Populate Content and Featured Image in Wordpress Post edit screen from ajax response

I am stuck again. I am working on Wordpress Post edit screen in which i need to Populate Post Content and Post Featured Image from an Ajax Response.

I tried a lot myself but it didn't worked for Content Editor because Wordpress use tinymce editor as WYSIWYG editor.

and idea how to do this.

I also need to populate image, i am receiving image url from the ajax response and i need to set this images as featured image in Wordpress Post edit screen.

Any help will be appreciated.

via Chebli Mohamed