the code work ok in spot,but not work in futures

API Futures API
1 
long unixTime = (long)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalMilliseconds;
string na_zakod = "recvWindow=60000&timestamp=" + unixTime;
var input = na_zakod;
var secretKey = project.Variables["sec"].Value;
byte[] secretkeyBytes = Encoding.UTF8.GetBytes(secretKey);
byte[] inputBytes = Encoding.UTF8.GetBytes(input);
var hmac = new HMACSHA256(secretkeyBytes);
byte[] hashValue = hmac.ComputeHash(inputBytes);  
string signature = BitConverter.ToString(hashValue).Replace("-", "").ToLower();

var result = ZennoPoster.HttpGet(
	url: "https://api.binance.com/api/v3/account?signature="+ signature+"&"+na_zakod,
    //content: na_zakod,
			   // contentPostingType: "application/x-www-form-urlencoded",
			    proxy: project.GetProxy(),
			    Encoding: "UTF8",
			    respType: InterfacesLibrary.Enums.Http.ResponceType.BodyOnly,
			    Timeout: 30000,
			    Cookies: "",
			    UserAgent: "curl/7.38.0",
			    UseRedirect: false,
			    MaxRedirectCount: 0,
			    AdditionalHeaders:    new String[] {
			        "User-Agent:Mozilla/4.0 (compatible; PHP",
			        "X-MBX-APIKEY:"+project.Variables["key"].Value+"",
			        "Content-Type:application/x-www-form-urlencoded"
			    }
			);

work ok in spot,but i change the url to futures it not work,

long unixTime = (long)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalMilliseconds;
string na_zakod = "recvWindow=60000&timestamp=" + unixTime;
var input = na_zakod;
var secretKey = project.Variables["sec"].Value;
byte[] secretkeyBytes = Encoding.UTF8.GetBytes(secretKey);
byte[] inputBytes = Encoding.UTF8.GetBytes(input);
var hmac = new HMACSHA256(secretkeyBytes);
byte[] hashValue = hmac.ComputeHash(inputBytes);  
string signature = BitConverter.ToString(hashValue).Replace("-", "").ToLower();

var result = ZennoPoster.HttpGet(
	url: "https://fapi.binance.com/fapi/v2/account?signature="+ signature+"&"+na_zakod,
    //content: na_zakod,
			   // contentPostingType: "application/x-www-form-urlencoded",
			    proxy: "",
			    Encoding: "UTF8",
			    respType: InterfacesLibrary.Enums.Http.ResponceType.BodyOnly,
			    Timeout: 30000,
			    Cookies: "",
			    UserAgent: "curl/7.38.0",
			    UseRedirect: false,
			    MaxRedirectCount: 0,
			    AdditionalHeaders:    new String[] {
			        "User-Agent:Mozilla/4.0 (compatible; PHP",
			        "X-MBX-APIKEY:"+project.Variables["key"].Value+"",
			        "Content-Type:application/x-www-form-urlencoded"
			    }
			);

Can someone help me see what’s wrong?

2

Can you show the response? The response will give the hints on why it didn’t work.

3

THX!
It’s solved. Just put the signature parameter at the end.