I’m using facebook graph API to update/edit the text of a specific post on my page
import facebook
page_token = '...'
fb = facebook.GraphAPI(access_token = page_token, version="2.12")
page_id = '...'
post_id = '...'
fb.put_object(parent_object = page_id + '_' + post_id,
connection_name = '',
message = 'new text')
now I’m trying to add a local image (stored in the same folder of the python script) to this post but I don’t understand how to properly do it (notice that I don’t have to create a new post and attach a photo (for which we simply use put_photo function) but I have to attach a photo to an existing post).
What I tried so far
fb.put_object(parent_object=page_id+'_'+post_id, connection_name='', message='new text', object_attachment = open('out.png', 'rb'))
and
fb.put_object(parent_object=page_id+'_'+post_id, connection_name='', message='new text', source = open('out.png', 'rb'))
but none of them works (there are no errors when running the code, but the image is not added to the post).
Hints?
p.s. these are the permission of my app
pages_show_list
pages_read_engagement
pages_read_user_content
pages_manage_posts
pages_manage_engagement