Get ngrok public url in api with node.

ngrok_url_api.js

//Execute with: node ngrok_url_api.js

const request = require("request");

const url = "http://127.0.0.1:4040/api/tunnels";

request.get(url, function(error, res, body) {
    get_url = JSON.parse(body);
    console.log(get_url.tunnels[0].public_url);
});