DadBot.py

import random
from flask import Flask, request
from pymessenger2.bot import Bot
from config import ACCESS_TOKEN, VERIFY_TOKEN

app = Flask(__name__)
bot = Bot(ACCESS_TOKEN)

@app.route('/', methods=['GET', 'POST'])
def receive_message():
    if request.method == 'GET':
        token_sent = request.args.get("hub.verify_token")
        return verify_fb_token(token_sent)

    else:
        output = request.get_json()
        for event in output['entry']:
            messaging = event['messaging']
            for message in messaging:
                if message.get('message'):
                    recipient_id = message['sender']['id']
                    if message['message'].get('text'):
                        response_sent_text = get_message()
                        send_message(recipient_id, response_sent_text)
                    if message['message'].get('attachments'):
                        response_sent_nontext = get_message()
                        send_message(recipient_id, response_sent_nontext)
    return "Message Processed"

def verify_fb_token(token_sent):
    if token_sent == VERIFY_TOKEN:
        return request.args.get("hub.challenge")
    return 'Invalid verification token'

def get_message():
    x = "person"
    response = "Hi" + x + ", I'm DadBot"
    return response

def send_message(recipient_id, response):
    bot.send_text_message(recipient_id, response)
    return "success"

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