@aws-sdk/signature-v4-multi-region

@aws-sdk/signature-v4-multi-region

See also https://github.com/aws/aws-sdk-js-v3/tree/main#functionality-requiring-aws-common-runtime-crt.

Usage

This package contains optional dependency @aws-sdk/signature-v4-crt. You need to install this package explicitly to sign an un-regional request using SigV4a algorithm. The package contains Node.js native implementation which requires building at installation. The installed package MAY NOT work if the instance building the package runs a different operating system than the instance running the application.

The @aws-sdk/signature-v4-crt is only supported in Node.js currently because it depends on a native dependency.

Please refer to this issue for more information.

Note: You can also use a native JS (non-CRT) implementation of the SigV4A signer, instructions for which are here: https://github.com/aws/aws-sdk-js-v3/tree/main#functionality-requiring-aws-common-runtime-crt

Please refer to the note regarding bundle size in the link above, before deciding to use the JS SigV4A signer (including in browsers).

Description

This package provides a SigV4-compatible request signer that wraps a pure-JS SigV4 signer (@aws-sdk/signature-v4) for regional requests, and attempts to call a native implementation of SigV4a signer(@aws-sdk/signature-v4-crt) it the request is multi-region.

A multi-region request is identified by the signingRegion parameter. A request is multi-region if the signingRegion parameter is set to *.

Changelog

3.844.0 (2025-07-09)

Bug Fixes

• codegen: generate default endpoint provider for default regional AWS endpoints (#7190) (27a66c0)
• tests: prevent changeset race condition in parallel tests (#7183) (2d376dc)

Features

• client-ec2: Adds support to Capacity Blocks for ML for purchasing EC2 P6e-GB200 UltraServers. Customers can now purchase u-p6e-gb200x72 and u-p6e-gb200x36 UltraServers. Adds new DescribeCapacityBlocks andDescribeCapacityBlockStatus APIs. Adds support for CapacityBlockId to DescribeInstanceTopology. (202ec5f)
• client-freetier: This release introduces four new APIs: GetAccountPlanState and UpgradeAccountPlan for AWS account plan management; ListAccountActivities and GetAccountActivity that provide activity tracking capabilities. (5ad5755)
• clients: update client endpoints as of 2025-07-09 (accc6e8)