the document:

https://binance-docs.github.io/apidocs/futures/en/#filters

The specific filter rules can be found from this endpoint: Binance API Documentation

3

your answer means nothing. I asked why in the terminal you can choose how much to place an order, but there is no such possibility through api.

4

From API, you can only specify the contract numbers as the parameter “quantity”.

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