Post link to a group by API

How can I use the SAPJam API to post a link to a group and get the same visual format as when I go directly to a group and do it manually. For example, if I  go direct to a group and share a link as an update, I'll get the this result in the latest activity wall:

The only API that I found that creates something similar with that is the /Groups('key')/FeedEntries, but even so it disconsider HTML code in the text and the appearence is not pretty as the one above.

Is there any other option to create something with the same format and appearence as the first option?

Thanks!