CODEWITHSUNDEEP
javascriptangularjsjsonangular-http
Ricky
Ricky

Reputation: 3072

AngularJS: Unable to Send $Http JSON Response to View

Trying to get JSON data from an API and show the result in a view using AngularJS. I'm able to get the data correctly but unable to show it in the view. When i try to access the object's data the result is always undefined.

Here's what i'm doing...

API Service:

myApp.service('apiService', ['$http', function($http)
{
    var api = "http://domain.xpto/api/";

    var self = this;
    this.result;

    var apiService =
    {
        getSection: function(id)
        {
            var url = api + "section/" + id;

            return $http.get(url);
        }
    }

    return apiService;
}]);

Controller:

myApp.controller('mainController', ['$scope', '$routeParams', 'apiService', function($scope, $routeParams, apiService)
{
    apiService.getSection(1).then(function(response)
    {
        $scope.$applyAsync(function ()
        {
            var data = response.data; //json data as expected
            var section = data.section; //undefined?!
            var images = data.images; //undefined!?

            $scope.title = section.title; //undefined!?         
        });
    });

}]);

JSON Result: enter image description here

UPDATE: Simplified my apiService based on @Salih's and @elclanrs's suggestion.

Why am i unable to access the inner objects of the json (f.e, data.section.title)?

UPDATE #2: I'm finally able to access the data. It seems i needed an extra data level to get access to the section object of my json array (response.data.data.section). Honesty i don't understand why. I've accessed the API using jquery and it was strait forward...

Upvotes: 0

Views: 398

Answers (3)

Raphael Parreira
Raphael Parreira

Reputation: 468

Edit: I made this plunker to help you! http://embed.plnkr.co/Yiz9TvVR4Wcf3dLKz0H9/

If I were you, I would use the service function to update the own service value. You already created this.result, you can just update its value.

Your Service:

myApp.service('apiService', ['$http', function($http)
{
    var api = "http://domain.xpto/api/";

    var self = this;
    this.result = {};

    this.getSection = function(id){
        var url = api + "section/" + id;

        $http.get(url).then(function(res){
            self.result = res;
        });
    }
}]);

I wouldn't use a Promise for this case. You can access the Service's var into your Controller and View.

Your controller:

myApp.controller('mainController', ['$scope', '$routeParams', 'apiService', 
function($scope, $routeParams, apiService)
{
    $scope.apiSer = apiService;

    $scope.apiSer.getSection(1);

}]);

In your View:

<pre>{{ apiSer.result }}</pre>

And now you'll see your parameter get updated in real time.

Upvotes: 1

Akhil Nambiar
Akhil Nambiar

Reputation: 315

You might need to use angular.forEach method to parse your inner values of the JSON . Take a look at this example Accesing nested JSON with AngularJS

Upvotes: 1

Salih Şenol &#199;akarcı
Salih Şenol &#199;akarcı

Reputation: 2330

In your getSection function just write and return the following

return $http.get(url);

Upvotes: 1

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