Options for posting via the API to a Facebook Group
Facebook Groups requires the Facebook Ayrshare App to be enabled for the Group. Please see here for instructions:
JSON for a basic post with a link and image to a Facebook Group:
"post": "The best group ever #best https://www.facebook.com",
Facebook will automatically preview the link in the post unless there is an image or video included. In the above example the image will show. Removing the image will cause the link preview to show.
Please see the Facebook Page options for additional functionality.