Get external IP from icanhazip.com; uses Bluebird promise
npm install icanhazipUses icanhazip.com to get your external IP address.
``javascript
var icanhazip = require('icanhazip');
icanhazip.IPv4().then(function(myIP) {
console.log(myIP);
}).catch(function(e) {
console.error(e.message);
});
``