[grpc-Java] Best way to async client

[Oscar Besga]

Greetings all !

I'm developing an open source project with gRPC (an others)

I wish to use asynchronous class between client and server, and I want to know the best way to do it. Even I've been searching, I've not found good answers; so here I'm asking to experienced people.

It is better to make the client asynchronous with streaming on the client / server reponse

or

directly using Server.ServerFututreStub.method and ListenableFuture ?

I rather prefer the second ona as my server emits only one response to the client y the gRPC calls, and can male it wait a while.

Thanks

[Sergii Tkachenko]

Greetings to you too!

A good place to start is Bidirectional streaming RPC sections of gRPC Java basic tutorial.

Next, there are blog posts So You Want to Optimize gRPC - Part 1 and So You Want to Optimize gRPC - Part 2, which look into differences between non-blocking stubs and the Listenable Future API.

Then, there are a few ListenableFuture usage examples here: https://github.com/grpc/grpc-java/tree/master/examples/src/main/java/io/grpc/examples/errorhandling.

I hope this helps.

Best regards,

Sergii