grpc.kt

fun sendMessage(
    message: String,
    channel: ManagedChannel?
):String? {
    return try {
        val stub = GreeterGrpc.newBlockingStub(channel)
        val request = HelloRequest.newBuilder().setName(message).build()
        val reply = stub.sayHello(request)
        reply.message
    } catch (e: Exception) {
        e.message
    }
}