How use token authentication with Rails, Devise and Backbone.js?

Question

I\'m trying to build a mobile application with PhoneGap, jQuery Mobile and Backbone.js on the client-side - with a Rails 3 JSON API running server-side.

I know how t

Answer 1

The key is to introduce it in the Backbone.sync method.

Take a look at this implementation: https://github.com/codebrew/backbone-rails/blob/master/vendor/assets/javascripts/backbone_rails_sync.js

You can add it yourself this way:

Backbone.old_sync = Backbone.sync
Backbone.sync = function(method, model, options) {
    var new_options =  _.extend({
        beforeSend: function(xhr) {
            var token = $('meta[name="csrf-token"]').attr('content');
            if (token) xhr.setRequestHeader('X-CSRF-Token', token);
        }
    }, options)
    return Backbone.old_sync(method, model, new_options);
};

Check out this fiddle: http://jsfiddle.net/dira/ZcY3D/14/