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Ethereum Futures Order Placement Error with Binance Webhook Trigger

When integrating a Python script to place Ethereum futures orders using the Binance API and triggering it via a web hook in TradingView, issues can arise. In this article, we’ll address the « Signature for this request is not valid » error that occurs when attempting 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 web hook sends an API request to Binance, which we then use to retrieve the necessary data for placing a futures order.

• Unfortunately, when we attempt to place the order using Binance’s official library (python-binance), it throws a Signature for this request is not valid error.

The Solution

To resolve this issue, let’s focus on the following steps:

• Verify your TradingView API credentials: Ensure that you’ve correctly set up your TradingView API credentials in your Heroku environment.

• Check Binance API rate limiting: Review Binance’s official documentation for API rate limits and restrictions on futures orders to ensure we’re not exceeding any limitations.

Code Example

Below is an example code snippet demonstrating how to place a futures order using the python-binance library:

import if

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 a new Binance client instance

binance_client = Client(client_id, client_secret)


def place_order(symbol, side, quantity, price):

    
Place the 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 placed successfully!")



Example usage:

place_order("ETHUSDT", "buy", 10, 1000)

Additional Tips

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

• Review Binance’s official documentation for updates on futures order restrictions and limitations.

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

By following these steps, you should be able to resolve the « Signature for this request is not valid » error when placing a futures order in Binance using the Python-binance library.