message.rb in ably-rest-1.0.0

- old
+ new

@@ -122,20 +122,31 @@
     def protocol_message
       raise RuntimeError, 'Message is not yet published with a ProtocolMessage. ProtocolMessage is nil' if @protocol_message.nil?
       @protocol_message
     end
 
+    # Contains any arbitrary key value pairs which may also contain other primitive JSON types, JSON-encodable objects or JSON-encodable arrays.
+    # The extras field is provided to contain message metadata and/or ancillary payloads in support of specific functionality, e.g. push
+    # @api private
+    def extras
+      attributes[:extras].tap do |val|
+        unless val.kind_of?(IdiomaticRubyWrapper) || val.kind_of?(Array) || val.kind_of?(Hash) || val.nil?
+          raise ArgumentError, "extras contains an unsupported type #{val.class}"
+        end
+      end
+    end
+
     private
     def raw_hash_object
       @raw_hash_object
     end
 
     def protocol_message_index
       protocol_message.messages.map(&:object_id).index(self.object_id)
     end
 
     def set_attributes_object(new_attributes)
-      @attributes = IdiomaticRubyWrapper(new_attributes.clone.freeze, stop_at: [:data])
+      @attributes = IdiomaticRubyWrapper(new_attributes.clone.freeze, stop_at: [:data, :extras])
     end
 
     def logger
       return @logger if @logger
       protocol_message.logger if protocol_message