# @libp2p/logger

> A logging component for use in js-libp2p modules

Latest version **6.2.13** (published 2026-08-23) · Apache-2.0 OR MIT license · 0 weekly downloads

## Install

```sh
npm install @libp2p/logger
pnpm add @libp2p/logger
yarn add @libp2p/logger
bun add @libp2p/logger
```

## Health

**Score 75/100 (B)** — status: active.

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

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 6.2.13 |
| Published | 2026-08-23 |
| First published | 2022-02-07 |
| Weekly downloads | 0 |
| License | Apache-2.0 OR MIT |
| TypeScript types | bundled |
| Module format | ESM |
| Dependencies | 5 |
| Unpacked size | 115.3 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 2580 |
| Maintainers | daviddias, alanshaw, achingbrain, vascosantos, npm-service-account-libp2p, jacobheun |
| Keywords | IPFS |

## Links

- npm: https://www.npmjs.com/package/@libp2p/logger
- Repository: https://github.com/libp2p/js-libp2p
- Homepage: https://github.com/libp2p/js-libp2p/tree/main/packages/logger#readme
- Issues: https://github.com/libp2p/js-libp2p/issues
- npm.io page: https://npm.io/package/@libp2p/logger

## Dependencies (5)

- [weald](https://npm.io/package/weald.md) ^1.1.0
- [multiformats](https://npm.io/package/multiformats.md) ^14.0.0
- [@libp2p/interface](https://npm.io/package/@libp2p/interface.md) ^3.3.0
- [interface-datastore](https://npm.io/package/interface-datastore.md) ^10.0.1
- [@multiformats/multiaddr](https://npm.io/package/@multiformats/multiaddr.md) ^13.0.3

## Recent versions

- 6.2.13 (latest) — 2026-08-23
- 6.2.13-776cdedf6 (next) — 2026-09-27
- 6.2.13-e7359e5f6 — 2026-09-27
- 6.2.13-2f63792c7 — 2026-09-27
- 6.2.13-fb139d1c8 — 2026-09-23
- 6.2.13-d91797b55 — 2026-09-16
- 6.2.13-5cb617ae2 — 2026-09-02
- 6.2.13-185d901cd — 2026-09-02
- 6.2.13-cef4d32cf — 2026-08-31
- 6.2.13-ac7305ccf — 2026-08-31
- 6.2.13-87dca02b0 — 2026-08-27
- 6.2.13-4a6c5d11a — 2026-08-27
- 6.2.12-947d304ed — 2026-08-22
- 6.2.12-0967e75f5 — 2026-08-22
- 6.2.12-4dae661b4 — 2026-08-22
- … 886 more at https://npm.io/package/@libp2p/logger/versions

## README

# @libp2p/logger

[![libp2p.io](https://img.shields.io/badge/project-libp2p-yellow.svg?style=flat-square)](http://libp2p.io/)
[![Discuss](https://img.shields.io/discourse/https/discuss.libp2p.io/posts.svg?style=flat-square)](https://discuss.libp2p.io)
[![codecov](https://img.shields.io/codecov/c/github/libp2p/js-libp2p.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p)
[![CI](https://img.shields.io/github/actions/workflow/status/libp2p/js-libp2p/main.yml?branch=main\&style=flat-square)](https://github.com/libp2p/js-libp2p/actions/workflows/main.yml?query=branch%3Amain)

> A logging component for use in js-libp2p modules

# About

<!--

!IMPORTANT!

Everything in this README between "# About" and "# Install" is automatically
generated and will be overwritten the next time the doc generator is run.

To make changes to this section, please update the @packageDocumentation section
of src/index.js or src/index.ts

To experiment with formatting, please run "npm run docs" from the root of this
repo and examine the changes made.

-->

A logger for libp2p based on [weald](https://www.npmjs.com/package/weald), a TypeScript port of the venerable [debug](https://www.npmjs.com/package/debug) module.

## Example

```TypeScript
import { logger } from '@libp2p/logger'

const log = logger('libp2p:my:component:name')

try {
  // an operation
  log('something happened: %s', 'it was ok')
} catch (err) {
  log.error('something bad happened: %e', err)
}

log('with this peer: %p', {})
log('and this base58btc: %b', Uint8Array.from([0, 1, 2, 3]))
log('and this base32: %t', Uint8Array.from([4, 5, 6, 7]))
```

```console
$ DEBUG=libp2p:* node index.js
something happened: it was ok
something bad happened: <stack trace>
with this peer: 12D3Foo
with this base58btc: Qmfoo
with this base32: bafyfoo
```

# Install

```console
$ npm i @libp2p/logger
```

## Browser `<script>` tag

Loading this module through a script tag will make its exports available as `Libp2pLogger` in the global namespace.

```html
<script src="https://unpkg.com/@libp2p/logger/dist/index.min.js"></script>
```

# API Docs

- <https://libp2p.github.io/js-libp2p/modules/_libp2p_logger.html>

# License

Licensed under either of

- Apache 2.0, ([LICENSE-APACHE](https://github.com/libp2p/js-libp2p/blob/main/packages/logger/LICENSE-APACHE) / <http://www.apache.org/licenses/LICENSE-2.0>)
- MIT ([LICENSE-MIT](https://github.com/libp2p/js-libp2p/blob/main/packages/logger/LICENSE-MIT) / <http://opensource.org/licenses/MIT>)

# Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

---
_Source: https://npm.io/package/@libp2p/logger · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._