bdmsg implements bidirectional directly message protocol with golang. Message is defined as variable-length byte array, they are distinguished by message-type, they can be freely transferred between the server and the client.
This package now has a better alternative which is more concise and customizable: msgpump.
Install bdmsg using the "go get" command:
go get github.com/someonegg/bdmsg
The Go distribution is bdmsg's only dependency.