$resource transformResponse not working

Question

Got a simplified $resource example here (adapted from Angular site):

angular.module('project', ['mongolab']);

function ListCtrl($scope, Project) {
  $scope.projects = Project.test();
}

angular.module('mongolab', ['ngResource']).
factory('Project', function ($resource) {
  var url, dfParams, actions;

  url = 'https://api.mongolab.com/api/1/databases' + '/angularjs/collections/projects/:id';
  dfParams = {
    apiKey: '4f847ad3e4b08a2eed5f3b54'
  };

  actions = {
    test: {
      method: 'GET',
      isArray: true,
      transformResponse: function (response) {
        // line is never getting called
        console.log('transforming');
        return response;
      }
  };

  var Project = $resource(url, dfParams, actions);
  return Project;
});

The question is that the line console.log('transforming') is never getting called. Why is that? Everything else works fine.

Live fiddle here.

score 10 · Accepted Answer · answered Mar 17 '13 at 00:15

10

This functionality is only available in the 1.1.2 or later versions of AngularJs. It is not available in the 1.1.1 or earlier versions of AngularJs.

answered Mar 17 '13 at 00:15

rgaskill

2,067
1
14
11

score 2 · Answer 2 · answered Mar 16 '13 at 23:03

2

Response transformation callback is not exposed in $resource service. It lives inside the underlying $http service.

So you have two choices:

Use "low-level" $http instead of $resource abstraction,
Create some kind of wrapper around your resource, which would transform the response the way you want.

answered Mar 16 '13 at 23:03

Stewie

60,366
20
146
113

I thought that too (not exposed in `$resource`). But then I looked at `$resource`'s code and it's documented in the [source code](https://github.com/angular/angular.js/blob/master/src/ngResource/resource.js#L69-L74). Also, reading through the code, you see it extends the `httpConfig` and [passes to underlying `$http`](https://github.com/angular/angular.js/blob/master/src/ngResource/resource.js#L437-L447). And it seems to be intentional, as they [wrote a test case](https://github.com/angular/angular.js/blob/master/test/ngResource/resourceSpec.js#L686-L705) for it. – Caio Cunha Mar 16 '13 at 23:05
1

You were looking at unstable master branch, which isn't yet released. – Stewie Mar 17 '13 at 08:51
Yes, I got it by @rgaskill answer's. Thanks. – Caio Cunha Mar 17 '13 at 12:45

score 1 · Answer 3 · answered Oct 14 '14 at 06:34

I have the same issue,and I use AngularJS 1.2.26.
I have defined a interceptor that contains a transformResponse of $http level like:

return {
  'request': function (config) {
      config.defaults.transformResponse = function(data){
          //some has been done
      };
      return config;
},

when I DELETE the code above, my transformResponse in $resource worked!
In order to solve this problem,I defined my transformResponse in $resource like:

return $resource(pathConfig.serverURL + ':demoId',
    {
        demoId: "@id"
    },
    {
        hello: {
            method: "GET",
            url: serverDomain + ":demoId",
            transformResponse: addTransformResponses(
                [
                    function (data, getHeaders) {
                        //doing hello's OWN interceptors
                    }
                ])
        }
    });

and addTransformResponses contains common interceptor like:

addTransformResponses: function (addTrans) {
    return [this.parseResponseJson, this.parseResponseArray]
        .concat(addTrans);
},

//parse JSON
parseResponseJson: function (data, getHeaders) {
    try {
        return angular.fromJson(data);
    } catch (e) {
        console && console.error("return data is not a JSON!");
        return data;
    }
},
parseResponseArray: function (data, getHeaders) {
    if (angular.isArray(data)) {
        return {"array": data};
    }
    return data;
}

by doing this, you can configure common interceptors and some request's own interceptors well! :)
If any practice better,please tell me! thanks!

Where exactly are you adding the `addTransformResponses`, `parseResponseJson` and `parseResponseArray` functions? — Mauro, May 05 '15 at 15:05

$resource transformResponse not working

3 Answers3

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