How do you get HUBOT_BASE_URL

[meaz]

It the readme file, it is said that setting HUBOT_BASE_URL is required.
It is said to be the URL of Hubot (ex. http://myhubothost.com:5555/). How do you get this? I mean, I have my bot running, but I have no idea how to get its url (if it even has one!).

I would need some guidelines there!

thanks