# DynamoDBServiceCollectionReminderExtensions Methods

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.reminders.dynamodb/orleans.hosting.dynamodbservicecollectionreminderextensions/)

## UseDynamoDBReminderService(IServiceCollection, Action<DynamoDBReminderStorageOptions>) {#usedynamodbreminderservice-this-microsoft-extensions-dependencyinjection-iservic-91f1b8fd}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.reminders.dynamodb/orleans.hosting.dynamodbservicecollectionreminderextensions/methods/usedynamodbreminderservice-this-microsoft-extensions-dependencyinjection-iservic-91f1b8fd/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/AWS/Orleans.Reminders.DynamoDB/DynamoDBServiceCollectionReminderExtensions.cs#L27-L31)

```csharp
public static IServiceCollection UseDynamoDBReminderService(this IServiceCollection services, Action<DynamoDBReminderStorageOptions> configure)
```

Adds reminder storage backed by Amazon DynamoDB.

### Parameters

- `services` (`IServiceCollection`): The service collection.
- `configure` (`Action<DynamoDBReminderStorageOptions>`): The delegate used to configure the reminder store.

### Returns

The provided `Microsoft.Extensions.DependencyInjection.IServiceCollection`, for chaining.