Get the public ip address of an AWS Lambda

lambdaip.js

var http = require('http');

exports.handler = function( event, context ){
    http.get({'host': 'api.ipify.org', 'port': 80, 'path': '/'}, function(resp) {
        resp.on('data', function(ip) {
            context.succeed(ip.toString());
        });
        resp.on('error', context.fail);
    });
};