# @azure/functions-extensions-base

> Node.js Azure Storage Client extension implementations for Azure Functions

Latest version **0.3.0** (published 2026-04-07) · MIT license · 0 weekly downloads

## Install

```sh
npm install @azure/functions-extensions-base
pnpm add @azure/functions-extensions-base
yarn add @azure/functions-extensions-base
bun add @azure/functions-extensions-base
```

## Health

**Score 65/100 (B)** — status: active.

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

Warnings: low downloads; pre 1.0.

## Facts

| | |
|---|---|
| Version | 0.3.0 |
| Published | 2026-04-07 |
| First published | 2025-05-13 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Node | >=18.0 |
| Dependencies | 0 |
| Unpacked size | 45.3 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 2 |
| Author | Microsoft |
| Maintainers | pgopa, paulbatum, facavalcante, ahmelsayed, mahoeger, anatolib, gaaguiar, victoriahall, microsoft-oss-releases, azure-sdk, swapnilnagar, microsoft1es |
| Keywords | azure, azure-functions, serverless, blob, storage |

## Links

- npm: https://www.npmjs.com/package/@azure/functions-extensions-base
- Repository: https://github.com/Azure/azure-functions-nodejs-extensions
- Homepage: https://github.com/Azure/azure-functions-nodejs-extensions-base#readme
- Issues: https://github.com/Azure/azure-functions-nodejs-extensions/issues
- npm.io page: https://npm.io/package/@azure/functions-extensions-base

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## Recent versions

- 0.3.0 (latest) — 2026-04-07
- 0.2.0 — 2025-11-04
- 0.2.0-preview — 2025-07-22
- 0.1.0-preview — 2025-05-13

## README

# Azure Functions Node.js Extensions Base

The Azure Functions Node.js Extensions Base Library provides core interfaces, classes, and utilities for building extension components for Azure Functions in JavaScript and TypeScript to recognize and bind to SDK types. **It is not intended for direct use**. Instead, please reference one of the extending packages:

[@azure/functions-extensions-bindings-blob](https://github.com/Azure/azure-functions-nodejs-extensions/tree/main/azure-functions-nodejs-extensions-blob)

## Features

-   **Resource Factory Resolver**: Core singleton class for registering and retrieving Azure resource factories
-   **Model Binding Support**: Types and interfaces for binding Azure resources to Function parameters
-   **Type-Safe Bindings**: Type definitions for supported Azure binding types
-   **Extension Registration**: Foundation for registering extensions in Azure Functions

## Integration with Azure Functions

This library serves as a foundation for Azure Functions extensions that provide additional bindings or integration capabilities. For examples of extensions built on this library, see:

-   [@azure/functions-extensions-bindings-blob](https://github.com/Azure/azure-functions-nodejs-extensions/tree/main/azure-functions-nodejs-extensions-blob)

## License

This project is licensed under the MIT License. See the [LICENSE](./LICENSE) file for details.

## Resources

-   [Azure Functions Documentation](https://learn.microsoft.com/azure/azure-functions/)
-   [Azure SDK for JavaScript](https://github.com/Azure/azure-sdk-for-js)

---

## Reporting Issues

If you find a bug or have a suggestion for improvement, please [open an issue](https://github.com/Azure/azure-functions-nodejs-extensions/issues) on our GitHub repository.

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_Source: https://npm.io/package/@azure/functions-extensions-base · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._