Another -2010 insufficient balance about binancedotnet

[glitch100]

I wonder if it's down to the quantity field and whether it is the correct type. Can you retrieve your balance and see what it says?

[tevert]

My Tether balance was at ~55k, ETH was near 0 (and BNB was 35). My napkin math says it should've used nearly all the tether to buy the specified quantity of ETH, plus extra to cover the fee.

I tried again but multiplied the fee deduction by 10 and it went through. So the other elements of my buy order must be correct, but for some reason it thinks it needs somewhat more fee allowance than it actually uses (or I'm totally misunderstanding the fee structure).

Just to clarify, my understanding is that Binance will deduct a 0.1% fee from what currency you're paying, right? And I'm assuming it does a quantity check on your order for fee funds before it sees you intend to pay fees with BNB (which is kinda dumb, but whatever)?

[immayankmodi]

@tevert , Can you please provide some information how you calculate amount/quantity etc filters based on the binance api rules https://github.com/binance-exchange/binance-official-api-docs/blob/master/rest-api.md#symbol-filters here?

[tevert]

Sure, code is here: https://github.com/tevert/Trader/blob/master/Trader/Exchange/Binance.cs#L117

1. Divide the quantity (in USDT) by the price
2. Subtract the fee (assumed to be 0.1%)
3. Subtract the modulus of the LOT_SIZE (that was giving me a filter error before I had that)
4. Lastly do a Math.Round to forcibly reduce the number of decimal places; that was also confusing the API.

Because I'm doing a market buy, I'm pretty sure the filters other than LOT_SIZE don't apply here.

For the purposes of making it work, my local working copy of the code also subtracts a "fudge factor" of 1.5% on top of the fee. A fudge factor of 0.05% wasn't enough though, and I don't think I should need a fudge factor at all, obviously.

[immayankmodi]

Thanks but I'm having issue with min trading limit. Opened help/issue #70 here.