Global error handler for backbone.js ajax requests

Question

Is there way to bind one error handler for ajax requests that performs by backbone.js?

My situation: I can get 401 (Unauthorized) at any time, so I need to show logi

Answer 1

You can handle this via the jQuery .ajaxSetup method. We have an identical situation (backbone app which may get a 401 error at any time) and we handle it by using jQuery's ajaxSetup in the entry point of our app:

var appView = new AppView(options);

$.ajaxSetup({
    cache: false,
    statusCode: {
        401: function () {
            appView.signIn();
        }
    }
});

appView.render();

Backbone.history.start({ root: config.rootUrl, pushState: true });

This approach gives global error handling without the need to extend the Backbone base classes.