# mafmt > A multiaddr validator Latest version **10.0.0** (published 2021-07-07) · MIT license · 0 weekly downloads ## Install ```sh npm install mafmt pnpm add mafmt yarn add mafmt bun add mafmt ``` ## Health **Score 35/100 (D)** — status: abandoned. Positive: has types; no vulnerabilities; high quality score. Warnings: low downloads; no esm support. Negative: abandoned. ## Facts | | | |---|---| | Version | 10.0.0 | | Published | 2021-07-07 | | First published | 2016-03-14 | | Weekly downloads | 0 | | License | MIT | | TypeScript types | bundled | | Module format | CommonJS | | Dependencies | 1 | | Unpacked size | 47.7 KB | | Known vulnerabilities | 0 | | Install scripts | no | | GitHub stars | 15 | | Maintainers | vmx, jacobheun, daviddias, achingbrain, whyrusleeping, vascosantos | | Keywords | multiaddr | ## Links - npm: https://www.npmjs.com/package/mafmt - Repository: https://github.com/multiformats/js-mafmt - Homepage: https://github.com/multiformats/js-mafmt#readme - Issues: https://github.com/multiformats/js-mafmt/issues - npm.io page: https://npm.io/package/mafmt ## Dependencies (1) - [multiaddr](https://npm.io/package/multiaddr.md) ^10.0.0 ## Recent versions - 10.0.0 (latest) — 2021-07-07 - 9.0.0 — 2021-04-11 - 8.0.4 — 2021-01-13 - 8.0.3 — 2021-01-11 - 8.0.2 — 2020-12-28 - 8.0.1 — 2020-10-27 - 8.0.0 — 2020-08-10 - 7.1.0 — 2020-02-06 - 7.0.1 — 2020-01-23 - 7.0.0 — 2019-09-11 - 6.0.10 — 2019-09-11 - 6.0.9 — 2019-09-10 - 6.0.8 — 2019-08-08 - 6.0.7 — 2019-02-26 - 6.0.6 — 2019-02-07 - … 23 more at https://npm.io/package/mafmt/versions ## README js-mafmt ======== [![](https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square)](http://protocol.ai) [![](https://img.shields.io/badge/project-multiformats-blue.svg?style=flat-square)](https://github.com/multiformats/multiformats) [![](https://img.shields.io/badge/freenode-%23ipfs-blue.svg?style=flat-square)](https://webchat.freenode.net/?channels=%23ipfs) [![Dependency Status](https://david-dm.org/multiformats/js-mafmt.svg?style=flat-square)](https://david-dm.org/multiformats/js-mafmt) [![](https://img.shields.io/travis/multiformats/js-mafmt.svg?style=flat-square)](https://travis-ci.com/multiformats/js-mafmt) [![codecov](https://img.shields.io/codecov/c/github/multiformats/js-mafmt.svg?style=flat-square)](https://codecov.io/gh/multiformats/js-mafmt) > Javascript implementation of multiaddr validation ## Lead Maintainer [Vasco Santos](https://github.com/vasco-santos). ## Install ```sh npm install mafmt ``` ## Usage ```js const mafmt = require('mafmt') mafmt.DNS.matches('/dns4/ipfs.io') // true ``` ## API #### `mafmt..matches(multiaddr)` Where `` may be: | `` | Description | Example(s) | | --- | --- | --- | | `DNS` | a "dns4" or "dns6" format multiaddr | `/dnsaddr/ipfs.io` | `DNS4` | a "dns4" format multiaddr | `/dns4/ipfs.io` | | `DNS6` | a "dns6" format multiaddr | `/dns6/protocol.ai/tcp/80` | | `IP` | an "ip4" or "ip6" format multiaddr | `/ip4/127.0.0.1`
`/ip6/fc00::` | | `TCP` | a "tcp" over `IP` format multiaddr | `/ip4/0.0.7.6/tcp/1234` | | `UDP` | a "udp" over `IP` format multiaddr | `/ip4/0.0.7.6/udp/1234` | | `QUIC` | a "quic" over `UDP` format multiaddr | `/ip4/1.2.3.4/udp/1234/quic` | | `UTP` | a "utp" over `UDP` format multiaddr | `/ip4/1.2.3.4/udp/3456/utp` | | `Websockets` | a "ws" over `TCP` or "ws" over `DNS` format multiaddr | `/ip4/1.2.3.4/tcp/3456/ws`
`/dnsaddr/ipfs.io/ws` | | `WebSocketsSecure` | a "wss" over `TCP` or "wss" over `DNS` format multiaddr | `/ip6/::/tcp/0/wss`
`/dnsaddr/ipfs.io/wss` | | `HTTP` | a "http" over `TCP` or `DNS` or "http" over `DNS` format multiaddr | `/ip4/127.0.0.1/tcp/90/http`
`/dnsaddr/ipfs.io/http` | | `HTTPS` | a "https" over `TCP` or `DNS` or "https" over `DNS` format multiaddr | `/ip4/127.0.0.1/tcp/90/https`
`/dnsaddr/ipfs.io/https` | | `WebRTCStar` | a "p2p" over "p2p-webrtc-star" over `Websockets` or "p2p" over "p2p-webrtc-star" over `WebSocketsSecure` format multiaddr | `/dnsaddr/ipfs.io/wss/p2p-webrtc-star/p2p/QmcgpsyWgH8Y8ajJz1Cu72KnS5uo2Aa2LpzU7kinSoooo4` | | `WebSocketStar` | a "p2p" over "p2p-websocket-star" over `Websockets` or "p2p" over "p2p-websocket-star" over `WebSocketsSecure` or "p2p-websocket-star" over `Websockets` or "p2p-websocket-star" over `WebSocketsSecure` format multiaddr | `/ip4/1.2.3.4/tcp/3456/ws/p2p-websocket-star`
`/dnsaddr/localhost/ws/p2p-websocket-star/p2p/QmcgpsyWgH8Y8ajJz1Cu72KnS5uo2Aa2LpzU7kinSoooo4` | | `WebRTCDirect` | a "p2p-webrtc-direct" over `HTTP` or "p2p-webrtc-direct" over `HTTPS` format multiaddr | `/ip4/1.2.3.4/tcp/3456/http/p2p-webrtc-direct` | | `Reliable` | a `WebSockets` or `WebSocketsSecure` or `HTTP` or `HTTPS` or `WebRTCStar` or `WebRTCDirect` or `TCP` or `UTP` or `QUIC` format multiaddr | `/dnsaddr/ipfs.io/wss` | | `Circuit` | | `/p2p/QmcgpsyWgH8Y8ajJz1Cu72KnS5uo2Aa2LpzU7kinSoooo4/p2p-circuit/p2p/QmUjNmr8TgJCn1Ao7DvMy4cjoZU15b9bwSCBLE3vwXiwgj` | | `P2P` | "p2p", aka "ipfs", over `Reliable` or `WebRTCStar` or "p2p" format multiaddr | `/p2p/QmcgpsyWgH8Y8ajJz1Cu72KnS5uo2Aa2LpzU7kinSoooo4`
`/ip4/127.0.0.1/tcp/20008/ws/p2p/QmUjNmr8TgJCn1Ao7DvMy4cjoZU15b9bwSCBLE3vwXiwgj` | Where `multiaddr` may be: * a [Multiaddr](https://www.npmjs.com/package/multiaddr) * a String * a [Uint8Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array) Returns `true`/`false` --- _Source: https://npm.io/package/mafmt · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._