grpc-java: Get Status exception with both error details and cause

It looks like the only way to set error details is to use the Status proto message and then use the StatusProto util to convert it to an exception. This doesn’t provide a way to specify a Throwable cause like using the Status class does.

Is there a way I’m missing to do this? The cause is really helpful in debugging (we have a server interceptor that logs it for a subset of errors).

About this issue

Original URL
State: closed
Created a year ago
Comments: 15 (8 by maintainers)

Most upvoted comments

What I had originally expected is that io.grpc.Status would be a superset of google.rpc.Status. The fact that Metadata is used to pass a copy of the google.rpc.Status is only relevant when building a StatusException. io.grpc.Status doesn’t really need Metadata in order to hold status details.

io.grpc.Status is in grpc-api, which can’t have a dependency on protobuf

This is the real sticking point. There’s not really a way to have io.grpc.Status hold onto status details without this, as those are protobuf messages 😦 .

SanjayVas on Jun 2, 2023

We have an example: https://github.com/grpc/grpc-java/blob/master/examples/src/main/java/io/grpc/examples/errordetails/ErrorDetailsExample.java The relevant code piece is:

            Status status = Status.newBuilder()
                .setCode(Code.INVALID_ARGUMENT.getNumber())
                .setMessage("Email or password malformed")
                .addDetails(Any.pack(DEBUG_INFO))
                .build();
            responseObserver.onError(StatusProto.toStatusRuntimeException(status));

larry-safran on May 31, 2023