I want to write a Python script that reads the names of the Facebook users who wrote a message on my Facebook Page.
I'm using the facebook-sdk Python library. The lines
graph = facebook.GraphAPI(page_access_token)
profile = graph.get_object(profile_id)
posts = graph.get_connections(profile['id'], 'feed')
print(posts['data'][0]['message'])
print(posts['data'][0]['from']['name'])
work fine when I use a short-lived access token retrieved by just copying it from the Graph API explorer.
But when I generate a never-expiring page access token (read here), there is an error in the last line where the Python script wants to retrieve the name. (KeyError: 'from')
So how do i set the right permissions? The access token has user_about_me, user_posts, read_page_mailboxes, manage_pages, publish_pages, public_profile permissions, but it still doesn't work. Maybe I did something wrong setting up the app I created to retrieve a new access token?
Or maybe this isn't a permissions issue after all? (See my previous question.)
You need to specify the fields you want to retrieve manually if you're using v2.4 or higher. Unfortunately this is not documented in the project you're using:
posts = graph.get_connections(profile['id'], 'feed', 'fields=id,message,from')
should work I guess according to https://github.com/pythonforfacebook/facebook-sdk/blob/master/facebook/init.py#L117