Hi,

Thank you for writing this library.

I'm currently trying trying to use asio-grpc for implementing a service that, as a part of a request, can call back to a connected client to get additional data - dependency injection style. This dependency injection channel is a long-living bidirectional streaming grpc call. My problem is that the server-logic is calling into a normal pure virtual class (interface) for requesting these values. AFAIK this rules out using co_await, co_return since this would imply my interface should return a coroutine. So I'm trying to figure out if I can implement such interface by using co_yield, where the consumer of the values does not need to be a coroutine.

The server-logic is being triggered by another async grpc call, but the server-logic itself is not async.

I hope someone is able to help me to figure out if and how this is possible. Let me know if my description is not clear enough.

Best regards