{"tickets":[{"url":"https://company.zendesk.com/api/v2/tickets/1.json","id":1,"external_id":null,"via":{"channel":"web","source":{"from":{},"to":{},"rel":null}},"created_at":"2012-10-01T16:06:33Z","updated_at":"2012-10-05T19:21:55Z","type":"incident","subject":"This is a sample ticket requested and submitted by you","description":"This is the first comment. Feel free to delete this sample ticket.","priority":"high","status":"closed","recipient":null,"requester_id":270249903,"submitter_id":270249903,"assignee_id":270249903,"organization_id":22242373,"group_id":20363013,"collaborator_ids":[],"forum_topic_id":null,"problem_id":null,"has_incidents":false,"due_at":null,"tags":["sample","zendesk"],"fields":[{"id":21717236,"value":"10/4/2012"}],"custom_fields":[{"id":21717236,"value":"10/4/2012"}],"satisfaction_rating":null},{"url":"https://company.zendesk.com/api/v2/tickets/2.json","id":2,"external_id":null,"via":{"channel":"email","source":{"from":{"address":"noreply@zendesk.com","name":"Zendesk"},"to":{"address":"support@company.zendesk.com","name":"Binary Stream Helpdesk"},"rel":null}},"created_at":"2012-10-01T16:33:58Z","updated_at":"2012-10-05T17:09:37Z","type":null,"subject":"Tudor Hofnar, here is the test ticket you requested","description":"        Hello! This is a Zendesk ticket. We are going to go through the basic support ticket operation in Zendesk.nn        If you are in your email reading this, please click on the link in the header that starts with Ticket #.nn        If you are in your Zendesk reading this, you will see the ticket number, the customer who sent this ticket in, and drop down menus that allow you to set things like status and priority. You'll also notice a blank text box below this comment. That is for you to respond. Let's do that:nn        1. Write: "Thanks for this information, please tell me more."n        2. Change the drop-down field labeled Status to "Pending"nn        If you follow these instructions, you'll get an email response back from us shortly.  You can also always see ticket updates by going back into your unsolved ticket view (click view in the top menu bar).n","priority":null,"status":"closed","recipient":null,"requester_id":270263553,"submitter_id":270263553,"assignee_id":270249903,"organization_id":null,"group_id":20363013,"collaborator_ids":[],"forum_topic_id":null,"problem_id":null,"has_incidents":false,"due_at":null,"tags":[],"fields":[{"id":21717236,"value":"10/4/2012"}],"custom_fields":[{"id":21717236,"value":"10/4/2012"}],"satisfaction_rating":null},{"url":"https://company.zendesk.com/api/v2/tickets/3.json","id":3,"external_id":null,"via":{"channel":"email","source":{"from":{"address":"tudor@binarystream.com","name":"Tudor Hofnar"},"to":{"address":"support@company.zendesk.com","name":"Binary Stream Helpdesk"},"rel":null}},"created_at":"2012-10-01T17:08:37Z","updated_at":"2012-10-05T18:15:01Z","type":null,"subject":"test","description":"testnnTudor 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etc....","priority":"normal","status":"closed","recipient":null,"requester_id":271853958,"submitter_id":271853958,"assignee_id":270249903,"organization_id":22284363,"group_id":20363013,"collaborator_ids":[],"forum_topic_id":null,"problem_id":null,"has_incidents":false,"due_at":null,"tags":["2_2_2","4","ared","end_user_1","var_2"],"fields":[{"id":21704983,"value":"1"},{"id":21708732,"value":"tried this"},{"id":21708742,"value":"1"},{"id":21713331,"value":"10/2/2012"},{"id":21717086,"value":"ared"},{"id":21717236,"value":"10/4/2012"},{"id":21717357,"value":"2_2_2"}],"custom_fields":[{"id":21704983,"value":"1"},{"id":21708732,"value":"tried 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testn","priority":"normal","status":"open","recipient":null,"requester_id":270249903,"submitter_id":270249903,"assignee_id":270249903,"organization_id":22242373,"group_id":20363013,"collaborator_ids":[],"forum_topic_id":null,"problem_id":null,"has_incidents":false,"due_at":null,"tags":["2010","psm"],"fields":[{"id":21704983,"value":"0"},{"id":21708732,"value":null},{"id":21708742,"value":"1"},{"id":21713331,"value":"10/9/2012"},{"id":21717086,"value":"psm"},{"id":21717236,"value":"10/31/2012"},{"id":21717357,"value":"2010"},{"id":21728942,"value":"Var 1"},{"id":21732321,"value":"End User 2"}],"custom_fields":[{"id":21704983,"value":"0"},{"id":21708732,"value":null},{"id":21708742,"value":"1"},{"id":21713331,"value":"10/9/2012"},{"id":21717086,"value":"psm"},{"id":21717236,"value":"10/31/2012"},{"id":21717357,"value":"2010"},{"id":21728942,"value":"Var 1"},{"id":21732321,"value":"End User 2"}],"satisfaction_rating":null}],"next_page":null,"previous_page":null,"count":6}

(function() {

  return {
    // Here we define AJAX calls
    requests: {
      fetchTickets: function() {
        return {
          url: '/api/v2/tickets.json',
          type: 'GET'
        };
      }
    },
    // Here we define events such as a user clicking on something
    events: {
      'app.activated': 'requestTickets',

      'fetchTickets.always': function(data) {
        this.countEndUserTickets((data || {}).tickets);
      }
    },
    // Below this point, you're free to define your own functions used by the app
    requestTickets: function() {
      this.ajax('fetchTickets');
    },

    countEndUserTickets: function(tickets) {
      var endUser = this.ticket().customField("End-User"); //this will get the end-user of the current ticket that is open in Zendesk
      var ticketCounter = 0;

