Understanding the Binance API Signature Query Parameter

If you are trying to access the User Data endpoint using the signature query parameter, it is important to understand the concept of this feature. In this article, we will explain what a signature query parameter is and how to implement it.

What is a signature query parameter?

A signature query parameter is a mechanism used in API requests that allows the inclusion of additional data or information about the request. By specifying this parameter as part of the URL query string, you can pass sensitive or custom data that is not included in the standard request body.

For the Binance User Data endpoint, the signature query parameter is used to retrieve user-specific data without exposing it via the standard API response.

How ​​to use the signature query parameter

How to use the signature query parameter with the userdata endpoint on Binance:

• Add a parameter to the URL: When making a request to the endpoint, add the query parameter “sig” as part of the URL. The format is: `

• Pass signature value in the request body: You can omit the “sig” parameter in the request body if you don’t need to pass any additional data.

Example request:

Here is a sample request that includes both the “sig” query parameter and passes some standard data:

Code implementation

Here is an example of processing the signature query parameter in code:

Import requirements
Class BinanceUserDataAPI:
def __init__(self, base_url, api_key, api_secret):
self.base_url = base_url
self.api_key = api_key
self.api_secret = API secret
def get_user_data(self, symbol, amount, timestamp, page):

Create request URL with signature query parameter
url = f"{self.base_url}/api/v3/spot/userData?sig={self.get_signature()}&"

Add more parameters to request URL
parameters = {
"symbol": symbol,
"amount": amount,
"timestamp": timestamp,
"page": page,
}
response = requests.get(url, parameters=parameters)
return response.json()
def get_signature(self):

Generate signature based on API key and secret

Replace them with actual values
api_key = self.api_key
api_secret = self.api_secret
signature = f"{API key}:{API secret}"
Return signature

Usage example:
binance_user_data_api = BinanceUserDataAPI(" "YOUR_API_KEY", "YOUR_API_SECRET")
Symbol = "ETH"
Amount = 1000.00
Timestamp = 1643723903
Page = "bid"
user_data_response = binance_user_data_api.get_user_data(symbol, amount, timestamp, page)
print(user data response)

Usage

The signature query parameter is a powerful feature of the Binance API that allows you to pass sensitive or custom data without exposing it via the standard request response. By following the steps below and implementing this mechanism in your code, you can access the User Data endpoint on the Binance platform with confidence.