[bunderbunder]

The streaming message transfer modes are the main thing that make it difficult.

[hot_gril]

Streaming seems like it'd work without too much effort. It'd be less efficient for sure, but it's also not a very common use case.

[bunderbunder]

In general, I agree. But my understanding is that the problem isn't streaming in the abstract, it's supporting certain details of the streaming protocol outlined in the gRPC spec.