Some Fedex API support for GoLang (ATM just for tracking)
Fedex API's are one of those WDSL SOAP monster documented in a gigantic PDF file, don't we all love those.
I did not bother dealing with all of that here and only created what I needed so far.
I might add more over time but for now it provides:
See fedex_example.go for usage examples
Note that you will need an API key and Password as well as Accont and Meter numbers from Fedex. See: http://images.fedex.com/ca_english/businesstools/webservices/Web_Services_Guide_ENG.pdf