JSON crawler and formatter.

    const Repaik = require('repaik);
    let repaik = new Repaik();
    let res = repaik.request('http://www.reddit.com/r/javascript/.json');
    res.then((result) => {
        result.getData() // return json
    });

You need to order articles from reddit by domain and then group by domain to get statistic like domain, articles count, score sum:

    const Repaik = require('repaik');
    const _ = require('lodash');

    let reformatDataInputData = function(data){
        return _.map(data.data.children, function (article) {
            return article.data;
        });
    };

    let reformatDataOrderedData = function(data) {
        return _.map(data, function (el) {
            return {
                id: el.id,
                title: el.title,
                'utc creation date': el.created_utc,
                score: el.score,
                domain: el.domain
            };
        });
    };

    let reformatDataGroupedData = function(data) {
        return _.map(data, function (el, key) {
            let scoreSumm = _.reduce(el, function(sum, curEl) {
                return sum + curEl.score;
            }, 0);
            return {
                domain: key,
                'articles count': el.length,
                'score summ': scoreSumm
            };
        });
    };

    let repaik = new Repaik();
    let res = repaik.request('http://www.reddit.com/r/javascript/.json');

    res.then((result) => {
            result
                    .reformateData(reformatDataInputData)
                    .orderBy('domain')
                    .groupBy('domain')
                    .reformateData(reformatDataGroupedData)
                    .getData(); // get all you need
        });