Australia Post Shipping for Cargo
Cargo, by Duncan McClean, is an awesome addon for e-commerce for Statamic.
This addon adds integration to the Australia Post Postage Assessment Calculator (PAC) API for shipping cost calculations based on the products in your store.
Using the Australia Post PAC does require additional Product attributes: please read this entire document to understand the requirements and configuration options.
Features
commands to list the Australia Post Service Codes for Domestic and International Parcel services
a fieldtype for excluding Products from shipping calculations
an internal service that translates an Order of multiple Products in to Australia Post-sized packages for postage quoting via the Australia Post Postage Assessment Calculator (PAC)
an Australia Post shipping method for Cargo