 	private var includes: [String] = []
 	private var filters: [QueryFilter] = []
 	private var fields: [String: [String]] = [:]
+	private var sortOrders: [String] = []
 	
 	// Pagination parts. These are scoped internal so they can be accessed by the Paginator class.
 	internal var page: Int?

	}
	
	
	// MARK: URL building
	
	/**

		// Fields
		for (resourceType, fields) in self.fields {
			var item = NSURLQueryItem(name: "fields[\(resourceType)]", value: (fields as NSArray).componentsJoinedByString(","))
			queryItems.append(item)
		}
		
		// Sorting
		if self.sortOrders.count != 0 {
			var item = NSURLQueryItem(name: "sort", value: (self.sortOrders as NSArray).componentsJoinedByString(","))
			queryItems.append(item)
		}
		
