AngularJS - httpget multiple times for same form

I am making an application. I have a form where the user can type in a product. I get the price with an angularjs service. I inject it in. RateInfoService.

So if I type in "Milk" it will say in the DOM {{rate}} -> $2

But if I fill in chips, it will change offcourse to {{rate}} -> $1.50

But what I want to fill in Milk and after that Chips. So I want it to show in the html page

Milk->$2 & Chips->$1.50.

So it will show both items, the user can keep typing in products and submitting it. (ng-click). I might be able to do that in an array but note that I have a refresh rate. Not sure if that's possible to do with an ng-repeat or even if that is possible.

.controller("MainCtrl", function($scope, $http, $timeout, $ionicPlatform, $cordovaLocalNotification, $ionicPopup, RateInfoService, AlarmService, MonitorService) {
      $scope.refreshRate = 5000;

      $scope.refreshData = function() { 
        RateInfoService.getMarket($scope.alarmingMarket).success(function(data) {
          $scope.rate = data.query.results.rate.Rate;
          $scope.updateTime = data.query.results.rate.Time;
        })
  }



<label class="item item-input">
 <span class="input-label">Product name</span>
 <input type="text" min="3" ng-model="hard" name="text" autofocus required>
</label>

Also some extra info

  $scope.submit = function() { 
  $scope.alarmingMarket = $scope.hard
  console.log($scope.monitors);
};

$scope.alarmingMarket = $scope.hard

I used this so it would only get the market price after the user has filled in & pressed submit.

RateInfoService to get the price: http://pastebin.com/gHfhzMjR

I just found out it's possible to dump multiple objects in the url.

https://query.private%20in%20("Milk","Chips")&format;=json&diagnostics;=true&env;=store%3A%2F%2Fdatatables.org%2Falltableswithkeys&callback;=

How can I do this the best way in angular? i'm new in angularjs (3 weeks)

this is the Json formatted view (Explains the $scope.rate = data.query.results.rate.Rate;)

  "results": {
   "rate": [
    {
     "id": "MILK",
     "Name": "MILK",
     "Rate": "1.1054",
     "Date": "10/26/2015",
     "Time": "9:37pm",
     "Ask": "1.1056",
     "Bid": "1.1052"
    },
    {
     "id": "CHIPS",
     "Name": "CHIPS",
     "Rate": "1.5349",
     "Date": "10/26/2015",
     "Time": "9:37pm",
     "Ask": "1.5352",
     "Bid": "1.5346"

I hope this was enough info. *** Not sure why the styling goes wrong. Sorry for the messy page. Stack overflow gives a good preview of this post, but something goes wrong when I publish it. A lot of the code isn't greyed out