giotto/site/eurostat.js

GiottoJS - Visualization Library

import * as d3 from 'giotto';

const baseUrl = 'http://ec.europa.eu/eurostat/wdds/rest/data/v2.1/json/en/';

export default function (expr, opts) {
    var self = this,
        url = baseUrl + expr + '?',
        clean = opts.clean;

    delete opts.clean;

    d3.quant.forEach(opts, function (value, key) {
        if (key !== 'eurostat') {
            if (!d3.quant.isArray(value)) value = [value];
            value.forEach(function (v) {
                if (url[url.length - 1] != '?') url += '&';
                url += key + '=' + v;
            });
        }
    });

    d3.request.json(url, function (error, data) {
        if (error)
            throw new Error(error);
        var serie = d3.quant.jsonStat(data, {crossfilter: true, clean: clean});

        self.ready(serie.data(), expr, opts);
    });
}