Ethereum: Python-Binance API – Lot Size Filter Error

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Filter Error: LOT_SIZE

When using the Binance Python API to execute buy or sell orders, you may encounter a filter failure error. This happens especially when there is a conflict between the required lot size and the available balance.

Cause of the problem:

In most cases, the problem is caused by trying to trade with a lot size that is too large for your account balance. This can be due to a number of reasons, including:

• Insufficient balance on the exchange (Binance)

• Incorrect or outdated API settings

• Insufficient risk management

Solution:

To resolve this issue, you need to adjust your lot size to ensure that it does not exceed your available balance. Here is a step-by-step guide to help you:

Step 1: Check the lot size limit

First, make sure that the lot size limit is set correctly in your Binance API settings. You can do this by going to your account settings and navigating to the API tab.

• Go to Settings > API

• Look for the LOT_SIZE setting

• Make sure it is not set too high (e.g. above 10,000)

Step 2: Adjust the lot size

If the lot size limit is set correctly, you may need to adjust the lot size to a lower value. You can do this using the following code:

import binanceapi

Your API credentials
api_key = "YOUR_API_KEY"
api_secret = "YOUR_API_SECRET"

Initialize Binance API client
binance = binanceapi.Client(api_key=api_key, api_secret=api_secret)

Get available balance
available_balance = binance.get_account().balance()

Define lot size adjustment
adjustment_amount = 1000

Adjust lot size to avoid filter failure
adjustment_lot_size = available_balance - adjust_amount

In this code snippet we get available balance using get_account().balance(). Then we define the adjustment_amount variable (e.g. 1000) and subtract it from the available balance. This will ensure that the lot size adjustment does not exceed the available balance.

Step 3: Test your API

Once you have made the adjustments, test your API by placing a buy or sell order with the adjusted lot size. If you still get the filter failure error, make sure you have checked the following:

• Make sure that the LOT_SIZE setting is set correctly in the Binance API settings.

• Check that the available balance is sufficient for the transaction.

Sample code:

Here is a complete sample code snippet that shows how to adjust the lot size using the Python-Binance API:

import binanceapi

Your API credentials
api_key = "YOUR_API_KEY"
api_secret = "YOUR_API_SECRET"

Initialize the Binance API client
binance = binanceapi.Client(api_key=api_key, api_secret=api_secret)
def adjust_lot_size():

Get available balance
available_balance = binance.get_account().balance()

Define lot size adjustment
adjust_amount = 1000

Adjust lot size to avoid filter failure
adjust_lot_size = available_balance - adjust_amount

Place order buy or sell with adjusted lot size
try:
binance.place_order(
symbol="BTCUSDT",
side="buy",
type="limit",
amount=adjustment_amount,
price=1000, 
Sample price
lot_size=adjustment_lot_size
)
except binanceapi.exceptions.APIError as e:
print(f"APIError: {e}")

Make sure to replace YOUR_API_KEY and YOUR_API_SECRET with your actual API credentials.

Conclusion:

By following these steps, you should be able to resolve the filter failure error when using the Binance Python API. Remember to adjust the lot size to make sure it does not exceed your available balance.