问题
I am trying to figure out as to how I can successfully retrieve my Bitcoin balance from Bitstamp using their API. I have spent the entire day on Stack Overflow and on youtube to try and figure this out, as there are a lot of small bits that could be molded together. I think that I'm pretty close to succeeding, but there is one small part that I can't seem to figure out.
How do I exactly execute this request? I should probably add the API authentication somewhere and then sign it using the HMACSHA256 method. But in what order? How do I go about it? This is the API documentation -> https://www.bitstamp.net/api/
And here is my entire code so far:
using RestSharp;
using System;
using System.Security.Cryptography;
using System.Text;
namespace ConsoleApp5
{
class Program
{
private readonly String _clientId = "xxx";
private readonly String _apiKey = "xxx";
private readonly String _apiSecret = "xxx";
static void Main(string[] args)
{
Console.ReadLine();
}
public void AddApiAuthentication(RestRequest restRequest)
{
var nonce = DateTime.Now.Ticks;
var signature = GetSignature(nonce, _apiKey, _apiSecret, _clientId);
restRequest.AddParameter("key", _apiKey);
restRequest.AddParameter("signature", signature);
restRequest.AddParameter("nonce", nonce);
}
private string GetSignature(long nonce, string key, string secret, string clientId)
{
string msg = string.Format("{0}{1}{2}", nonce,
clientId,
key);
return ByteArrayToString(SignHMACSHA256(secret, StringToByteArray(msg))).ToUpper();
}
public static byte[] SignHMACSHA256(String key, byte[] data)
{
HMACSHA256 hashMaker = new HMACSHA256(Encoding.ASCII.GetBytes(key));
return hashMaker.ComputeHash(data);
}
public static byte[] StringToByteArray(string str)
{
return System.Text.Encoding.ASCII.GetBytes(str);
}
public static string ByteArrayToString(byte[] hash)
{
return BitConverter.ToString(hash).Replace("-", "").ToLower();
}
}
}
It's really just the executing part that I'm missing. I should've covered everything else according to the API documentation. Some thoughts would be great.
Thanks in advance, Nexigen.
EDIT::
I worked a little more on it and I now know how to execute it
using RestSharp;
using System;
using System.Security.Cryptography;
using System.Text;
namespace ConsoleApp5
{
class Program
{
private readonly String _clientId = "xxx";
private readonly String _apiKey = "xxx";
private readonly String _apiSecret = "xxx";
static void Main(string[] args)
{
Program program = new Program();
var _request = new RestRequest();
_request.Resource = "api/v2/balance";
program.AddApiAuthentication(_request);
Console.ReadLine();
}
public void AddApiAuthentication(RestRequest restRequest)
{
var nonce = DateTime.Now.Ticks;
var signature = GetSignature(nonce, _apiKey, _apiSecret, _clientId);
restRequest.AddParameter("X-Auth", _apiKey);
restRequest.AddParameter("X-Auth-Signature", signature);
restRequest.AddParameter("X-Auth-Nonce", nonce);
var client = new RestClient();
client.BaseUrl = new Uri("http://www.bitstamp.net/");
IRestResponse response = client.Execute(restRequest);
Console.WriteLine(response.Content);
}
private string GetSignature(long nonce, string key, string secret, string clientId)
{
string msg = string.Format("{0}{1}{2}", nonce,
clientId,
key);
return ByteArrayToString(SignHMACSHA256(secret, StringToByteArray(msg))).ToUpper();
}
public static byte[] SignHMACSHA256(String key, byte[] data)
{
HMACSHA256 hashMaker = new HMACSHA256(Encoding.ASCII.GetBytes(key));
return hashMaker.ComputeHash(data);
}
public static byte[] StringToByteArray(string str)
{
return System.Text.Encoding.ASCII.GetBytes(str);
}
public static string ByteArrayToString(byte[] hash)
{
return BitConverter.ToString(hash).Replace("-", "").ToLower();
}
}
}
However, when I now try to make the request to http://www.bitstamp.net/api/balance, It's telling me that it's missing my api key, signature and nonce parameters. And when I use http://www.bitstamp.net/api/v2/balance it's telling me that it's a POST endpoint only. What am I missing now?
回答1:
There are a couple of problems here:
- you need to create a
RestClientand aRestRequestand pass the request to the client after populating its headers - the header names you are using don't match those quoted in the bitstamp api documentation and the examples:
回答2:
I pretty much found it out myself, by using the following code:
static void Main()
{
Program program = new Program();
RestRequest request = new RestRequest("/api/v2/balance/", Method.POST);
program.AddApiAuthentication(request);
Console.ReadLine();
}
public void AddApiAuthentication(RestRequest restRequest)
{
var nonce = DateTime.Now.Ticks;
var signature = GetSignature(nonce, _apiKey, _apiSecret, _clientId);
long time = DateTime.UtcNow.Ticks / TimeSpan.TicksPerMillisecond;
string version = "v2";
string contentType = "application/x-www-form-urlencoded";
restRequest.AddParameter("X-Auth", _apiKey);
restRequest.AddParameter("X-Auth-Signature", signature);
restRequest.AddParameter("X-Auth-Nonce", nonce);
restRequest.AddParameter("X-Auth-Timestamp", time);
restRequest.AddParameter("X-Auth-Version", version);
restRequest.AddParameter("Content-Type", contentType);
RestClient client = new RestClient
{
BaseUrl = new Uri("https://www.bitstamp.net/")
};
IRestResponse response = client.Execute(restRequest);
Console.WriteLine(response.Content);
}
You first make a new RestRequest and give it the POST method, then (in my case) you start the AddApiAuthentication and give it the request that you just made as a parameter. Then inside AddApiAuthentication you create a new RestClient, give it an URI and execute the call. Then you catch the response.
My question is answered, but I already have a new question based on an error I get after that. I'll be making a new question.
来源：https://stackoverflow.com/questions/62228010/how-do-i-given-the-following-methods-send-the-request-to-the-bitstamp-api-usin