Better pattern is http://eagain.net/articles/go-json-kind/
Then you do one switch to get the correct message type to decode into, and boom, you can just `.Run` or `.Handle` or however you design the interface, and you are done.
Some variation of this is certainly what I would recommend. Elasticsearch API uses the GP's method, interestingly as it's a Java project?!, and is not that fun to work with in certain languages type systems :|
