Ember data: Your server returned a hash with the key 0 but you have no mapping for it

Question

I have a simple model and use the RESTadapter to get the data. The JSON request is executed, but then I receive the following error: \"Your server returned a hash with the key

Answer 1

If you don't have access to the server, it's pretty easy to modify the adapter. For the "GET" requests, you'll need to override find and findAll within your adapter:

App.Store = DS.Store.extend({
  adapter: DS.RESTAdapter.create({
    find: function(store, type, id) {
      var root = this.rootForType(type), adapter = this;

      return this.ajax(this.buildURL(root, id), "GET").
      then(function(json){
        var updatedJSON = {};
        updatedJSON[root] = json;
        adapter.didFindRecord(store, type, {article: json}, id);
      }).then(null, DS.rejectionHandler);
    },

    findAll: function(store, type, since) {
      var root, adapter;

      root = this.rootForType(type);
      adapter = this;

      var resourceName = this.pluralize(root);

      return this.ajax(this.buildURL(root), "GET",{
        data: this.sinceQuery(since)
      }).then(function(json) {
        var updatedJSON = {};
        updatedJSON[resourceName] = json;
        adapter.didFindAll(store, type, updatedJSON);
      }).then(null, DS.rejectionHandler);
    }
  })
});

At the moment, these functions live in the source code here in rest_adapter.js.

The difference here is where updatedJSON is defined in each of the functions. It takes the json from the server and constructs a new object with (hopefully) the correct key you need.

Answer 2

The JSON you are looking for should have a root element

{"articles": [ 
  { 
    "id": 1,
    "title": "Title 1"
  },
  {
    "id": 2,
    "title": "Title 2"
   }
  ]
}

You can find documentation in the Ember Docs RESTAdapter or at the JSONapi project

Answer 3

@kiwiupover was 98% right, when having multiple records it should be pluralized to articles:

{"articles": [
     { 
       "id": 1,
       "title": "Title 1"
     },
     {
       "id": 2,
       "title": "Title 2"
     }
]}