How to retrieve Facebook post (preview) meta data for linking to external site, such as LinkedIn or Google Plus?
NickName:ryd3r Ask DateTime:2015-06-11T07:51:19

How to retrieve Facebook post (preview) meta data for linking to external site, such as LinkedIn or Google Plus?

I'm trying to link to individual Facebook posts and display the post page's meta data, including an image preview, but looking at the FB post page's source, it has none of the usual meta nor open graph tags.

I found that LinkedIn and Google Plus are able to retrieve meta data when you post a link to a facebook post. See below for a LinkedIn example.

How are they doing it!?

enter image description here

Copyright Notice：Content Author:「ryd3r」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/30769269/how-to-retrieve-facebook-post-preview-meta-data-for-linking-to-external-site

Answers
folizc 2015-06-16T07:13:14

I'm not insider of LinkedIn or Google so not sure of it. But there're two ways they can do it:\n\n\nAnalysing the structure of facebook post and fetch the picture/title/content of post from url.\nFetch post id of the post (fbid), and use graph api to query the details of the post from facebook.\n",

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