Hey :) I know, everyones new favorite child is OpenCensus right now, but since the C# implementation is still on it's way, and some others may also be looking for it:
I just NuGet released the first version of
OpenTracing.Contrib.Grpc, the OpenTracing instrumentation library for gRPC on C#. It's developed in close team-up with the official
OpenTracing C# client and the official
Jaeger C# client to make sure, everything runs smoothly. It's labled as v0.0.1, but it's already used here internally for some time. It has been well-tested with
opentracing-csharp v0.12.0,
jaeger-client-csharp v0.0.10 and
jaeger-ui for visualization.
It would be great to get some feedback in case someone uses it. Feel free to use the issue tracker on GitHub.