C++ Async Client Example - doesn't do anything asynchronously?

[Christopher Pisz]

I am trying to learn how to use gRPC asynchronously in C++. Going over the client example at https://github.com/grpc/grpc/blob/v1.33.1/examples/cpp/helloworld/greeter_async_client.cc I don't see how anything asynchronous is being demonstrated. There is one and only one RPC call, and it blocks on the main thread until the server processes it and the result is sent back.

What I need to do is create a client that can make one RPC call, and then start another while waiting for the result of the first to come back from the server.

I've got no idea how to go about that.

[Jeff Steger]

See this for an example of what you are looking for: 

https://github.com/lbj137/repo1

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