import json

import requests

import datetime

import csv

import argparse

import os

import time

from datetime import datetime

import pandas as pd

from requests.packages.urllib3.exceptions import InsecureRequestWarning

result = []

URL = 'https://api.groupme.com/v3'

TOKEN = ''

params = {}

counter = 141055961931457390#FirstMessage

#1572013198

requests.packages.urllib3.disable_warnings(InsecureRequestWarning)

while int(counter) < 157196703975514846: #LastMessage

params = {'after_id' : counter, 'limit' : 100}

uu = URL + '/groups/' + 'agroupnumber' + '/messages' + '?token=atoken'

response = requests.get(uu, params=params, verify=False)

json_data = json.loads(response.text)

lastint = len(json_data['response']['messages'])

counter = json_data['response']['messages'][lastint-1]['id']

#time.sleep(10)

result.append(json_data)

print(counter)

# counter = msgs.content.response.messages[msgs.json().response.messages.length-1].id

# if you encounter a "year is out of range" error the timestamp

# may be in milliseconds, try `ts /= 1000` in that case

with open("merged_file.json", "w", encoding="utf8") as outfile:

json.dump(result, outfile)