Latest Twitter Integration in windows phone 8

restRequest.AddParameter("status", txtTweetContent.Text);

restClient.BeginRequest(restRequest, new RestCallback(PostTweetRequestCallback));

}

private void PostTweetRequestCallback(RestRequest request, RestResponse response, object obj)

{

Deployment.Current.Dispatcher.BeginInvoke(() =>

{

if (response.StatusCode == HttpStatusCode.OK)

{

MessageBox.Show("TWEET_POSTED_SUCCESSFULLY");

}

else if (response.StatusCode == HttpStatusCode.Forbidden)

{

MessageBox.Show("TWEET_POST_ERR_UPDATE_LIMIT");

}

else

{

MessageBox.Show("WEET_POST_ERR_FAILED");

}

txtTweetContent.Text = "";

});

//var requestTokenQuery = OAuthUtil.GetRequestTokenQuery();

//requestTokenQuery.RequestAsync(AppSettings.RequestTokenUri, null);

//requestTokenQuery.QueryResponse += new EventHandler<WebQueryResponseEventArgs>(requestTokenQuery_QueryResponse);

}

void requestTokenQuery_QueryResponse(object sender, WebQueryResponseEventArgs e)

{

try

{

StreamReader reader = new StreamReader(e.Response);

string strResponse = reader.ReadToEnd();

var parameters = MainUtil.GetQueryParameters(strResponse);

OAuthTokenKey = parameters["oauth_token"];

tokenSecret = parameters["oauth_token_secret"];

var authorizeUrl = AppSettings.AuthorizeUri + "?oauth_token=" + OAuthTokenKey;

Dispatcher.BeginInvoke(() =>

{

this.loginBrowserControl.Navigate(new Uri(authorizeUrl, UriKind.RelativeOrAbsolute));

});

}

catch (Exception ex)

{

Dispatcher.BeginInvoke(() =>

{

MessageBox.Show(ex.Message);

});

}

}

private void loginBrowserControl_Navigated(object sender, System.Windows.Navigation.NavigationEventArgs e)

{

this.loginBrowserControl.Visibility = Visibility.Visible;

this.loginBrowserControl.Navigated -= loginBrowserControl_Navigated;

}

private void loginBrowserControl_Navigating(object sender, NavigatingEventArgs e)

{

if (e.Uri.ToString().StartsWith(AppSettings.CallbackUri))

{

var AuthorizeResult = MainUtil.GetQueryParameters(e.Uri.ToString());

var VerifyPin = AuthorizeResult["oauth_verifier"];

this.loginBrowserControl.Visibility = Visibility.Collapsed;

var AccessTokenQuery = OAuthUtil.GetAccessTokenQuery(OAuthTokenKey, tokenSecret, VerifyPin);

AccessTokenQuery.QueryResponse += new EventHandler<WebQueryResponseEventArgs>(AccessTokenQuery_QueryResponse);

AccessTokenQuery.RequestAsync(AppSettings.AccessTokenUri, null);

}

}

void AccessTokenQuery_QueryResponse(object sender, WebQueryResponseEventArgs e)

{

try

{

StreamReader reader = new StreamReader(e.Response);

string strResponse = reader.ReadToEnd();

var parameters = MainUtil.GetQueryParameters(strResponse);

accessToken = parameters["oauth_token"];

accessTokenSecret = parameters["oauth_token_secret"];

userID = parameters["user_id"];

userScreenName = parameters["screen_name"];

MainUtil.SetKeyValue<string>("AccessToken", accessToken);

MainUtil.SetKeyValue<string>("AccessTokenSecret", accessTokenSecret);

MainUtil.SetKeyValue<string>("ScreenName", userScreenName);

userLoggedIn();

}

catch (Exception ex)

{

Dispatcher.BeginInvoke(() =>

{

MessageBox.Show(ex.Message);

});

