This is a demo for chat bot on Zalo. Get tutorial at notcuder.com (Vietnamese)
#heroku deploy:
We need config IP is 0.0.0.0. Open your gitbash and use this command:
heroku add:config IP=0.0.0.0
We don't need to config PORT. Heroku will choose a suitable port for heroku system.
The port of out application is 80. You can open a URL like this: https://notcuder-chatbot-demo.herokuapp.com/