Setup Twitter login button

1. Visit twitter developers page https://dev.twitter.com/
2. In menu near your icon – select my applications                                           
3. Create new app                                                                                    
4. Fill in all the fields and click save                                                                                                                       

   Your Website and Callback url

   http://opencart.dreamvention.com/201/d_social_login/

5. Then select your newly created app and go to tab Settings
6. Check the checkbox “Allow this application to be used to Sign in with Twitter" and click Save                                                                          
7. Then go to tab API Keys and click "Generate my access token
8. Fill in the App Key and App Secret in the Social Login settings tab for Twitter