JSON deserialization with angular.fromJson()

Question

Despite from the AngularJS documentation for angular.fromJson being spectacular, I still don't know how to use it to its fullest potential. Originally I have just been directly assigning the JSON data response from an HTTP request to a $scope variable. I've recently noticed that Angular has a built-in fromJson() function, which seems like something I'd want to use. If I use it, is it safer and can I access data elements easier?

This is how I've been doing it:

$http({
    method: 'GET',
    url: 'https://www.reddit.com/r/2007scape.json'
}).then(function success(response) {
    var mainPost = response; // assigning JSON data here
    return mainPost;
}, function error(response) {
    console.log("No response");
});

This is how I could be doing it:

$http({
    method: 'GET',
    url: 'https://www.reddit.com/r/2007scape.json'
}).then(function success(response) {
    var json = angular.fromJson(response); // assigning JSON data here
    return json;
}, function error(response) {
    console.log("No response");
});

response should already be parsed to array or object ..not json string — charlietfl
– charlietfl, Commented Oct 14, 2015 at 19:37

Michel · Accepted Answer · 2015-10-14 19:43:30Z

2

It is pointless to convert the response to json as angular does it for you. From angular documentation of $http:

Angular provides the following default transformations:

Request transformations ($httpProvider.defaults.transformRequest and $http.defaults.transformRequest):

If the data property of the request configuration object contains an object, serialize it into JSON format.

Response transformations ($httpProvider.defaults.transformResponse and $http.defaults.transformResponse):

If XSRF prefix is detected, strip it (see Security Considerations section below). If JSON response is detected, deserialize it using a JSON parser.

edited Oct 14, 2015 at 19:43

answered Oct 14, 2015 at 19:37

Michel

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