# JsonJournalHostingExtensions.UseJsonJournalFormat(ISiloBuilder, IJsonTypeInfoResolver)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.journaling/orleans.journaling.json.jsonjournalhostingextensions/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.journaling/orleans.journaling.json.jsonjournalhostingextensions/methods/)

[Source](https://github.com/dotnet/orleans/blob/8bc9fd244427351ad24ccc039a9e7642a42c1cc4/src/Orleans.Journaling/Formats/Json/JsonJournalHostingExtensions.cs#L103-L105)

```csharp
public static ISiloBuilder UseJsonJournalFormat(this ISiloBuilder builder, IJsonTypeInfoResolver typeInfoResolver)
```

Configures this silo with the JSON Lines Orleans.Journaling format family and registers source-generated metadata for journaled payload values.

### Parameters

- `builder` (`ISiloBuilder`): The silo builder.
- `typeInfoResolver` (`IJsonTypeInfoResolver`): The resolver, typically a generated `System.Text.Json.Serialization.JsonSerializerContext` instance.

### Returns

The silo builder for chaining.

### Examples

```csharp
builder.AddJournaling().UseJsonJournalFormat(MyJournalJsonContext.Default);
```