Backbone.sync

This is responsible to handle connections between a RESTful server and the Backbone application is the Backbone.sync module. It transforms the fetch() and save() operations into HTTP requests:

• fetch() is mapped as a read operation. This will make GET to the the urlRoot attribute with the model ID for a model or the url attribute for a collection.

• save() is mapped as a create or update operation; it depends on the isNew() method:

  • This will be mapped as create if the model does not have an ID (isNew() method return true). A POST request is executed.

  • This will be mapped as update if the model already has an ID (isNew() method returns false). A PUT request is executed.

• destroy() is mapped as a delete operation. This will make DELETE to the the urlRoot attribute with the model ID for a model or the url attribute for a collection.

To better understand how Backbone.sync does its job, consider the following examples:

// read operation will issue a GET /contacts/1
varjohn= new Contact...