# @onflow/util-actor

> A mechanism for forcing order/transitions of scoped async state

Latest version **1.3.5** (published 2025-09-08) · Apache-2.0 license · 0 weekly downloads

## Install

```sh
npm install @onflow/util-actor
pnpm add @onflow/util-actor
yarn add @onflow/util-actor
bun add @onflow/util-actor
```

## Health

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

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

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 1.3.5 |
| Published | 2025-09-08 |
| First published | 2020-07-17 |
| Weekly downloads | 0 |
| License | Apache-2.0 |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Dependencies | 2 |
| Unpacked size | 91.5 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 333 |
| Author | Flow Foundation |
| Maintainers | han210, dapperj, dapper_labs, jeffreydoyle, harry.eth, turbolent_flow, chasefleming, gregsantos, gregorggg, jribbink, bthaile, nialexsan, sisyphussmiling, lmcmze |

## Links

- npm: https://www.npmjs.com/package/@onflow/util-actor
- Repository: https://github.com/onflow/fcl-js
- Homepage: https://flow.com
- Issues: https://github.com/onflow/fcl-js/issues
- npm.io page: https://npm.io/package/@onflow/util-actor

## Dependencies (2)

- [@babel/runtime](https://npm.io/package/@babel/runtime.md) ^7.25.7
- [queue-microtask](https://npm.io/package/queue-microtask.md) 1.2.3

## Recent versions

- 1.3.5 (latest) — 2025-09-08
- 1.3.4-alpha.0 (alpha) — 2024-10-22
- 1.3.2-event-streaming.1 (event-streaming) — 2023-11-29
- 1.3.0-typescript.0 (typescript) — 2023-11-01
- 1.3.4 — 2024-11-27
- 1.3.3 — 2024-06-07
- 1.3.2 — 2024-03-26
- 1.3.2-alpha.2 — 2023-12-07
- 1.3.2-alpha.1 — 2023-12-07
- 1.3.2-alpha.0 — 2023-12-04
- 1.3.2-event-streaming.0 — 2023-11-29
- 1.3.1 — 2023-11-09
- 1.3.0 — 2023-10-22
- 1.3.0-alpha.0 — 2023-08-04
- 1.2.0 — 2023-06-02
- … 16 more at https://npm.io/package/@onflow/util-actor/versions

## README

### Actor

> Asynchronous self-contained isolated state, can only be comunicated with via a first-in/first-out message queue called a mailbox.

Please see the tests for examples.

As this is an unstable internal tool used by the SDK and FCl, using it directly from your code is a massive risk.

We will have documentation once we consider this utility stable.

---
_Source: https://npm.io/package/@onflow/util-actor · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._