Keepalive

let group = MultiThreadedEventLoopGroup(numberOfThreads: 1)

let keepalive = ClientConnectionKeepalive(
  interval: .seconds(15),
  timeout: .seconds(10)
)

let channel = try GRPCChannelPool.with(
  target: .host("localhost"),
  transportSecurity: .tls(...),
  eventLoopGroup: group
) {
  // Configure keepalive.
  $0.keepalive = keepalive
}

let group = MultiThreadedEventLoopGroup(numberOfThreads: 1)

let keepalive = ServerConnectionKeepalive(
  interval: .seconds(15),
  timeout: .seconds(10)
)

let configuration = Server.Configuration(
  target: .hostAndPort("localhost", 443),
  eventLoopGroup: group,
  connectionKeepalive: keepalive,
  serviceProviders: [YourCallHandlerProvider()]
)

let server = Server.makeBootstrap(configuration: configuration)