There are a few usable libraries now from folks who have reverse engineered it. I've used https://github.com/matin/garth https://github.com/matin/garth successf

There are a few usable libraries now from folks who have reverse engineered it. I've used https://github.com/matin/garth https://github.com/matin/garth successfully, there should be libraries available in most other popular languages