如何使用protobuf将ServiceStack服务与非ServiceStack客户端集成？

Question

I would like to use ServiceStack on the server side, and I would like to use protobuf-net as the serialization system used by ServiceStack. However, some of the clients will not be using the ServiceStack client libraries. They will be using protobuf-net directly.

In reading the widely linked ServiceStack protocol buffers howto ( http://stevenhollidge.blogspot.in/2012/04/servicestack-rest-with-protobuf.html ), it indicates using [DataContract] and [DataMember(Order=i)] attributes on the classes and properties respectively. However, when I read the protobuf-net documentation it indicates attributes are [ProtoContract] and [ProtoMember(i)] instead.

If I want my DTOs to work with both native protbuf-net and ServiceStack's protobuf-net wrapper do I need to add both attributes to every class and property, or will one or the other be sufficient?

Answer 1

ProtoBuf requires a mapping from Properties to numerical indexes, both of the options you've specified are equivalent ways to do this:

[DataContract]
public class Dto
{
    [DataMember(Order=i)]
    public string PropertyName { get; set; }
}

[ProtoContract]
public class Dto
{
    [ProtoMember(i)]
    public string PropertyName { get; set; }
}