ngrok.sh

#!/usr/bin/env bash

local_port=0 # use 0 for default ports (80 for http, 443 for https)
hostname=plotter.eu.ngrok.io

quit() {
    >&2 echo 'Shutting down ngrok.sh...'
    pkill -P $$ # kill all child processes
    exit 0
}
trap quit EXIT

if [[ $1 == 'http' ]]; then
    # connect to local HTTP server (NOT HTTPS)
    [[ $local_port == 0 ]] && local_port=80
    [[ $2 == 'noui' ]] && flag='--log=stdout'
    ngrok http http://localhost:$local_port --hostname=$hostname $flag
else
    [[ $local_port == 0 ]] && local_port=443
    [[ $1 == 'noui' ]] && flag='--log=stdout'
    ngrok http https://localhost:$local_port --hostname=$hostname $flag
fi