To know if the existing post is deleted in facebook via API

Question

I am using koala gem and facebook api to fetch the recent 10 posts from facebook pages fo which I am admin. I store this in my local db and do some data crunching on it. Is there some way to know if a post fetched in my db has been deleted? I am currently using Koala gem for fetching the posts using the API:

page_graph = Koala::Facebook::GraphAPI.new(page.page_access_token)
post_infos = page_graph.get_connections("me", "posts")

Answer 1

The only way you can do this is to periodically check each post on Facebook using the API. If the API call to the post_id returns an error, then you know the post has been deleted, so you can safely delete it from your database too.