AWS Developer Tools Blog

Tag: SDK

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Reduce Lambda cold start times: migrate to AWS SDK for JavaScript v3

The AWS SDK for JavaScript (JS SDK) v3 is a rewrite of v2 with a modular architecture and frequently requested features, such as a first-class TypeScript support and a new middleware stack. As our customers migrate their applications from JS SDK v2 to v3, they have been requesting reliable benchmarks to assess the SDKs performance […]

Introducing Smithy for Python

Introducing Smithy for Python

AWS is excited to announce a preview of Smithy client generation for Python. This tooling will enable developers to generate clients in type-hinted Python in the same model-driven manner that AWS has used to develop its services for more than a decade. Writing and maintaining hand-written clients for a web service is both time-consuming and […]

New: Improved flexibility when configuring endpoint URLs with the AWS SDKs and tools

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 […]

Announcing Amazon S3 checksums support in the AWS SDK for Kotlin

We are excited to announce support for Amazon S3 checksums in the AWS SDK for Kotlin! A checksum is a unique fingerprint calculated from a set of data that can be used to check whether the data has been altered or corrupted during transfers. Configuring a checksum is a valuable precaution to help maintain the […]

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Why and how you should use AWS SDK for JavaScript (v3) on Node.js 18

The Node.js 18.x runtime was promoted to Active Long Term Support (LTS) on October 25th, 2022, and is now available in AWS Lambda. The AWS SDK for JavaScript (v3) is included by default in AWS Lambda Node.js 18 runtime as a convenience for developers building simpler functions. You can read about features in Node.js 18 […]

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Announcing the end of support for Node.js 12.x in the AWS SDK for JavaScript (v3)

This blog post is about AWS SDK for JavaScript (v3), and not AWS Lambda. As of Oct 2022, Lambda is planning Node.js 12.x deprecation on Mar 31, 2023. If your code uses Lambda Provided SDK, it’s v2 which continues to support Node.js 12.x Starting November 1, 2022, AWS SDK For JavaScript (v3) will no longer […]

Using atomic counters in the Enhanced DynamoDB AWS SDK for Java 2.x client

We are pleased to announce that users of the enhanced client for Amazon DynamoDB in AWS SDK for Java 2.x can now enable atomic counters, as well as add custom DynamoDB update expressions through the enhanced client extension framework. Customers have told us that they want improved performance and consistency when updating table records. The […]

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Announcing the end of support for Internet Explorer 11 in the AWS SDK for JavaScript (v3)

Starting October 1, 2022, AWS SDK For JavaScript (v3) will end support for Internet Explorer 11 (IE 11). The browser artifacts published in our npm packages will no longer target ES5. If your browser application depends on the AWS SDK for JavaScript (v3), we encourage you to support only modern secure and evergreen browsers like […]

Error Handling in Modular AWS SDK for JavaScript (v3)

In the version 3.53.0 of the modular AWS SDK for JavaScript (v3), we introduced concrete classes for AWS service exceptions which support asserting service exceptions with instanceof operator. In this post, we cover how to use it and how it improves the error handling experience. Why did we do it? Previously, the AWS SDK for […]

Introducing Smart Configuration Defaults in the AWS SDK for Java v2

The default configuration in the AWS SDK for Java v2 just got smarter! We are pleased to announce a new SDK feature —⁠ smart configuration defaults in the AWS SDK for Java v2 (version 2.17.102 or later), which vends a set of predefined sensible default values tailored to common usage patterns. With this new opt-in […]