facebook share popup (maybe iframe popup) on the site

Question

what is the best way to have the facebook share button on the website. I want to share the link and add small image to this. Do I need any key or sth like that? I hope that not

Answer 1

I think that the best way to make a request dialog

The Request Dialog sends a Request from one user (the sender) to one or more users (the recipients).

https://developers.facebook.com/docs/reference/dialogs/requests/

Answer 2

You can use tfe following link:

https://www.facebook.com/dialog/feed?
  app_id=458358780877780&
  link=https://developers.facebook.com/docs/reference/dialogs/&
  picture=http://fbrell.com/f8.jpg&
  name=Facebook%20Dialogs&
  caption=Reference%20Documentation&
  description=Using%20Dialogs%20to%20interact%20with%20users.&
  redirect_uri=https://mighty-lowlands-6381.herokuapp.com/

You just have to customize the caption,description,link, and so on to suite your needs.