text-classifier.js

var https = require('https');

var data = __REPLACE_JSON__;
var counter = data.length;
var result = {data: {}, error: {}};
data.forEach(function (keyword) {

    var options = {
        host: 'trends.google.com',
        port: 443,
        path: '/trends/api/autocomplete/' + encodeURIComponent(keyword) + '?hl=en-EN'
    };

    https.get(options, function (resp) {
        var body = '';
        resp.on('data', function (d) {
            body += d;
        });

        resp.on('end', function () {
            counter -= 1;

            var category_value = JSON.parse(body.substring(6)).default.topics;
            result.data[keyword] = (category_value && category_value.length > 0) ? category_value[0] : null;

            if (counter == 0) {
                console.log(JSON.stringify(result));
            }
        });
    }).on("error", function (e) {
        counter -= 1;
        result.data[keyword] = "Error:" + e.message;
        if (counter == 0) {
            console.log(JSON.stringify(result));
        }
    });
});