[wunki]

Or, another alternative is Cap'n Proto [1] from the primary author of Protocol Buffers v2. It smooths some of the bumps of protocol buffers.

[1]: http://kentonv.github.io/capnproto/

[ntoshev]

Came here to write this. Promise pipelining is an especially interesting attempt to solve latency in RPC (although it doesn't always work).

[ithkuil]

I'd love to see Go support for capnproto RPC; I wish I had spare time.