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Spring / Spring gRPC Interview Questions

How would you implement deadline/timeout handling for gRPC calls from a Spring client?

A deadline is set on the stub before making the call, e.g. stub.withDeadlineAfter(500, TimeUnit.MILLISECONDS).getOrder(request). If the server hasn't responded by then, the call fails on the client with Status.DEADLINE_EXCEEDED rather than hanging indefinitely.

Deadlines are most effective when propagated: if service A calls service B which calls service C, the remaining time budget should flow downstream so C doesn't keep working long after A has already given up. grpc-java can propagate the current deadline automatically to calls made within the same context, which keeps a chain of internal calls from wasting work on a request the original caller has already abandoned.

What client-side call sets a per-call time budget on a gRPC stub?
What status does a gRPC call typically fail with when its deadline is exceeded?

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