lib/protobuf/nats.rb in protobuf-nats-0.5.0 vs lib/protobuf/nats.rb in protobuf-nats-0.5.1

@@ -17,10 +17,11 @@
     class << self
       attr_accessor :client_nats_connection
     end
 
     module Messages
-      ACK = "\1".freeze
+      ACK  = "\1".freeze
+      NACK = "\2".freeze
     end
 
     NatsClient = if defined? JRUBY_VERSION
                    require "protobuf/nats/jnats"
                    ::Protobuf::Nats::JNats