/media/sda-magnetic/david/Dokumente-14/linux/mypython/facebook004.py

from flask import Flask, request
import requests
 
app = Flask(__name__)
 
# This is page access token that you get from facebook developer console.
PAGE_ACCESS_TOKEN = 'EAALw3jXt8OEBAHwuiF8y1nr7rHXfZCKZBxwb9lU7KZAwtpCJ1Rs5HokuXRSbtobqwdZByWQNYlkTLZBzjqopskJrsTvtlbSgULseZBPM2EUar83Ayv6EbOmm2nqGc1BRI3JKQX6g7xjdAp1ADJw9kqoxSS50bnwZCX3MyXgw4mhH7pDoN2TYyjKHBUpez1kgZCXNgPnyLYp7YAZDZD'
# This is API key for facebook messenger.
API = "https://graph.facebook.com/v13.0/me/messages?1626418787807782="+PAGE_ACCESS_TOKEN

@app.route("/", methods=['GET'])
def fbverify():
    if request.args.get("hub.mode") == "subscribe" and request.args.get("hub.challenge"):
        if not request.args.get("hub.verify_token")== "<Your Verify token>":
            return "Verification token missmatch", 403
        return request.args['hub.challenge'], 200
    return "Hello world", 200