Can you please share a minimal client code that exhibits the behavior?
On Tue, Aug 21, 2018 at 6:22 AM <[email protected]> wrote:
> Hi,
>
> I've been trying ascertain the correct way to handle error behaviour from
> streaming endpoints.
>
> My code effectively does the following:
>
> service MyService {
> rpc StreamEndpoint(Request) returns (stream Response)
> }
>
> message Request {
> repeated string query_ids = 1;
> }
>
> message Response {
> string object_id = 1;
> }
>
> class MyService(MyServiceServicer):
>
> def StreamEndpoint(self, request, context):
> if not request.query_ids:
> context.set_code(grpc.StatusCode.INVALID_ARGUMENT)
> context.set_details('Must set at least one id')
> yield Empty()
> for obj in self.db.query(id_list=request.query_ids):
> yield obj.to_protobuf()
>
>
> I was expecting the client upon calling StreamEndpoint without query_ids
> to throw an RpcError (the client is also in Python) upon getting a code
> that isn't OK. However, it doesn't, even though the code in the response is
> correctly set to INVALID_ARGUMENT.
>
> Is this the correct behaviour? If so, what is usually the recommended way
> of handling these errors in python, as I have relied on the exception on
> non-streaming endpoints.
>
> Thanks
>
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