Get Bytecent Price in $USD, C#

Get Bytecent Price in $USD

//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Net;
using System.IO;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {             
            // display
            Console.WriteLine(String.Format("BTC/USD\t\t${0}",getBitcoinInUSD()));
            Console.WriteLine(String.Format("BTC/BYC\t\t{0}",getBytecentInBTC()));
            Console.WriteLine(String.Format("BYC/USD\t\t${0}",getBytecentInUSD(4)));
        }
       
        private static decimal getBitcoinInUSD()
        {
            // get BTC
            string btc = getWebResponse("https://www.bitstamp.net/api/ticker/");
            
            int pos1 = btc.IndexOf("last", 0);
            int pos2 = btc.IndexOf(":", pos1);
            int pos3 = btc.IndexOf(",", pos2);
            
            return Convert.ToDecimal(btc.Substring(pos2+3, pos3-pos2-4));
        }
    
        private static decimal getBytecentInBTC()
        {
            // get BYC
            string byc = getWebResponse("https://bittrex.com/api/v1.1/public/getticker?market=BTC-BYC");
            
            int pos1 = byc.IndexOf("Last", 0);
            int pos2 = byc.IndexOf(":", pos1);
            int pos3 = byc.IndexOf("}", pos2);
            
            return Convert.ToDecimal(byc.Substring(pos2+1, pos3-pos2-1));
        }
    
        private static decimal getBytecentInUSD(int decimalPlaces)
        {
            decimal bycRate = getBytecentInBTC();
            decimal btcRate = getBitcoinInUSD();
            
            return Math.Round(btcRate*bycRate, decimalPlaces);
        }
            
        public static string getWebResponse(string url)
        {
            // create request..
            HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(url);

// use GET method
            webRequest.Method = "GET";

// POST!
            HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse();

// read response into StreamReader
            Stream responseStream = webResponse.GetResponseStream();
            StreamReader _responseStream = new StreamReader(responseStream);

// get raw result
            return _responseStream.ReadToEnd();
        }
    }
}


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