recacheman-memory

library2.1.0jsnpmunverified

In-memory caching library for Node.js, also usable as a cache engine for recacheman. Version 2.1.0 targets Node.js 20 and 22. Fork of cacheman-memory with active maintenance. Provides promise-based and callback-based API, TTL support, and TypeScript declarations. Differentiated by simplicity and zero external dependencies.

database

npm install recacheman-memory

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · RECACHEMAN-MEMORY

recacheman-memory

databasejavascriptv2.1.0

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

CachemanMemory

✓ import CachemanMemory from 'recacheman-memory'

✗ const { CachemanMemory } = require('recacheman-memory')

ESM default import; CommonJS requires `const CachemanMemory = require('recacheman-memory')`

ESM usage with promises: set, get, and delete a cache entry.

import CachemanMemory from 'recacheman-memory'; const cache = new CachemanMemory(); // Set with TTL (60 seconds) cache.set('mykey', { foo: 'bar' }, 60).then(value => { console.log('Set:', value); return cache.get('mykey'); }).then(value => { console.log('Get:', value); return cache.del('mykey'); }).then(() => { console.log('Deleted'); }).catch(err => { console.error(err); });

Debug

Known issues

breakingVersion 2.x drops support for Node.js < 20. Requires Node 20 or 22.

fix

Upgrade to Node.js 20+ or use recacheman-memory@1.x for older Node versions.

affects: >=2.0.0

deprecatedThe callback-based API is deprecated in favor of promise-based usage.

fix

Use promise chaining or async/await instead of callbacks.

affects: >=2.0.0

gotchaThe `.get()` method returns `null` for missing keys, not `undefined`.

fix

Check for `null` explicitly when retrieving values.

affects: >=1.0.0

gotchaTTL is in seconds, not milliseconds. Setting TTL=1 expires after 1 second.

fix

Convert milliseconds to seconds before passing TTL.

affects: >=1.0.0

Errors

Common errors & fixes

TypeError: cache.set is not a function

Using named import instead of default import in TypeScript/ESM.

fix

Use `import CachemanMemory from 'recacheman-memory'` then `new CachemanMemory()`.

ERR_REQUIRE_ESM: require() of ES Module

Using `require()` for an ESM-only package (v2+ ships ESM).

fix

Use `import` or set `type: "module"` in package.json and use `createRequire` if needed.

cache.getAll is not a function

Method renamed or removed in v2? Actually still present; ensure correct package version.

fix

Check documentation; use `cache.getAll()` exists in v2.

Upgrade

Version history

2.1.0latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

10 hits · last 30 days

node