Restful JSON requests

jquery_restful.js

/**
* Extend the jQuery ajax methods to make JSON requests
* available to all the RESTful CRUD operations
* (POST, PUT, DELETE)
*
* Also overwrites the default getJSON method to provide the option
* for a separate method for handling errors
*
* @author Damian Galarza (galarza.d@gmail.com)
*/
(function ($) {
		
	/**
	* Method that actually makes the request, xJSON convenience methods
	* proxy to this method to make things as DRY as possible
	*
	* @param {Array} args Array of args from original convenience method
	* @option args {String} url The URL to request
	* @option args {Object} data Data to send with request
	* @option args {Function} success Callback to fire upon successful request
	* @option args {Function} error Callback to fire upon request error
	*/
	var ajax_request = function(type, args) {
		$.ajax({
			type: type,
			url: args[0],
			data: args[1],
			success: args[2],
			error: args[3],
			beforeSend: function(xhr) {
				xhr.setRequestHeader('Accept', 'application/json, text/javascript');
			}
		})
	};
	
	/**
	* Retreive JSON from a server via specified method:
	* getJSON, postJSON, putJSON, deleteJSON
	*
	* @param {Array} args Configuration Data
	* @option args {String} url The URL to request
	* @option args {Object} data Data to send with request
	* @option args {Function} success Callback to fire upon successful request
	* @option args {Function} error Callback to fire upon request error
	*/
	$.getJSON = function() {
		ajax_request('GET', arguments);
	};
	
	$.postJSON = function() {
		ajax_request('POST', arguments);
	};
	
	$.putJSON = function() {
		ajax_request('PUT', arguments);
	};
	
	$.deleteJSON = function() {
		ajax_request('DELETE', arguments);
	};
	
})(jQuery);