Widget are missing

Follow button is the only button / widget with a WordPress widget wrapper. All have shortcodes.

but where did i find those shortcodes. Can you please send me the url where the list of shortcode is available?

https://dev.twitter.com/web/wordpress

Browse to the feature of interest on the sidebar menu:

• embedded Tweet
• embedded video
• Tweet button
• Follow button
• Ad conversion tracking

Only for PHP 5.4 or higher version