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FullCalendar: events that are not initially displayed from a function call (AJAX)

I configured my FullCalendar to pull its events from an AJAX request, but they do not appear on the calendar the first time the page loads.

$(document).ready(function() {

    sh1client = new Array();
    sh2client = new Array();

    $('#sh1_cal').fullCalendar({

         height: 1000,
         minTime:'9:00am',
         maxTime:'5:00pm',
         editable: false,

         events: function(start, end, callback) {

            $.ajax({
                type: 'GET',
                url: 'http://localhost:8080/getEvents',
                dataType: 'json',
                success: function(reply) {

                    console.log(reply.first);
                    callback(reply.first);

                }
            });
        }
    });


    $("#sh1_cal").fullCalendar('addEventSource', sh1client);   // these are the clientside arrays

});

And on the server

app.get('/getEvents', function(req, res){

    console.log('Server: passing events...');

    var arrays = {first: sh1, second: sh2}
    var pack = JSON.stringify(arrays)

    res.writeHead(200, {'Access-Control-Allow-Origin' : '*', 'Content-Type': 'application/json'});
    res.end(pack);

});

Is there a reason these events will not load initially? Everything seems to be going well, but it seems like the callback is not working or something like that.

EDIT: Here is another approach I tried

events: { 

            url: 'http://localhost:8080/getEvents',
            type: 'GET',

            error: function() {
                alert('there was an error while fetching events!');
            },

            success: function(reply) {
                console.log(reply);
                //callback(reply.first);
            },

            color: 'yellow',   // a non-ajax option
            textColor: 'black' // a non-ajax option

         }

EDIT: The JavaScript console shows this as POSTed to the page as soon as it loads (this is the first object in the array:

[Object]
allDay: "false"
end: "1392129000"
id: "phil@google.com"
room: "Sh1"
start: "1392127200"
title: "Phil - Google"
__proto__: Object
length: 1
__proto__: Array[0]
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1 answer

Instead of using your own ajax call, have you tried using fullcalendars?

http://arshaw.com/fullcalendar/docs/event_data/events_json_feed/

Fullcalendar dataType JSON false.

doc:

$('#calendar').fullCalendar({

    events: {
        url: 'http://localhost:8080/getEvents',
        type: 'GET',
        error: function() {
            alert('there was an error while fetching events!');
        },
        success: function(reply) {
            console.log(reply.first);
            callback(reply.first);
        },
        color: 'yellow',   // a non-ajax option
        textColor: 'black' // a non-ajax option
    }

});

, JSON , ajax

     events: [
     {
            end: 1392129000,
            id: "phil@google.com",
            room: "Sh1",
            start: 1392127200,
            title: "Phil - Google"
      }]

:

$('#myCalendar').fullCalendar({
...
   eventSources : [{
      url: 'myUrl',
      type: 'GET',
   },
   success: function(replyObject) {
      var results = [];
      var reply= replyObject.Results[0];
      for(var index in reply) {
         results.push(reply[index]);
      }
      return results;
    }
    }]
...
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