Binance API - “此請求的簽名無效”

Question

我試圖通過 REST API 和 RestSharp 訪問我的幣安賬戶。 這是我的代碼：

public void getaccountdata()
{      


        string apikey = "myapikey";
        string secret = "mysecret";  
       
        var client = new RestClient("https://api.binance.com");

        request = new RestRequest("/api/v3/time", Method.GET);

        response = client.Get(request);

        ttime testtime = new ttime();
        testtime = JsonConvert.DeserializeObject<ttime>response.Content.ToString());

        string timestamp = testtime.serverTime;

        request = new RestRequest("/api/v3/account", Method.GET);

        request.AddHeader("X-MBX-APIKEY", apikey);

        request.AddQueryParameter("recvWindow", "5000");
        request.AddQueryParameter("timestamp", timestamp);

        request.AddQueryParameter("signature", CreateSignature(request.Parameters, secret));

        response = client.Get(request);
 
        System.Diagnostics.Debug.WriteLine(response.Content);

}

public static string CreateSignature(List<Parameter> parameters, string secret)
{
        var signature = "";
        if (parameters.Count > 0)
        {
            foreach (var item in parameters)
            {
                if (item.Name != "X-MBX-APIKEY")
                    signature += $"{item.Name}={item.Value}&";
            }
            signature = signature.Substring(0, signature.Length - 2);
        }


        byte[] keyBytes = Encoding.UTF8.GetBytes(secret);
        byte[] queryStringBytes = Encoding.UTF8.GetBytes(signature);
        HMACSHA256 hmacsha256 = new HMACSHA256(keyBytes);

        byte[] bytes = hmacsha256.ComputeHash(queryStringBytes);

        return BitConverter.ToString(bytes).Replace("-", "").ToLower();
  }

public class ttime
  {
        public string serverTime { get; set; }
  }

基本上我只是想在這里復制解決方案。 但是，我總是收到“此請求的簽名無效”響應。

響應 URI 看起來正確（根據此處的常見問題解答末尾的時間戳和簽名）

有誰知道我做錯了什么？ 謝謝任何幫助！

Answer 1

好的，錯誤是這一行：

signature = signature.Substring(0, signature.Length - 2);

這刪除了時間戳的最后一個字符，所以它應該是：

signature = signature.Substring(0, signature.Length - 1);

因此，如果有人需要 C# 中的 Binance API 的簡單且有效的示例，這里再次完整的工作代碼：

public void getaccountdata()
{        

        string apikey = "myapikey";
        string secret = "mysecret";  
       
        var client = new RestClient("https://api.binance.com");

        request = new RestRequest("/api/v3/time", Method.GET);

        response = client.Get(request);

        ttime testtime = new ttime();
        testtime = JsonConvert.DeserializeObject<ttime>response.Content.ToString());

        string timestamp = testtime.serverTime;

        request = new RestRequest("/api/v3/account", Method.GET);

        request.AddHeader("X-MBX-APIKEY", apikey);

        request.AddQueryParameter("recvWindow", "5000");
        request.AddQueryParameter("timestamp", timestamp);

        request.AddQueryParameter("signature", CreateSignature(request.Parameters, secret));

        response = client.Get(request);
 
        System.Diagnostics.Debug.WriteLine(response.Content);

}

public static string CreateSignature(List<Parameter> parameters, string secret)
{
        var signature = "";
        if (parameters.Count > 0)
        {
            foreach (var item in parameters)
            {
                if (item.Name != "X-MBX-APIKEY")
                    signature += $"{item.Name}={item.Value}&";
            }
            signature = signature.Substring(0, signature.Length - 1);
        }


        byte[] keyBytes = Encoding.UTF8.GetBytes(secret);
        byte[] queryStringBytes = Encoding.UTF8.GetBytes(signature);
        HMACSHA256 hmacsha256 = new HMACSHA256(keyBytes);

        byte[] bytes = hmacsha256.ComputeHash(queryStringBytes);

        return BitConverter.ToString(bytes).Replace("-", "").ToLower();
  }

public class ttime
  {
        public string serverTime { get; set; }
  }