First, you'll need to get the access tokens for the get_long_token script
appidandclientsecretcan be retrived from your apps > The relevant app > Settings > General- access token can be generated by going here and clicking the big blue button. You should select the appropriate authorizations such as
pages_read_engagementandpages_show_list
Running the script will give you a long-lived access token. Very cool ! get that token into "config.ini" under fb user
Et voilà !