Order Size Invalid

[ebweinstein]

I get this message: "Exception: 200-{"code":"300000","msg":"Order size invalid."}"

However, I am trading $50 in USDT to buy ETH. There is no minimum order on KuCoin for $50.

What is the problem?

[abayomi185]

Hey, I don't understand why that is the case with Kucoin too. Please try a higher value or a different pairing.

It's difficult to integrate the min quantity size because the pairing and the coin needs to be determined before checking.

[ebweinstein]

Thanks for your response. To further explore, I went through the front-end web site of KuCoin and bought 1 USDT of ETH with a market order just fine. The minimum ETH buy at KuCoin is .0001. So the minimum is 27c USD. I tried the Simple Pump and Dump program with $50 and it said order size too small. I know it connects to my account fine because it displays my balance. Any other possible suggestions?

[ebweinstein]

Here is the error message:

? Please select trade configuration? market-trade-one

Your USDT balance is 48.87420854

Please ensure Config is correct before proceeding

? Please enter coin for Pump? eth
Traceback (most recent call last):
File "bot-kucoin.py", line 290, in
asyncio.run(main())
File "/usr/lib/python3.8/asyncio/runners.py", line 43, in run
return loop.run_until_complete(main)
File "/usr/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete
return future.result()
File "bot-kucoin.py", line 230, in main
buy_order = market_order(selected_coin_pair, 'buy')
File "bot-kucoin.py", line 144, in market_order
order_id = trade.create_market_order(selected_coin_pair, 'buy', clientOid=str(uuid.uuid4()), size=str(buy_qty))
File "/usr/local/lib/python3.8/dist-packages/kucoin/trade/trade.py", line 164, in create_market_order
return self._request('POST', '/api/v1/orders', params=params)
File "/usr/local/lib/python3.8/dist-packages/kucoin/base_request/base_request.py", line 93, in _request
return self.check_response_data(response_data)
File "/usr/local/lib/python3.8/dist-packages/kucoin/base_request/base_request.py", line 110, in check_response_data
raise Exception("{}-{}".format(response_data.status_code, response_data.text))
Exception: 200-{"code":"300000","msg":"Order size invalid."}

Here is my CONFIG:

################# KUCOIN CONFIG ####################

trade_configs:
market-trade-one:
#Coin pairing for trade
pairing: USDT
#Currently, only market is available, keep unchanged
order_type: market
#Amount from wallet to use for trade buy; range 0 to 1
buy_qty_from_wallet: .1
#Profit margin multiplier; 0.5 equals 50% gain
profit_margin: 0.001
#Amount from wallet to use for trade sell; range 0 to 1
sell_qty_from_wallet: 1
#Refresh interval in milliseconds to check market for current price
refresh_interval: 100
#Timeout in milliseconds if profit margin doesn't reach intended value; 25 seconds
sell_fallback_timeout_ms: 25000

[ebweinstein]

OK it is the math.floor function in the market_order function, rounding my amount to the nearest integer down to 0. I changed math.floor to round() to 4 decimals and this worked.

However, I ran it, and it successfully placed the order, but does not seem to have sold after several minutes, when I expected it to sell after 25 seconds or less. Any ideas?

[ebweinstein]

I was able to programmatically get both the a) max number of decimals and round down from there and b) get the minimum for the particular pair. It's very easy to implement and highly recommend this is added. It's only a few lines of code

symbol_list = client.get_symbol_list()
symbol_list = [e for e in symbol_list if str(e["symbol"]) == str(selected_coin_pair)]
symbol_list[0]['baseIncrement']
symbol_list[0]['baseMinSize']

Then you can

1. have a condition for base MinSize

2. And just round down the buy_qty and sell_qty using this function, where decimals is the length of baseIncrement - 3:

def round_down(value, decimals):
factor = 1 / (10 ** decimals)
return (value // factor) * factor

[abayomi185]

Hi, this is great! I'll implement it in the Node version of the bot