Is there a easy way to tell where a gRPC call failed in header?

[Juanyi Feng]

Is there any easy way to tell which layer did a gRPC call fail in? (gRPC server layer vs application code layer)

Is there any field in the header that I can look into to easily tell? Or what's the common practice for it?

I think it can be solved by implementing a server interceptor and flag a customized metadata before it goes into the application code. But I wonder if there's other neater way. Thanks!