lambda function to test the IP of your lambda as seen by ifconfig.co

index.js

var http = require('http');
exports.handler = function (event, context) {
    http.get('http://ifconfig.co', function (res) {
        var buff = [];
        console.log('Got response: %s', res.statusCode);
        res.on('data', function (chunk) {
            buff.push(chunk);
        });
        res.on('end', function () {
            console.log('Found: %s', buff.join(''));
            context.done();
        });
        res.on('error', function (err) {
            console.error('Got error: %s', e.message);
            context.fail();
        });
    }).on('error', function (e) {
        console.log('Got error: %s', e.message);
        context.fail();
    });
};