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

> [![NPM version](https://img.shields.io/npm/v/@aws-sdk/signature-v4-multi-region/latest.svg)](https://www.npmjs.com/package/@aws-sdk/signature-v4-multi-region) [![NPM downloads](https://img.shields.io/npm/dm/@aws-sdk/signature-v4-multi-region.svg)](https:/

Latest version **3.996.46** (published 2026-08-21) · Apache-2.0 license · 0 weekly downloads

## Install

```sh
npm install @aws-sdk/signature-v4-multi-region
pnpm add @aws-sdk/signature-v4-multi-region
yarn add @aws-sdk/signature-v4-multi-region
bun add @aws-sdk/signature-v4-multi-region
```

## Health

**Score 70/100 (B)** — status: active.

Positive: has types; esm support; no vulnerabilities; recently updated; high maintenance score; high quality score.

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 3.996.46 |
| Published | 2026-08-21 |
| First published | 2022-04-07 |
| Weekly downloads | 0 |
| License | Apache-2.0 |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Node | >=20.0.0 |
| Dependencies | 4 |
| Unpacked size | 37.7 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 3665 |
| Author | AWS SDK for JavaScript Team |
| Maintainers | amzn-oss, aws-sdk-bot |

## Links

- npm: https://www.npmjs.com/package/@aws-sdk/signature-v4-multi-region
- Repository: https://github.com/aws/aws-sdk-js-v3
- Homepage: https://github.com/aws/aws-sdk-js-v3/tree/main/packages/signature-v4-multi-region
- Issues: https://github.com/aws/aws-sdk-js-v3/issues
- npm.io page: https://npm.io/package/@aws-sdk/signature-v4-multi-region

## Dependencies (4)

- [tslib](https://npm.io/package/tslib.md) ^2.6.2
- [@smithy/types](https://npm.io/package/@smithy/types.md) ^4.17.2
- [@aws-sdk/types](https://npm.io/package/@aws-sdk/types.md) ^3.974.5
- [@smithy/signature-v4](https://npm.io/package/@smithy/signature-v4.md) ^5.6.12

## Recent versions

- 3.996.46 (latest) — 2026-08-21
- 3.996.45 — 2026-08-14
- 3.996.44 — 2026-08-11
- 3.996.43 — 2026-07-29
- 3.996.42 — 2026-07-24
- 3.996.41 — 2026-07-15
- 3.996.40 — 2026-07-14
- 3.996.39 — 2026-07-08
- 3.996.38 — 2026-07-01
- 3.996.37 — 2026-06-30
- 3.996.36 — 2026-06-29
- 3.996.35 — 2026-06-15
- 3.996.34 — 2026-06-10
- 3.996.33 — 2026-06-08
- 3.996.32 — 2026-06-05
- … 288 more at https://npm.io/package/@aws-sdk/signature-v4-multi-region/versions

## README

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

[![NPM version](https://img.shields.io/npm/v/@aws-sdk/signature-v4-multi-region/latest.svg)](https://www.npmjs.com/package/@aws-sdk/signature-v4-multi-region)
[![NPM downloads](https://img.shields.io/npm/dm/@aws-sdk/signature-v4-multi-region.svg)](https://www.npmjs.com/package/@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`](https://www.npmjs.com/package/@aws-sdk/signature-v4).
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](https://github.com/aws/aws-sdk-js-v3/issues/2822) 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`](https://www.npmjs.com/package/@aws-sdk/signature-v4)) for regional requests, and attempts to
call a native implementation of SigV4a signer([`@aws-sdk/signature-v4-crt`](https://www.npmjs.com/package/@aws-sdk/signature-v4))
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 `*`.

---
_Source: https://npm.io/package/@aws-sdk/signature-v4-multi-region · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._