According to the documentation the links endpoint takes picture, name, and description as parameters. From https://developers.facebook.com/docs/reference/api/ under the Publishing section
Method Description Arguments
/PROFILE_ID/links Publish a link on the given profile link, message, picture, name, caption, description
However when I try these parameters are ignored. Python example below.
res = requests.post("https://graph.facebook.com/me/links",
data = {'access_token':t.auth_payload,
'message':'testing',
'link':'http://percolate.com',
'picture':'http://i.zdnet.com/blogs/facebook_news_feed.png',
'caption':'this is a caption',
'description':'this is a description',
'name':'this is a name'})
Which results in:
Following up on this issue. The links endpoint becomes more and more useless while the /feed endpoint finally has the features I've needed. /feed used to lose the share action when posting a link. That has since been fixed.
If you have issues with the links endpoint. Switch to /feed and see if it suites your needs.