loop through months and insert maps to database

monthsRangeArray.js

_.each(dateRange(), function (month) {

      var beatmaps = osu.getBeatmapsRaw({
        since: month
      }, Meteor.bindEnvironment(function (err, res) {
        if (err) throw new Meteor.Error(err);
        var mapsJson = JSON.stringify(res);
        var maps = JSON.parse(mapsJson);
        for (var map in maps) {
          var objectToUpdate = {
            "beatmapset_id": maps[map].beatmapset_id,
            "beatmap_id": maps[map].beatmap_id,
            "approved": maps[map].approved,
            "total_length": maps[map].total_length,
            "hit_length": maps[map].hit_length,
            "version": maps[map].version,
            "file_md5": maps[map].file_md5,
            "diff_size": maps[map].diff_size,
            "diff_overall": maps[map].diff_overall,
            "diff_approach": maps[map].diff_approach,
            "diff_drain": maps[map].diff_drain,
            "mode": maps[map].mode,
            "approved_date": maps[map].approved_date,
            "last_update": maps[map].last_update,
            "artist": maps[map].artist,
            "title": maps[map].title,
            "creator": maps[map].creator,
            "bpm": maps[map].bpm,
            "source": maps[map].source,
            "genre_id": maps[map].genre_id,
            "language_id": maps[map].language_id,
            "favourite_count": maps[map].favourite_count,
            "playcount": maps[map].playcount,
            "passcount": maps[map].passcount,
            "max_combo": maps[map].max_combo,
            "difficultyrating": maps[map].difficultyrating
          };
          Test.upsert({
            beatmap_id: maps[map].beatmap_id
          }, {
            $set: objectToUpdate
          }, {
            multi: true,
            upsert: true
          }, function (err, res) {
            if (err) throw new Meteor.Error(err);
          });
        }
      }));

    });
    console.log("DONE");
  }
  
  function dateRange() {
    var resultList = [];
    var months = [];
    var date = new Date("August 07, 2015");
    var endDate = new Date();
    var monthNameList = ["January", "February", "March", "April", "May", "Jun", "Jul", "August", "September", "October", "November", "December"];
  
    while (date <= endDate) {
      var stringDate = monthNameList[date.getMonth()] + " " + date.getFullYear();
      resultList.push(stringDate);
      date.setMonth(date.getMonth() + 1);
    }
  
    _.each(resultList, function (month) {
      var currentMonth = new Date(month);
      months.push(currentMonth);
    });
    console.log(months);
  
    return months;
}