.NET DevDefined IPP Platform Disconnect Call

IPP-Platform-Disconnect.cs

using DevDefined.OAuth.Consumer;
using DevDefined.OAuth.Framework;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Runtime.Serialization.Formatters.Binary;
using System.Net;

namespace IPPQbApiConsoleApp
{
    static class SampleCalls
    {

        public static string DisconnectRealm(string consumerKey, string consumerSecret, string accessToken, string accessTokenSecret)
        {
            HttpWebRequest httpWebRequest = WebRequest.Create("https://appcenter.intuit.com/api/v1/Connection/Disconnect") as HttpWebRequest;
            httpWebRequest.Method = "GET";
            httpWebRequest.Headers.Add("Authorization", GetDevDefinedOAuthHeader(httpWebRequest, consumerKey, consumerSecret, accessToken, accessTokenSecret));
            UTF8Encoding encoding = new UTF8Encoding();
            HttpWebResponse httpWebResponse = httpWebRequest.GetResponse() as HttpWebResponse;
            using (Stream data = httpWebResponse.GetResponseStream())
            {
                //return XML response
                return new StreamReader(data).ReadToEnd();
            }
        }

        static string GetDevDefinedOAuthHeader(HttpWebRequest webRequest, string consumerKey, string consumerSecret, string accessToken, string accessTokenSecret)
        {

            OAuthConsumerContext consumerContext = new OAuthConsumerContext
            {
                ConsumerKey = consumerKey,
                ConsumerSecret = consumerSecret,
                SignatureMethod = SignatureMethod.HmacSha1,
                UseHeaderForOAuthParameters = true

            };

            consumerContext.UseHeaderForOAuthParameters = true;

            //URIs not used - we already have Oauth tokens
            OAuthSession oSession = new OAuthSession(consumerContext, "https://www.example.com",
                                    "https://www.example.com",
                                    "https://www.example.com");


            oSession.AccessToken = new TokenBase
            {
                Token = accessToken,
                ConsumerKey = consumerKey,
                TokenSecret = accessTokenSecret
            };

            IConsumerRequest consumerRequest = oSession.Request();
            consumerRequest = ConsumerRequestExtensions.ForMethod(consumerRequest, webRequest.Method);
            consumerRequest = ConsumerRequestExtensions.ForUri(consumerRequest, webRequest.RequestUri);
            consumerRequest = consumerRequest.SignWithToken();
            return consumerRequest.Context.GenerateOAuthParametersForHeader();
        }

    }
}