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Error placing Ethereum futures orders using Binance webhook trigger

When integrating a Python script to place Ethereum futures orders using the Binance API and triggering them via a webhook in TradingView, issues can arise. In this article, we will cover the “Signature for this request is invalid” error that occurs when trying to place a futures order in Binance.

The problem

In our previous setup:

• We had written a Python script on Heroku to trigger a webhook via TradingView.

• The webhook sends an API request to Binance, which we then used to fetch the required data to place a futures order.

• Unfortunately, when trying to place the order using Binance’s official library (“python-binance”), we get the “Signature for this request is invalid” error.

The solution

To solve this problem, we will focus on the following steps:

• Check your TradingView API credentials: Make sure you have your TradingView API credentials set up correctly in your Heroku environment.

• Check Binance API rate limit: Read Binance’s official documentation on API rate limits and futures order limits to make sure we are not exceeding any limits.

Code Example

Below is a sample code snippet showing how to place a futures order using the python-binance library:

import os
from binance.client import Client

Set up Binance client credentials
client_id = "YOUR_CLIENT_ID"
client_secret = "YOUR_CLIENT_SECRET"

Set up TradingView API credentials
trading_view_token = "YOUR_TRADE_VIEW_TOKEN"

Create new Binance client instance
binance_client = Client(client_id, client_secret)
def place_order(symbol, side, quantity, price):

Place futures order
result = binance_client.placeOrder(
symbol=symbol,
side=side,
type="limit",
timeInForce="gTC"
)

Check if the order was successfully placed
if not result["isSuccess"]:
print(f"Error placing order: {result['errorDetails']}")
else:
print("Order successfully placed!")

Example usage:
place_order("ETHUSDT", "buy", 10, 1000)

Additional tips

• Make sure to update your Heroku environment variables with the correct TradingView API credentials.

• Read Binance’s official documentation for updates on futures order limits and restrictions.

• Consider using a retry mechanism or error handling to handle cases where the order cannot be placed due to rate limits or other reasons.

By following these steps, you should be able to resolve the “Signature for this request is invalid” error when placing a futures order on Binance using the Python-binance library.

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