getaddrinfo ENOTFOUND with Node.js http.request()

I'm trying to follow the badgekit tutorial here https://github.com/mozilla/badgekit-api/wiki/Using-BadgeKit-API#references

However, the error I'm getting is a node error with my syntax (I think). This is what I have in the file RetrieveBadgeData.js

var http = require("http");
var jws = require('jws');

var claimData = {
    header: { typ: 'JWT', alg: 'HS256' },
    payload: {
        key: 'mastersecret',
        exp: Date.now() + (1000 * 60),
        method: 'GET',
        path: '/systems'
    },
    secret: 'mastersecret'
};
var requestOptions = {
    host: 'http://192.168.1.59:8080',
    path: '/systems',
    method: 'GET',
    headers: { 'Authorization': 'JWT token="' + jws.sign(claimData) + '"' }
};

var apiRequest = http.request(requestOptions, function (apiResult) {
    apiResult.on('data', function (badgeData) {
        //process badgeData

    });
});

If I browse to 192.168.1.59:8080 I get what you're supposed to get back if the node API is running But, when I run node RetrieveBadgeData.js (executing the code above) I get this error.

events.js:72
    throw er; // unhandled 'error' event
          ^
Error: getaddrinfo ENOTFOUND
    at errnoException (dns.js:37:11)
    at Object.onanswer [as oncomplete] (dns.js:124:16)

Any ideas?

Edit I've also tried this, which gives me the same error

var requestOptions = {
    hostname: 'http://192.168.1.59'
    , port: 8080
    , path: '/systems/badgekit/badges'
    , method: 'GET'
    , headers: { 'Authorization': 'JWT token="' + jws.sign(claimData) + '"' }
};