# DynamoDBGrainStorageServiceCollectionExtensions.AddDynamoDBGrainStorageAsDefault(IServiceCollection, Action<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/e4e752cedecc2976811db49802c7a999b1f1c704/src/AWS/Orleans.Persistence.DynamoDB/Hosting/DynamoDBGrainStorageServiceCollectionExtensions.cs)

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

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

### Parameters

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