# SerializationHostingExtensions.AddProtobufSerializer(ISerializerBuilder)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization.protobuf/orleans.serialization.serializationhostingextensions/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.serialization.protobuf/orleans.serialization.serializationhostingextensions/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Serializers/Orleans.Serialization.Protobuf/SerializationHostingExtensions.cs#L23-L25)

```csharp
public static ISerializerBuilder AddProtobufSerializer(this ISerializerBuilder serializerBuilder)
```

Adds support for serializing and deserializing Protobuf IMessage types using `Google.Protobuf.MessageParser`.

### Parameters

- `serializerBuilder` (`ISerializerBuilder`): The serializer builder.