app.js

var getLeaderboard = function() {
  var query = "users/"+settings.uid+"/scoreboard?oauth_token="+settings.oauth+"&v=20150724&m=swarm";

  var xhr = new XMLHttpRequest();
  xhr.open('GET', config.base + query, true);
  
  xhr.onload = function() {
    if (xhr.readyState == 4) {
      if (xhr.status == 200) {
        var response = JSON.parse(xhr.responseText);
        var items = {};
        var scores = response.response.currentWeek.scores;
        var pos = 100;
        items.size = scores.length;
        for (var i = 0; i < scores.length; i++) {
          items[pos] = {};
          items[pos].id = scores[i].user.id;
          items[pos].name = scores[i].user.firstName+" "+scores[i].user.lastName;
          items[pos].coins = scores[i].score+" coins";
          pos++;
        }
        var appmsg = {'leaderboard': items};
        console.log(JSON.stringify(appmsg));
        Pebble.sendAppMessage(appmsg);
      } else {
        console.log(JSON.stringify(xhr.response));
      }
    }
  };
  
  xhr.send(null);
};