DiscoveryServerCallbacks defines the callbacks that are exposed by the DiscoveryServer.ConfigWatcher.ConfigWatcher.ConfigWatcher.ConfigWatcher.ConfigWatcher.onStreamClose is called just before the bi-directional gRPC stream is closed successfully for an envoy
instance.onStreamCloseWithError is called just before the bi-directional gRPC stream is closed for an envoy instance
due to some error that has occurred.onStreamOpen is called when the bi-directional gRPC stream is opened for an envoy instance, before the
initial Discovery.DiscoveryRequest is processed.onStreamRequest is called for each Discovery.DiscoveryRequest that is received on the stream.onStreamResponse is called just before each Discovery.DiscoveryResponse that is sent on the stream.Copyright © 2018 The Envoy Project. All rights reserved.