Fetching data from 3 different type of json in Angular js

Question

I have 3 different json files chart1.json, chart2.json, chart3.json. All the jsons have different data structure and one of the key that is required from the jsons is "timestamps","fieldname" and "statename" respectively and need to be put into a varibale called "category" which will be viewed on html for 3 diffrent charts.Like 3 diffrent charts will have 3 categories "timestamp",fieldname" and "statename". I need to do this with one chartcontroller.

Is making 3 diffrent calls to these json files is the only way??

Share your code please ?

Vineet
– Vineet

2015-08-20 05:40:20 +00:00
Commented Aug 20, 2015 at 5:40 — Vineet
– Vineet, Commented Aug 20, 2015 at 5:40

CanK · Accepted Answer · 2015-08-20 07:05:15Z

2

SuperVeetz wouldnt it be nicer to put those calls in a resolve function of the view?

resolve

resolve: {
            'init':function (initService) {
                return initService.init();
            }

where inititService holds the requests:

module.factory('initService', function($q, $http) {
            var request = $q.defer();
            return {
                init: function(option) {
                        chart1 = $http.get('path/to/json/');
                        chart2 = $http.get('path/to/json/');
                        chart3 = $http.get('path/to/json/');
                        $q.all([chart1, chart2, chart3])
                            .then(function(responses) {
                                    request.resolve(responses);
                                }
                        }

}

ctrl:

module.controller('ChartCtrl', ['$scope', 'init', function($scope, init) {
    $scope.someCharts = init;
   }]);

answered Aug 20, 2015 at 7:05

CanK

888 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Priya Ahuja Over a year ago

I was always confused when to use $resolve or $http. can you provide me any reference where I can understand the real diffrence

CanK Over a year ago

the resolve function will be called before your view is rendered/controller runs. so if you want to work with the data you should load them in your resolve function. So that your controller will only start if the data is fetched. inside your controller the data from your resolve function is available with the name you provided in the resolve object. here it is "init".

SuperVeetz · Accepted Answer · 2015-08-20 05:46:11Z

0

  var model = {};

  angular.module('yourApp', [])

  .run(function($http) {

    $http.get("chart1.json").success(function(data) {
      model.chart1 = data;
    });

    $http.get("chart2.json").success(function(data) {
      model.chart2 = data;
    });

    $http.get("chart3.json").success(function(data) {
      model.chart3 = data;
    });

  })

  .controller('ChartCtrl', ['$scope', '$http', function($scope, $http) {

    $scope.someCharts = model;

  }]);

pretty sure that 3 http responses is the only way, inless you have a server and database that can parse the JSON for you or somethin

answered Aug 20, 2015 at 5:46

SuperVeetz

2,1483 gold badges25 silver badges38 bronze badges

Comments

sombrerogalaxy · Accepted Answer · 2015-08-20 08:52:34Z

0

If you want to make one call, you would need to create a function on the server which combines (re-structures) your three JSON files into one as soon as you request it with a specific api call.

$http.get('/api/getThreeInOne').then(function(data){ return data;}

answered Aug 20, 2015 at 8:52

sombrerogalaxy

4164 silver badges7 bronze badges

Collectives™ on Stack Overflow

Fetching data from 3 different type of json in Angular js

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related