rpc samples like /rpcz

[Jille Timmermans]

Hi,

I'm a recent Xoogler and I'm wondering how the outside world lives
without /rpcz. I found OpenCensus, but it only seems to show statistics
and not the sampling of recent RPCs at various latency thresholds.

Is there any library that can sample incoming+outbound RPCs and show
their payload for Golang?

I looked into building it myself, but I haven't found a good place to
hook into the gRPC library. Using interceptors could work, but would
require to be installed in every server/client created rather than
globally. Abusing the binarylog seemed the only place to be global and
get payloads, but it only has (possibly truncated) binary protos without
their definition easily available.

-- Jille