# DynamoDBGrainStorageServiceCollectionExtensions.AddDynamoDBGrainStorageAsDefault(IServiceCollection, Action<OptionsBuilder<DynamoDBStorageOptions>>)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.persistence.dynamodb/orleans.hosting.dynamodbgrainstorageservicecollectionextensions/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.persistence.dynamodb/orleans.hosting.dynamodbgrainstorageservicecollectionextensions/methods/)

[Source](https://github.com/dotnet/orleans/blob/b7a9e3e1c9c54b3cec3a467c5734bf7744541bcf/src/AWS/Orleans.Persistence.DynamoDB/Hosting/DynamoDBGrainStorageServiceCollectionExtensions.cs)

```csharp
public static IServiceCollection AddDynamoDBGrainStorageAsDefault(this IServiceCollection services, Action<OptionsBuilder<DynamoDBStorageOptions>>? configureOptions = null)
```

Configure silo to use AWS DynamoDB storage as the default grain storage.

### Parameters

- `services` (`IServiceCollection`)
- `configureOptions` (`Action<OptionsBuilder<DynamoDBStorageOptions>>`)