pip3 install gappy

git clone https://github.com/GapAPy/Gappy/
cd Gappy
python3 setup.py install

import gappy
from flask import Flask
from flask import request

TOKEN = '<your token>'

bot = gappy.Bot(TOKEN)
app = Flask(__name__)


@app.route('/', methods=['POST'])
def parse_request():
    msg = request.form
    content_type = msg['type']
    chat_id = msg['chat_id']
    data = msg['data']
    bot.send_text(chat_id, data)
    return 'OK'



if __name__ == '__main__':
    app.run()