Using the telegram bot api for retrieve your ip address, every time it has changed, being able to know your external ip address through a simple telegram chat (useful when you are out of pc/home if you have a dynamic ip)

apis used here

telegram bot api

httpbin api

to get your external ip address

node httpbin

how to use

1.setup

you need a telegram bot api token (which can be get with /newbot command
    to @BotFather)
after that, just run

    node setup

2.start

and every time you need your bot to be running (to reply messages)
run

    node start