GetGatewayConnection gets a connection to the SyncRPC HTTP server who can forward the message to the corresponding gateway.

GetServiceAddressForGateway returns the ip addr for the SyncRPCHTTPServer instance, which is in the same process of the Dispatcher grpc server who has an open bidirectional stream with the gateway with hwId.

SetPort sets the port of http_server.

SyncRPC gateway header key.

Gateway services.