Introduction:
In
this article I will explain how to create app in twitter and implement twitter login authentication for website in asp.net.
Description:
In previous post I explained article how to integrate facebook login authentication for website in asp.net. Now I will explain how to allow users to login with twitter accounts in website using asp.net.
In previous post I explained article how to integrate facebook login authentication for website in asp.net. Now I will explain how to allow users to login with twitter accounts in website using asp.net.
Before
implement twitter login authentication we need to get consumerKey and consumerSecret
key
from twitter for that we need to create application in twitter by using this
link https://dev.twitter.com/apps/new once open that will display window like this
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Once app page opened enter Application Name, Description,
website (Ex: http://aspdotnet-suresh.com)
and callback url details and click create new application button and here one
more thing we need to remember is twitter won’t support for
localhost sites (ex: http://localhost/Default.aspx) because of that we need to
give hosted domain site url.
If you want to test this with your local application no
worries check this post how host website in IIS with custom URL .Once our app created in twitter that would
be like as shown below image here we can change logo of our application
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Now create new application using visual
studio and write following code aspx page
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1">
<title>Twitter Login Authentication for Website in asp.net</title>
</head>
<body>
<form id="form1"
runat="server">
<asp:ImageButton ID="imgTwitter"
runat="server"
ImageUrl="~/TwitterSigning.png"
onclick="imgTwitter_Click" />
<table id="tbleTwitInfo"
runat="server"
border="1"
cellpadding="4"
cellspacing="0"
visible="false">
<tr>
<td colspan="2"><b>Twitter User Profile</b></td>
</tr>
<tr>
<td><b>UserName:</b></td>
<td><%=username%></td>
</tr>
<tr>
<td><b>Full Name:</b></td>
<td><%=name%></td>
</tr>
<tr>
<td><b>Profile Image:</b></td>
<td><img src="<%=profileImage%>" /></td>
</tr>
<tr>
<td><b>Twitter Followers:</b></td>
<td><%=followersCount%></td>
</tr>
<tr>
<td><b>Number Of Tweets:</b></td>
<td><%=noOfTweets%></td>
</tr>
<tr>
<td><b>Recent Tweet:</b></td>
<td><%=recentTweet%></td>
</tr>
</table>
</form>
</body>
</html>
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Now
in code behind add following namespaces
C# Code
C# Code
using System;
using System.Web.UI;
using System.Xml;
using oAuthExample;
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After
completion of adding namespaces write following code in code behind
string url = "";
string xml = "";
public string name
= "";
public string
username = "";
public string
profileImage = "";
public string
followersCount = "";
public string
noOfTweets = "";
public string
recentTweet = "";
protected void
Page_Load(object sender, EventArgs e)
{
GetUserDetailsFromTwitter();
}
private void
GetUserDetailsFromTwitter()
{
if(Request["oauth_token"]!=null & Request["oauth_verifier"]!=null)
{
imgTwitter.Visible = false;
tbleTwitInfo.Visible = true;
var oAuth = new oAuthTwitter();
//Get the access token and
secret.
oAuth.AccessTokenGet(Request["oauth_token"], Request["oauth_verifier"]);
if (oAuth.TokenSecret.Length > 0)
{
//We now have the credentials, so
make a call to the Twitter API.
url = "http://twitter.com/account/verify_credentials.xml";
xml = oAuth.oAuthWebRequest(oAuthTwitter.Method.GET,
url, String.Empty);
XmlDocument xmldoc=new XmlDocument();
xmldoc.LoadXml(xml);
XmlNodeList xmlList = xmldoc.SelectNodes("/user");
foreach (XmlNode
node in xmlList)
{
name = node["name"].InnerText;
username = node["screen_name"].InnerText;
profileImage = node["profile_image_url"].InnerText;
followersCount = node["followers_count"].InnerText;
noOfTweets = node["statuses_count"].InnerText;
recentTweet = node["status"]["text"].InnerText;
}
}
}
}
protected void
imgTwitter_Click(object sender, ImageClickEventArgs e)
{
var oAuth = new oAuthTwitter();
if (Request["oauth_token"]
== null)
{
//Redirect the user to Twitter
for authorization.
//Using oauth_callback for local
testing.
oAuth.CallBackUrl = "http://aspdotnet-suresh.com/TwitterAuthentication.aspx";
Response.Redirect(oAuth.AuthorizationLinkGet());
}
else
{
GetUserDetailsFromTwitter();
}
}
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If you observe above code I used oAuthTwitter class file you can get this class file from downloadable code.
Now get consumerKey and consumerSecret key from twitter and add it in web.config file like this
<appSettings>
<add key="consumerKey" value="Gyew474of7tpEBqnpDw" />
<add key="consumerSecret" value="ytgklq3b8lkxgPShCWeawqzrYpUa1bgsaeGRwW" />
</appSettings>
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Demo
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Download
sample code attached
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