Know how your meetup.com group is growing through events!

meetup-insights.py

# Know how your meetup.com group is growing through events! 
# Get your API token here: https://secure.meetup.com/pt-BR/meetup_api/key/
# You don't need to install nothing! It's 100% pure python
# python meetup-insights.py <org-name> <your api token>
from urllib import request,parse
from functools import reduce
import datetime
import sys
import json

group = sys.argv[1]
key = sys.argv[2]

def make_url(path, additional):
    additional["key"] = key
    additional = parse.urlencode(additional)
    return f"https://api.meetup.com/{path}?{additional}"

def get_group():
    r = request.urlopen(make_url(group, {"only": "created,members,name,link"}))
    return json.loads(r.read())

def get_events():
    add = {
        "only": "id,name,rsvp_limit,status,local_date,yes_rsvp_count",
        "status": "past,upcoming"
    }
    r = request.urlopen(make_url(f"{group}/events", add))
    return json.loads(r.read())

def get_members(offset = 0):
    add = {
        "group_urlname": group,
        "offset": offset,
        "only": "joined"
    }
    r = request.urlopen(make_url("2/members", add))
    data = json.loads(r.read())
    results = data["results"]

    if len(results) > 0:
        results = results + get_members(offset + 1)

    return results

def main():
    group_data = get_group()
    members = get_members()
    events = get_events()
    convert = lambda t: datetime.datetime.strptime(t, "%Y-%m-%d")
    deal_milliseconds = lambda t: datetime.datetime.utcfromtimestamp(0) + datetime.timedelta(milliseconds=t)

    print("Group: %s\n" % (group_data["name"]))

    for e in events:
        local_date = convert(e["local_date"])
        date_compare = lambda m: deal_milliseconds(m["joined"]) < local_date
        until_now = len(list(filter(date_compare, members)))

        print("Event: %s" % (e["name"]))
        print("Date: %s" % (e["local_date"]))
        print("Total members until event date: %s\n" % (until_now))

if __name__ == "__main__":
    main()