Aconex_API_call_for_binary.cs

using System;
using System.Net;
using System.IO;
using System.Text;
namespace AconexSampleSheet
{
    class Program
    {
        static void Main(string[] args)
        {
            // Sample request values.
            string documentId = args[0];
            string filename = args[1] + args[2];
            string uri = "https://uk1.aconex.co.uk/api/projects/268441385/register/" + documentId;
            string userName = "abcd";
            string password = "abcd";
            string method = "GET";
            string response = "";
            bool error = false;
            bool aconexError = false;
            string errorMessage = "";
            // XML response from Aconex stored in parameter “response”
            // If aconexError flag is raised, response will contain Aconex error message
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
            string cred = Convert.ToBase64String(Encoding.UTF8.GetBytes(userName + ":" + password));
            request.Headers.Set("X-Application-Key", "abcd");
            request.Headers.Set(HttpRequestHeader.Authorization, "Basic "+ cred);
            request.Method = method;
            request.AutomaticDecompression = DecompressionMethods.GZip|DecompressionMethods.Deflate;
            try
            {
                FileStream writeStream = new FileStream(filename,FileMode.Create, FileAccess.Write);
                readWriteStream(request.GetResponse().GetResponseStream(), writeStream);
                writeStream.Close();
            }
            catch (WebException e)
            {
                using (WebResponse webResponse = e.Response)
                {
                    try
                    {
                        using (Stream data = webResponse.GetResponseStream())
                        {
                            response = new
                            StreamReader(data).ReadToEnd();
                            aconexError = true;
                        }
                    }
                    catch (Exception ex)
                    {
                        error = true;
                        errorMessage ="Please check your internet connection.\n"+ e.Message + "\n" + ex.Message;
                    }
                }
            }
            // Write result
            if (aconexError)
                Console.WriteLine(response);
            if (error)
                Console.WriteLine(errorMessage);
            else
                Console.WriteLine("File downloaded");
        }
        // Read and write response data in pieces
        static void readWriteStream(Stream readStream, Stream writeStream)
        {
        int Length = 256;
            Byte[] buffer = new Byte[Length];
            int bytesRead = readStream.Read(buffer, 0, Length);
            while (bytesRead > 0)
            {
                writeStream.Write(buffer, 0, bytesRead);
                try
                {
                    bytesRead = readStream.Read(buffer, 0, Length);
                }
                catch (IOException ex)
                {
                    if (bytesRead < 256)
                        bytesRead = 0;
                    else
                        throw new IOException(ex.Message);
                }
            }
            readStream.Close();
            writeStream.Close();
        }
    }
}