# JsonDurableListCommandCodec<T> Constructors

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.journaling/orleans.journaling.json.jsondurablelistcommandcodec-1/)

## JsonDurableListCommandCodec<T>(JsonSerializerOptions?) {#constructor-system-text-json-jsonserializeroptions-nullable-604bdd3c}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.journaling/orleans.journaling.json.jsondurablelistcommandcodec-1/constructors/constructor-system-text-json-jsonserializeroptions-nullable-604bdd3c/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Journaling/Formats/Json/JsonDurableCollectionCommandCodecs.cs#L9-L12)

```csharp
public JsonDurableListCommandCodec(JsonSerializerOptions? options = null)
```

JSON codec for durable list journal entries.

### Parameters

- `options` (`JsonSerializerOptions?`)