Easiest way to retrieve data with Backbone.js collections

I am currently attempting to download, parse, and display a list from the XML data received from my server using Backbone.js. Below is the code snippet:

var Item = Backbone.collection.extend({
    url: "http://myurl.com/file.xml",
    parse: function() {
        console.log("parse");
    },
    success: function(data) {
        console.log(data);
    },
    error: function() {
        console.log("error");
    }
});

var View1=Backbone.view.extend({
    initialize: function() {
        var item = new Item();
        item.fetch();
    }
});

Upon checking in the Chrome extension, the XML file is successfully downloaded, but the breakpoints set in the parse, success, error sections are leading directly to the error section.

Furthermore, there are 3 arguments present, but I am unable to extract any information from them.

Answer №1

While Backbone framework may not natively support fetching XML data, you have the option to override the sync method to implement your own custom parsing logic. If you prefer to avoid delving into Backbone's internal workings, you can first perform a $.ajax GET request, parse the retrieved XML response into a JSON Array, and then utilize that array with the Backbone#Collection-reset method.

For fetching data in Backbone collections, you can refer to Backbone#Collection-fetch.

It is expected that the server handler for fetch requests will return a JSON array of models.

To understand the behavior of Backbone's sync method, you can check Backbone#Sync.

By default, the sync method in Backbone serializes a model's attributes into JSON format for saving it on the server. In response, the server should send back the modified attributes that require updating on the client side. For "read" requests from a collection (Collection#fetch), an array of model attribute objects should be sent back.

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