PATCH request method in Backbone.js

Question

What is the right way to perform PATCH request while saving model\'s attributes in Backbone.js?

Answer 1

You'll have to override Backbone.sync and extend the existing method mapper

var methodMap = {
    'create': 'POST',
    'update': 'PUT',
    'delete': 'DELETE',
    'read':   'GET',
    'patch':  'PATCH'
};

you'll have to create your own patch method on a model like

Backbone.Model.prototype.patch = function(options) 
{
    // some code here that checks what attributes have changed since last save
    var xhr = (this.sync || Backbone.sync).call(this, 'patch', this, options);
    return xhr;  
}

I'm sure you can extend Backbone further to include OPTIONS and HEAD if you needed to

Note though, that even through jQuery supports the PATCH, OPTIONS and HEAD methods, your end-users' browser may not.