intercept unumplemented method (for prometheus metrics)

[petr...@gmail.com]

Our SRE team want add to metrics all call for unimplemented method. Is there way to do it? to intercept when some client call unimplemented method?

Right now i have MonitorInterceptor, where i handle some thing like metrics, opentracing etc. but this interceptor is not call when some client call unimplemented method.

I am using Kotlin with Vertx GRPC

[zda...@google.com]

I'm not familiar with VertX gRPC, but in Java, interceptor is still called when some client calls an unimplemented method.