getid.py

import json
import logging
import os
import sys

from telegram import Update
from telegram.ext import CallbackContext, Filters, MessageHandler, Updater

logging.basicConfig(
    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
    level=logging.INFO,
)

"""
---Token/Key Management Starts---
This part will check for the config.json file which holds the Telegram and and Channel ID and will
also give a user friendly message if they are invalid. New file is created if not present in the
project directory.
"""
configError = (
    'Please open config.json file located in the project directory and relace the value'
    '"0" of Telegram-Bot-Token with the Token you recieved from botfather.'
)
if 'config.json' not in os.listdir():
    with open('config.json', mode='w') as f:
        json.dump({'Telegram-Bot-Token': 0, 'Channel-Id': 0}, f)
        logging.info(configError)
        sys.exit(0)
else:
    with open('config.json', mode='r') as f:
        config = json.loads(f.read())
        if config['Telegram-Bot-Token']:
            logging.info('Token Present, continuing...')
            TelegramBotToken = config['Telegram-Bot-Token']
        else:
            logging.info(configError)
            sys.exit(0)
"""
---Token/Key Management Ends---
"""

"""
This mini bot (`getid.py`) is to get the Channel ID of the Channel where JustJobsBot will eventually
post Job Details. Make sure to add JustJobsBot to the Channel as Administrator, run this mini bot
and send any text message to the Channel. The ID will be logged in the terminal afterwards. Update
`config.py` with this Channel ID.
"""
updater = Updater(token=TelegramBotToken)
dispatcher = updater.dispatcher


def getID(update: Update, context: CallbackContext):
    logging.info((
        f'Channel ID = {update.effective_chat["id"]}. Please replace this Channel ID with the '
        'value of "Channel-ID" in config.json.'
    ))
    sys.exit(0)


dispatcher.add_handler(MessageHandler(Filters.text, getID))
updater.start_polling()