AWS Developer Blog

Category: .NET

DynamoDB Series – Expressions

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 […]

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DynamoDB Series – Object Persistence Model

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 […]

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DynamoDB Series – Conversion Schemas

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 third blog post, and today we will be discussing conversion schemas. Conversion Schemas Document doc = new Document(); doc["Id"] = 1; doc["Product"] = "DataWriter"; […]

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DynamoDB Series – Document Model

This week we are running a series of five daily blog posts that will explain new DynamoDB changes and how they relate to the .NET SDK. This is blog post number 2, and today we will be looking at the Document Model API. Document Model Yesterday, we learned about Amazon DynamoDB’s new data types such […]

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DynamoDB Series Kickoff

Last week, Amazon DynamoDB added support for JSON document data structures. With this update, DynamoDB now supports nested data in the form of lists (L type) and maps (M type). Also part of this update was native support for booleans (BOOL type) and nulls (NULL type). This week, we will be running a series of […]

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Getting Ready for re:Invent

AWS re:Invent 2014 is coming up fast. Steve Roberts and I are heading to Las Vegas and will be presenting a session where we discuss some of the latest features of the AWS SDK for .NET. We’ll also be hanging out in the Expo area at the AWS Developer Resources booth, so please drop by […]

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Amazon Cognito Credentials Provider

Amazon Cognito helps you create unique identifiers for your end users that are kept consistent across devices and platforms. Cognito also delivers temporary, limited-privilege credentials to your app to access AWS resources. With Amazon Cognito, your app can support unauthenticated guest users as well as users authenticated through a identity provider, such as Facebook, Google, […]

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Object Lifecycles

When using the AWS SDK for .NET, you may find yourself wondering how to use various components of the SDK and, more importantly, how to properly dispose of resources once you are done with them. This blog post reviews the lifecycles of various SDK objects and the best practices for using them. Lifecycles There are […]

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Performance improvements to AWS SDK for .NET

We recently fixed a performance issue which affects versions of the SDK that target .NET Framework 4.5. This issue is present in SDK versions 2.0.0.0 – 2.2.4.0 and only affects synchronous API calls. This issue results in the usage of additional threads while using the synchronous APIs. In some specific environments—for example, with ASP.NET applications […]

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