Illegal characters found in parameter

[sanchoflat]

Hi.
I wrote some programm, it works for me on win10 and VS2017. But my friend can't launch it. He uses win10 and VS2017 too. When i use something like this,

var res = api.PlaceAsync(new LimitOrder(user)
            {
                Symbol = Symbol.BTC_USDT,
                Side = OrderSide.Buy,
                Quantity = 0.0001m,
                Price = 11500

            }).Result;

I fails with exception:

Inner Exception 1:
BinanceHttpException: [BadRequest]: 'Bad Request' - Illegal characters found in parameter 'quantity'; legal range is '^([0-9]{1,20})(\.[0-9]{1,20})?$'. (-1100)

What could it be? Thanks!

[sanchoflat]

I'm trying to run it on Win8 and VS2017 and I have the same problem. I start debugging and found some difference in request parameters:
This is my request and it works.

{Method: POST, RequestUri: '/api/v3/order?symbol=BTCUSDT&side=BUY&type=LIMIT&newOrderRespType=RESULT&quantity=0.0001&price=11500&timeInForce=GTC&timestamp=1514277360683&signature=FA4F1C101303FE8ABF5268DDB4FD6B8B00938A4BA079E9F11BFA6D71211D0403', Version: 1.1, Content: <null>, Headers:
{
  X-MBX-APIKEY: ...
}}

This is request on win8 and win10 on another PC:

{Method: POST, RequestUri: 'https://www.binance.com/api/v3/order?symbol=BTCUSDT&side=BUY&type=LIMIT&newOrderRespType=RESULT&quantity=0,0001&price=11500&timeInForce=GTC&timestamp=1514277175548&signature=845D9A211F2336E4A80E9FDCEF66C3BD8F8D5BE898FEF07CB34D607B5936453C', Version: 1.1, Content: <null>, Headers:
{
  X-MBX-APIKEY: ...
  User-Agent: Binance/1.0.0
  User-Agent: (.NET; +https://github.com/sonvister/Binance)
}}

And it fails. The reason was in quantity=0,0001. The problem was in ",". And I replace
request.AddParameter("quantity", quantity);
to
request.AddParameter("quantity", quantity.ToString().Replace(",", "."));

What can you say about? Thx.

[sonvister]

The issue is the decimal to string conversion with ToString() that uses CurrentCulture.NumberFormat with a NumberDecimalSeparator property value of "," rather than "." depending upon location. I'll specify CultureInfo.InvariantCulture (which uses ".") in the decimal to string conversion to fix this. Thanks.