}

}

}

}

*****************************

Note:Before going to use above code you must be add following classes

using Hammock.Authentication.OAuth;

using Hammock.Web;

using System;

using System.Collections.Generic;

using System.IO.IsolatedStorage;

using System.Linq;

using System.Text;

namespace TwitterPost

{

public class AppSettings

{

// twitter

public static string RequestTokenUri = "https://api.twitter.com/oauth/request_token";

public static string AuthorizeUri = "https://api.twitter.com/oauth/authorize";

public static string AccessTokenUri = "https://api.twitter.com/oauth/access_token";

public static string CallbackUri = "http://www.google.com"; // we've mentioned Google.com as our callback URL.

//#error TODO REGISTER YOUR APP WITH TWITTER TO GET YOUR KEYS AND FILL THEM IN HERE

public static string consumerKey = "";

public static string consumerKeySecret = "";

public static string oAuthVersion = "1.0a";

}

public class MainUtil

{

public static Dictionary<string, string> GetQueryParameters(string response)

{

Dictionary<string, string> nameValueCollection = new Dictionary<string, string>();

string[] items = response.Split('&');

foreach (string item in items)

{

if (item.Contains("="))

{

string[] nameValue = item.Split('=');

if (nameValue[0].Contains("?"))

nameValue[0] = nameValue[0].Replace("?", "");

nameValueCollection.Add(nameValue[0], System.Net.HttpUtility.UrlDecode(nameValue[1]));

}

}

return nameValueCollection;

}

internal static T GetKeyValue<T>(string key)

{

if (IsolatedStorageSettings.ApplicationSettings.Contains(key))

return (T)IsolatedStorageSettings.ApplicationSettings[key];

else

return default(T);

}

internal static void SetKeyValue<T>(string key, T value)

{

if (IsolatedStorageSettings.ApplicationSettings.Contains(key))

IsolatedStorageSettings.ApplicationSettings[key] = value;

else

IsolatedStorageSettings.ApplicationSettings.Add(key, value);

IsolatedStorageSettings.ApplicationSettings.Save();

}

}

public class OAuthUtil

{

internal static OAuthWebQuery GetRequestTokenQuery()

{

var oauth = new OAuthWorkflow

{

ConsumerKey = AppSettings.consumerKey,

ConsumerSecret = AppSettings.consumerKeySecret,

SignatureMethod = OAuthSignatureMethod.HmacSha1,

ParameterHandling = OAuthParameterHandling.HttpAuthorizationHeader,

RequestTokenUrl = AppSettings.RequestTokenUri,

Version = AppSettings.oAuthVersion,

CallbackUrl = AppSettings.CallbackUri

};

var info = oauth.BuildRequestTokenInfo(WebMethod.Get);

var objOAuthWebQuery = new OAuthWebQuery(info, false);

objOAuthWebQuery.HasElevatedPermissions = true;

objOAuthWebQuery.SilverlightUserAgentHeader = "Hammock";

return objOAuthWebQuery;

}

internal static OAuthWebQuery GetAccessTokenQuery(string requestToken, string RequestTokenSecret, string oAuthVerificationPin)

{

var oauth = new OAuthWorkflow

{

AccessTokenUrl = AppSettings.AccessTokenUri,

ConsumerKey = AppSettings.consumerKey,

ConsumerSecret = AppSettings.consumerKeySecret,

ParameterHandling = OAuthParameterHandling.HttpAuthorizationHeader,

SignatureMethod = OAuthSignatureMethod.HmacSha1,

Token = requestToken,

Verifier = oAuthVerificationPin,

Version = AppSettings.oAuthVersion

};

var info = oauth.BuildAccessTokenInfo(WebMethod.Post);

var objOAuthWebQuery = new OAuthWebQuery(info, false);

objOAuthWebQuery.HasElevatedPermissions = true;

objOAuthWebQuery.SilverlightUserAgentHeader = "Hammock";

return objOAuthWebQuery;

}

}

}