bot.py

import json
import requests
from flask import Flask, request

VERIFY_TOKEN = "giphy"

app = Flask(__name__)

@app.route('/', methods=['GET'])
def verify():
    # Once the endpoint is added as a webhook, it must return back
    # the 'hub.challenge' value it receives in the request arguments
    if (request.args.get('hub.verify_token', '') == VERIFY_TOKEN):
        print("Verified")
        return request.args.get('hub.challenge', '')
    else:
        print('wrong verification token')
        return "Error, Verification Failed"

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