AWS ip range parser

aws.js

var https = require('https'),
    regions = {
        "ap-northeast-1": "Tokyo, JP",
        "ap-southeast-1": "SG",
        "ap-southeast-2": "Sydney, AU",
        "eu-central-1": "Frankfurt, DE",
        "eu-west-1": "IE",
        "sa-east-1": "Sao Paulo, BR",
        "us-east-1": "VA, US",
        "us-west-1": "CA, US",
        "us-west-2": "OR, UA",
        "GLOBAL": "Global",
        "us-gov-west-1": "GovCloud west",
        "cn-north-1": "Bejing, CN"
    };

var parse_ips = function(ips) {
    ips.prefixes.forEach(function(prefix) {
        var region = regions[prefix.region];
        if (!region) {
            console.log('Missing region definition for', prefix.region)
            region = prefix.region;
        }
        console.log(prefix.ip_prefix + ',' + region);
    });
};

https.get("https://ip-ranges.amazonaws.com/ip-ranges.json", function(res) {
    if (res.statusCode != 200) {
        console.error('Invalid response');
        return;
    }

    var payload = '';
    res.on('data', function(chunk) {
        payload += chunk;
    }).on('end', function(e) {
        parse_ips(JSON.parse(payload));
    });
}).on('error', function(e) {
    console.log("Got error: " + e.message);
});