      //this is where I have no idea how to access the 'tickets' array or whatever it is
      for (var i = 0; i <= tickets.length; i++) {
        if (tickets[i].customField("End-User") == endUser){
          ticketCounter = ticketCounter + 1;
        }
      }

      alert(endUser);

      this.switchTo('list', {
        ticketCounter: this.ticketCounter
      });
    }
  };
}());

ticket.fields.filter(function(field) {
    return field.id == 21732321;
})[0].value;

function countTickets(user) {
    var count = 0;
    response.tickets.forEach(function(ticket) {
        var filteredFields = ticket.fields.filter(function(field) {
            return field.id == 21732321;
        });
        if (filteredFields.length > 0 && filteredFields[0].value == user) {
            count++;
        }
    });
    return count;
}

var json = '{ "url":"https://test.zendesk.com/api/v2/tickets/6.json", "id":6, "external_id":null, "via":{ "channel":"web", "source":{ "from":{}, "to":{}, "rel":null } }, "created_at":"2012-10-02T21:14:59Z", "updated_at":"2012-10-09T18:22:04Z", "type":"incident", "subject":"Test Ticket", "description":"this is a test ticket", "priority":"normal", "status":"closed", "recipient":null, "requester_id":271853958, "submitter_id":271853958, "assignee_id":270249903, "organization_id":22284363, "group_id":20363013, "collaborator_ids":[], "forum_topic_id":null, "problem_id":null, "has_incidents":false, "due_at":null, "tags":["2_2_2","arcb","end_user_1","var_2"], "fields":[ {"id":21704983,"value":"1"}, {"id":21708732,"value":"tried this"}, {"id":21708742,"value":"1"}, {"id":21713331,"value":"10/2/2012"}, {"id":21717086,"value":"arcb"}, {"id":21717236,"value":"10/2/2012"}, {"id":21717357,"value":""}, {"id":21728942,"value":null}, {"id":21732321,"value":"Test End-User"}], "custom_fields":[{"id":21704983,"value":"1"}, {"id":21708732,"value":"tried this"}, {"id":21708742,"value":"1"}, {"id":21713331,"value":"10/2/2012"}, {"id":21717086,"value":"arcb"}, {"id":21717236,"value":"10/2/2012"}, {"id":21717357,"value":""}, {"id":21728942,"value":null}, {"id":21732321,"value":"Test End-User"}], "satisfaction_rating":null }';

var obj = JSON.parse(json);
$('body').append('<div>Tags value: ' + obj.tags + '</div><br>');
var len = obj.custom_fields.length;

for(n = 0; n < len; n++)
{
    $('body').append('<div>Custom field value: ' + obj.custom_fields[n].value + '</div>');
}

$.getJSON('myfile.json', function(json) {

    // do something with json here
});

$(document).ready(function () {
    "use strict";
    $.getJSON("getJSON.json", function (data) {
        $("#look").on('click', function () {
            var $output = $("#output");
            var index, id = $("#input").val();
            var filtered = data.custom_fields.filter(function (element) {
                return element.id.toString() == id;
            });
            $output.empty();
            for (index in filtered) {
                $output.append("Value: " + filtered[index].value);
            }
            console.log(filtered);
        });
        console.log(data);
    });
});

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
</head>
<body>
    Pleased input a custom field ID:  <input id="input" type="text" value="21732321" />
    <button id="look">Look Up By ID</button>
    <p id="output"></p>
<script type="text/javascript" src="getJSON.js"></script>
</body>
</html>

{
    "url": "https://test.zendesk.com/api/v2/tickets/6.json",
    "id": 6,
    "external_id": null,
    "via": {
        "channel": "web",
        "source": {
            "from": {},
            "to": {},
            "rel": null
        }
    },
    "created_at": "2012-10-02T21:14:59Z",
    "updated_at": "2012-10-09T18:22:04Z",
    "type": "incident",
    "subject": "Test Ticket",
    "description": "this is a test ticket",
    "priority": "normal",
    "status": "closed",
    "recipient": null,
    "requester_id": 271853958,
    "submitter_id": 271853958,
    "assignee_id": 270249903,
    "organization_id": 22284363,
    "group_id": 20363013,
    "collaborator_ids": [],
    "forum_topic_id": null,
    "problem_id": null,
    "has_incidents": false,
    "due_at": null,
    "tags": [
        "2_2_2",
        "arcb",
        "end_user_1",
        "var_2"
    ],
    "fields": [
        {
            "id": 21704983,
            "value": "1"
        },
        {
            "id": 21708732,
            "value": "tried this"
        },
        {
            "id": 21708742,
            "value": "1"
        },
        {
            "id": 21713331,
            "value": "10/2/2012"
        },
        {
            "id": 21717086,
            "value": "arcb"
        },
        {
            "id": 21717236,
            "value": "10/2/2012"
        },
        {
            "id": 21717357,
            "value": ""
        },
        {
            "id": 21728942,
            "value": null
        },
        {
            "id": 21732321,
            "value": "Test End-User"
        }
    ],
    "custom_fields": [
        {
            "id": 21704983,
            "value": "1"
        },
        {
            "id": 21708732,
            "value": "tried this"
        },
        {
            "id": 21708742,
            "value": "1"
        },
        {
            "id": 21713331,
            "value": "10/2/2012"
        },
        {
            "id": 21717086,
            "value": "arcb"
        },
        {
            "id": 21717236,
            "value": "10/2/2012"
        },
        {
            "id": 21717357,
            "value": ""
        },
        {
            "id": 21728942,
            "value": null
        },
        {
            "id": 21732321,
            "value": "Test End-User"
        }
    ],
    "satisfaction_rating": null
}