Spring / Spring gRPC Interview Questions
How do you implement centralized exception handling for gRPC services in Spring, analogous to @ControllerAdvice for REST?
There is no built-in gRPC equivalent of @ControllerAdvice in core Spring. The common workaround is a ServerInterceptor that wraps the call's ServerCall.Listener, catching exceptions thrown while handling the call and translating them consistently into the right Status code before closing the call.
Alternatively, some teams introduce a small shared base class or utility that every @GrpcService implementation delegates to for exception-to-status mapping, keeping the translation logic in one place even without true global interception. Either approach centralizes what would otherwise be repetitive try/catch blocks scattered across every service method.
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