The goipp library is fairly complete implementation of IPP core protocol in pure Go. Essentially, it is IPP messages parser/composer. Transport is not implemented here, because Go standard library has an excellent built-in HTTP client, and it doesn't make a lot of sense to wrap it here.
High-level requests, like "print a file" are also not implemented, only the low-level stuff.
All documentation is on godoc.org -- follow the link above. Pull requests are welcomed, assuming they don't break existing API.
For more information and software downloads, please visit the Project's page at GitHub