Author: Pavel Safronov

Amazon DynamoDB recently added Time-to-Live (TTL) support, a way to automatically delete expired items from your DynamoDB table. This blog post discusses this feature, how it’s exposed in the AWS SDK for .NET, and how you can take advantage of it. Using Time-to-Live At a high-level, you configure TTL by choosing a particular attribute on […]

In an earlier post, we discussed how you can turn on AWS SDK for .NET logging and how to log the SDK request metrics in JSON. In this post, we will discuss how you can use log4net or System.Diagnostics logging to gain access to the real RequestMetrics objects and work with raw metrics. This approach […]

In version 3.1.1.2 of the DynamoDB .NET SDK package, we added pagination support to the Document Model. This feature allows you to use a pagination token returned by the API to paginate a set of Query or Scan results across sessions. Until now, it was not possible to resume pagination of Query or Scan results […]

In version 3.1.1 of the DynamoDB .NET SDK package, we added enum support to the Object Persistence Model. This feature allows you to use enums in .NET objects you store and load in DynamoDB. Before this change, the only way to support enums in your objects was to use a custom converter to serialize and […]

Last month, with the release of version 3 of the AWS SDK for .NET, Xamarin and Portable Class Library (PCL) support was announced as an in-preview feature. We’ve worked hard to stabilize this feature and with today’s release, we are labeling Xamarin and PCL support production-ready. This applies to Windows Phone and Windows Store support, […]

Version 3 of the AWS SDK for .NET includes a new feature, the SDK Cache. This is an in-memory cache used by the SDK to store information like DynamoDB table descriptions. Before version 3, the SDK retrieved table information when you constructed a Table or DynamoDBContext object. For example, the following code creates a table […]

The .NET SDK team is aware that some customers are having issues using the Amazon.Util.ProfileManager.RegisterProfile method, so this blog will attempt to explain what this method does, when it should be used, and more importantly, why it should never be called inside your development application. We discussed RegisterProfile in an earlier blog post about storing […]

Clock skew is the difference in time between two computers. In the context of this blog post, it’s the difference between the time on a computer running your .NET application (client) and Amazon’s (server). If the client time is different from server time by more than about 15 minutes, the requests your application makes will […]

Amazon Cognito allows you to get temporary AWS credentials, so that you don’t have to distribute your own credentials with your application. Last year we added a Cognito credentials provider to the AWS SDK for .NET to simplify this process. With the latest update to Cognito, we are now making it even easier to use […]

The latest Amazon DynamoDB update added support for JSON data, making it easy to store JSON documents in a DynamoDB table while preserving their complex and possibly nested shape. Now, the AWS SDK for .NET has added native JSON support, so you can use raw JSON data when working with DynamoDB. This is especially helpful […]