Twitter Authentication in MVC5

• Step 1  Register yourself as a App Developer in Twitter by opening https://dev.twitter.com/apps from your Browser and sign in with your Credentials...

• Step 2  Now Click on Create a new Application as shown Below...

       

•  Step 3  Enter all the Necessary Details you can provide a call back URl as www.dummy.com and click on Create your Twitter Application
• Step 4 Copy the consumer key and consumer Secret Values as shown below

        

• Step 1 Create an Asp.net  MVC Application 
• Step 2 After Creation you will find Startup.Auth.cs class file in App_Start Folder 

Using the code

• Step 3 Open Startup.Auth class file Here you can watch  UseTwitterAuthentication code is Commented..

• Step 4 uncomment the Code and Provide the Consumer key and consumer Secret key which we had copied Earlier

using Owin;

namespace MVCStudents
{
    public partial class Startup
    {
        // For more information on configuring authentication, please visit http://go.microsoft.com/fwlink/?LinkId=301864
        public void ConfigureAuth(IAppBuilder app)
        {
            // Enable the application to use a cookie to store information for the signed in user
            // and to use a cookie to temporarily store information about a user logging in with a third party login provider
            app.UseSignInCookies();

            // Uncomment the following lines to enable logging in with third party login providers
            //app.UseMicrosoftAccountAuthentication(
            //    clientId: "",
            //    clientSecret: "");

            app.UseTwitterAuthentication(
               consumerKey: "",
               consumerSecret: "");

            //app.UseFacebookAuthentication(
            //   appId: "",
            //   appSecret: "");

            //app.UseGoogleAuthentication();
        }
    }
}

• Step 5 Debug the Application and click on Login we will find the Twitter Button as shown below

•  Step 6 Click on the Twitter Button and you will be ask to Authorize app ..Click on Authorize app

•  Step 7 it will Redirect to our Application  as shown 

  

•     Step 8  Now register to Associate with Twitter Account 

   

Conclusion

Reference