Tag: DynamoDB

The AWS SDKs and Tools team is excited to announce improvements for configuration of the endpoint URL used for API service requests through the shared SDK configuration file and environment variables with the AWS SDKs and Tools. Previously, you could specify the endpoint URL used for AWS requests by setting the –endpoint-url command line parameter […]

We are pleased to announce that the enhanced DynamoDB client in the AWS SDK for Java 2.x now supports the mapping of immutable Java objects directly with records in your DynamoDB tables. Previously, only mutable ‘Java bean’ style objects were supported. Immutability in Java is a commonly used style that allows developers to create classes […]

Introducing Transaction Support in aws-record The aws-record Ruby Gem is a data mapper abstraction layer over Amazon DynamoDB, a key-value and document database that delivers single-digit millisecond performance at any scale. Recently, support for transactions was added to DynamoDB. DynamoDB transactions simplify the developer experience of making coordinated, all-or-nothing changes to multiple items both within […]

Today, we’re pleased to announce the GA release of version 1.0.0 of the aws-record gem. What Is aws-record? In version 1 of the AWS SDK for Ruby, the AWS::Record class provided a data mapping abstraction over Amazon DynamoDB operations. Earlier this year, we released the aws-record developer preview as a separately packaged library to provide […]

We are happy to announce that the aws-record gem is now in Developer Preview and available for you to try. What Is Aws::Record? In version 1 of the AWS SDK for Ruby, the AWS::Record class provided a data mapping abstraction over Amazon DynamoDB operations. As version 2 of the AWS SDK for Ruby was being […]

As we showed in previous posts, it’s easy to put JSON items into Amazon DynamoDB, retrieve specific attributes with projection expressions, and fetch only data that meet some criteria with condition expressions. Now, let’s take a look at how we can conditionally modify existing items with Update Expressions. (Note: this code uses the same ProductCatalog […]

Amazon DynamoDB launched JSON Document Support along with several improvements to the DynamoDB API. This post is part of a series where we’ll explore these features in more depth with the AWS SDK for Ruby V2. In particular, this post focuses on putting items into DynamoDB using the Ruby SDK and controlling the data we […]

Back in October of 2014, Amazon DynamoDB added support for new data types, including the map (M) and list (L) types. These new types, along with some API updates, make it possible to store more complex, multilevel data, and use DynamoDB for document storage. The DynamoDB Marshaler To make these new types even easier for […]

For the final installment of our Amazon DynamoDB series, we are going to look at the new expression support. There are two types of expressions used by DynamoDB. First you can use expressions to update specific fields in an item. The other way is to use expressions on puts, updates, or deletes to prevent the […]

This week, we are running a series of five daily blog posts that will explain new DynamoDB changes and how they relate to the AWS SDK for .NET. This is the fourth blog post, and today we will be discussing the Object Persistence Model. Object Persistence Model The Object Persistence Model API provides a simple […]