Flask app with Telegram bot

# pip install flask-cors python-telegram-bot
# - chat with @BotFather, create new bot ==> fill the TOKEN. (https://core.telegram.org/bots#6-botfather)
# - Chat with new bot something ==> access to https://api.telegram.org/bot<TOKEN>/getUpdates ==> Copy the chat ID then      #   fill the argument below.
# - Profits??

import json

from flask import Flask, request
from flask_cors import CORS

import telegram

bot = telegram.Bot(token='TOKEN')

app = Flask(__name__)
CORS(app)

@app.route("/")
def hello_world():
    bot.send_message(chat_id='CHAT_ID', text=json.dumps(request.args))
    return "Hello, cross-origin-world!"


if __name__ == '__main__':
    app.run(host='0.0.0.0', port=12333)