python - Viber bot 不发送回复消息

Question

我有这个代码

from flask import Flask, request, Response
from viberbot import Api
from viberbot.api import viber_requests
from viberbot.api.bot_configuration import BotConfiguration
from viberbot.api.messages import VideoMessage
from viberbot.api.messages.text_message import TextMessage
import logging

from viberbot.api.viber_requests import ViberConversationStartedRequest, viber_request
from viberbot.api.viber_requests import ViberFailedRequest
from viberbot.api.viber_requests import ViberMessageRequest
from viberbot.api.viber_requests import ViberSubscribedRequest
from viberbot.api.viber_requests import ViberUnsubscribedRequest

app = Flask(__name__)
# сюда нужно вставить инфу со своего бота
viber = Api(BotConfiguration(
    name='PythonSampleBot',
    avatar='exemplepathtojpg',
    auth_token=TOKEN
))
viber.set_webhook('where i find webgook?')

@app.route('/', methods=['POST'])
def incoming():
    logging.Logger.debug("received request. post data: {0}".format(request.get_data()))
    # every viber message is signed, you can verify the signature using this method
    if not viber.verify_signature(request.get_data(), request.headers.get('X-Viber-Content-Signature')):
        return Response(status=403)
    
    # this library supplies a simple way to receive a request object
    viber_request = viber.parse_request(request.get_data())

    if isinstance(viber_request, ViberMessageRequest):
        
        message = viber_request.message
        # lets echo back
        viber.send_messages(viber_request.sender.id, [
            message
        ])
    elif isinstance(viber_request, ViberSubscribedRequest):
        
        viber.send_messages(viber_request.get_user.id, [
            TextMessage(text="thanks for subscribing!")
        ])
    elif isinstance(viber_request, ViberFailedRequest):
        logging.Logger.warn("client failed receiving message. failure: {0}".format(viber_request))

    return Response(status=200)

if __name__ == "__main__":
    app.run(host='0.0.0.0', port=443, debug=True)

它是 python 上的一个简单的 viber bot（echo bot），但它不起作用，请告诉我为什么？另外，我不知道如何正确使用 webhook，我已经将部署上传到 heroku，我需要从 heroku 或哪里获取 webhook？

标签： python