# JsonLinesJournalFormat.JournalFormatKey

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.journaling/orleans.journaling.json.jsonlinesjournalformat/) | [Fields](/orleans/docs/api/csharp/microsoft.orleans.journaling/orleans.journaling.json.jsonlinesjournalformat/fields/)

[Source](https://github.com/dotnet/orleans/blob/8bc9fd244427351ad24ccc039a9e7642a42c1cc4/src/Orleans.Journaling/Formats/Json/JsonLinesJournalFormat.cs)

```csharp
public const string JournalFormatKey
```

The well-known key for the JSON Lines journal format.