Handling HMAC SHA256 Signature Errors in Binance API Using C#

As a developer, you have probably encountered issues connecting to the Binance API using RestSharp and HMAC SHA256 signature. In this article, we will examine the error message that appears when attempting to authenticate with the API and provide instructions on how to resolve the issue.

Error Message

The error message you are seeing is likely due to an invalid or missing timestamp value in your API request. Specifically, it appears that Binance does not accept the timestamp parameter in the API signature.

Solution: Add the “timestamp” parameter

You can add the “timestamp” parameter to your API request using the following format:

queryString: symbol=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTC&timestamp=1643723906

Note that you should replace 1643723906 with the actual timestamp value for your API request.

Sample Code

Here is an example of how to add the “timestamp” parameter using RestSharp and C#:

using System;
using RestSharp;
namespace BinanceApiAuth
{
public class Program
{
static void Main(string[] args)
{
// Replace with your API credentials
string apiKey = "YOUR_API_KEY";
string apiSecret = "YOUR_SECRET_API_API";
// Replace symbol, side, type and timeInForce with values
string symbol = "LTCBTC";
string side = "BUY";
string type = "LIMIT";
string timeInForce = "GTC";
// Create API request
var request = new RestRequest(" new RestBasicConfig { ApiVersion = "v3" });
// Add timestamp parameter
request.AddQueryParameter("symbol", symbol);
request.AddQueryParameter("side", side);
request.AddQueryParameter("type", type);
request.AddQueryParameter("timeInForce", timeInForce);
var response = new RestResponse();
response.Request = request;
var result = wait RestSharpRestClient.DefaultInstance.ExecuteAsync(response);
Console.WriteLine(result);
}
}
}

Additional Tips

• Remember to replace YOUR_API_KEY and YOUR_API_SECRET with your actual API credentials.

• For more information about Binance API and its parameters, please refer to the [official documentation](

• If you have any authentication or error handling issues, please check the Binance API [error responses]( for more information.

Hope this helps solve your problem! If you have any further questions or need further assistance, please let us know.

Solana Represent