OpenTracing support for gRPC in Go
The otgrpc package makes it easy to add OpenTracing support to gRPC-based
systems in Go.
Installation
go get github.com/opentracing-contrib/go-grpc
Documentation
See the basic usage examples below and the package documentation on godoc.org.
Client-side usage example
Wherever you call grpc.Dial:
// You must have some sort of OpenTracing Tracer instance on hand.
var tracer opentracing.Tracer = ...
...
// Set up a connection to the server peer.
conn, err := grpc.Dial(
address,
... // other options
grpc.WithUnaryInterceptor(
otgrpc.OpenTracingClientInterceptor(tracer)),
grpc.WithStreamInterceptor(
otgrpc.OpenTracingStreamClientInterceptor(tracer)))
// All future RPC activity involving `conn` will be automatically traced.Server-side usage example
Wherever you call grpc.NewServer:
// You must have some sort of OpenTracing Tracer instance on hand.
var tracer opentracing.Tracer = ...
...
// Initialize the gRPC server.
s := grpc.NewServer(
... // other options
grpc.UnaryInterceptor(
otgrpc.OpenTracingServerInterceptor(tracer)),
grpc.StreamInterceptor(
otgrpc.OpenTracingStreamServerInterceptor(tracer)))
// All future RPC activity involving `s` will be automatically traced.