Does protobuf-net use BinaryFormatter or other formatter as an base serializer to serialize an object as byte[], and then write to stream?
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I use protobuf-net serialize data and want to deserialize in golang, is there any serializer can do the work in go?
Protobuf-net is a ground-up implementation of the "Protocol Buffers" serialization format, with an idiomatic .NET API. It has nothing to do with BinaryFormatter (although it can be used to create custom ISerializable implementations for use with BinaryFormatter, if you still play in that world).
If you want to use Protocol Buffers (protobuf) with Go, just pick one of the Go implementations from this list.
Most protobuf libraries are "contract first", meaning: you need a .proto schema; to get that from protobuf-net, use Serializer.GetProto<T>() for the T that you are using as a root type.
Note: if you are serializing DateTime or TimeSpan, it would be a good idea to make sure that you are using DataFormat.WellKnown on those members - it'll make it much easier to work in a cross-platform way with other libraries; but note that this is not a data-compatible change: it fundamentally changes how those values are stored, so : if you have existing data you'll need to think of a migration strategy.