Receive ngrok url about docker-ngrok HOT 5 CLOSED

Oh there it is, just slipped while reading. :-)
curl $(docker port www_ngrok 4040)/api/tunnels

from docker-ngrok.

And if you want to extract directly the URL from the JSON, you can use this script:

curl -s $(docker port www_ngrok 4040)/api/tunnels/command_line | grep -o '"public_url": *"[^"]*"' | grep -o '"[^"]*"$' | sed -e 's/^"//' -e 's/"$//'

from docker-ngrok.

Parsing JSON with jq is much more readable.
I use it in a docker environment and need the url in the webserver container.
The webserver container has an entrypoint.sh, looking like this:

echo Get ngrok tunnel url...
export WEBHOOK_BASE_URL=$(bash /scripts/ngrok_url.sh)

echo Start webserver...
apache2-foreground

In ngrok_url.sh I have to wait that I can retrieve the url:

function echoUrl {
  ngrok_tunnels=$(curl -s http://ngrok:4040/api/tunnels)
  index=$(echo $ngrok_tunnels | jq '.tunnels | map(.proto == "https") | index(true)')
  echo $ngrok_tunnels | jq -r ".tunnels[$index].public_url"
}

n=0
until [ "$n" -ge 5 ]
do
  echoUrl && break
  n=$((n+1))
  sleep 5
done

from docker-ngrok.

I agree with you, jq is more readable.

However, jq is not always available by default on all distros. This is why I've used grep and sed instead. Telling my team to install an additional package was not an option for me.

from docker-ngrok.