Facebook User ID fetcher

fb-id.py

#!/usr/bin/python

import requests
import re

url = 'https://www.facebook.com/zuck'
idre = re.compile('"entity_id":"([0-9]+)"')
page = requests.get(url)
print idre.findall(page.content)

# One-liner
# python -c 'import requests, re; print re.findall("\"entity_id\":\"([0-9]+)\"", requests.get("https://facebook.com/zuck").content)[0] + "\n"'

I'd suggest using the lite version of fb, i.e. https://mbasic.facebook.com/<USERNAME> (or https://touch.facebook.com/<USERNAME>, which is easier to parse afterwards) as the returned page is much smaller. Of course in that case entity_id won't do anymore, so one might resort to looking for owner_id= or the more robust photo.php?fbid=99999999999999999&id=1111111111 (where 111.... is the id we're looking for).

P.S.
The lite sites support the https://<site_type>.facebook.com/app_scoped_user_id/9876543210 endpoint.

This will not work for private accounts

Is there a way to verify a set of numbers in a file to see who has a Facebook account?
Using python