@universal-lock/memory

In-memory backend for universal-lock. Stores locks in a plain JavaScript object using timestamps for stale detection.

Installation

npm install universal-lock @universal-lock/memory

Usage

ESM

import { lockFactory } from "universal-lock";
import { createBackend } from "@universal-lock/memory";

const lock = lockFactory(createBackend());

const release = await lock.acquire("my-resource");
try {
	// critical section
} finally {
	await release();
}

CommonJS

const { lockFactory } = require("universal-lock");
const { createBackend } = require("@universal-lock/memory");

const lock = lockFactory(createBackend());

Browser (IIFE)

<script src="https://unpkg.com/@universal-lock/memory/dist/index.global.js"></script>
<script src="https://unpkg.com/universal-lock/dist/index.global.js"></script>
<script>
	const lock = UniversalLock.lockFactory(UniversalLockMemory.createBackend());
</script>

API

createBackend()

Creates an in-memory backend instance. No arguments required.

import { createBackend } from "@universal-lock/memory";

const backend = createBackend();

When to Use

• Development and testing
• Single-process Node.js applications
• Prototyping before switching to a distributed backend

Limitations

• Locks are not shared across processes or servers. For distributed locking, use @universal-lock/redis.

License

MIT