json, ajax, xhr, http on node.js

http.js

var http = require("http");

http.get(weatherApi, function(res) {
    var body = '';

    // get chunks of data and add it to body
    res.on('data', function(chunk){
        body += chunk;
    });

    // on end
    res.on('end', function(){

        // parse the body
        var weatherResponse = JSON.parse(body);

        console.log(weatherResponse);

    });

}).on('error', function(e) {
    console.log("Got error: " + e.message);
});