The JavaScript implementation of the libp2p Networking Stack.
### Project status
We've come a long way, but this project is still in Alpha, lots of development is happening, API might change, beware of the Dragons 🐉..
**Want to get started?** Check our [examples folder](/examples). You can check the development status at the [Waffle Board](https://waffle.io/libp2p/js-libp2p).
[](https://waffle.io/libp2p/js-libp2p/metrics/throughput)
[**`Weekly Core Dev Calls`**](https://github.com/ipfs/pm/issues/650)
## Tech Lead
[David Dias](https://github.com/diasdavid/)
## Lead Maintainer
[Jacob Heun](https://github.com/jacobheun/)
## Table of Contents
- [Background](#background)
- [Bundles](#bundles)
- [Usage](#usage)
- [Install](#install)
- [Usage](#usage)
- [API](#api)
- [Events](#events)
- [Development](#development)
- [Tests](#tests)
- [Packages](#packages)
- [Contribute](#contribute)
- [License](#license)
## Background
libp2p is the product of a long and arduous quest to understand the evolution of the Internet networking stack. In order to build P2P applications, devs have long had to made custom ad-hoc solutions to fit their needs, sometimes making some hard assumptions about their runtimes and the state of the network at the time of their development. Today, looking back more than 20 years, we see a clear pattern in the types of mechanisms built around the Internet Protocol, IP, which can be found throughout many layers of the OSI layer system, libp2p distils these mechanisms into flat categories and defines clear interfaces that once exposed, enable other protocols and applications to use and swap them, enabling upgradability and adaptability for the runtime, without breaking the API.
We are in the process of writing better documentation, blog posts, tutorials and a formal specification. Today you can find:
- [libp2p.io](https://libp2p.io)
- [Specification (WIP)](https://github.com/libp2p/specs)
- Talks
- [`libp2p <3 ethereum` at DEVCON2](https://ethereumfoundation.org/devcon/?session=libp2p) [📼 video](https://www.youtube.com/watch?v=HxueJbeMVG4) [slides](https://ethereumfoundation.org/devcon/wp-content/uploads/2016/10/libp2p-HEART-devp2p-IPFS-PLUS-Ethereum-networking.pdf) [📼 demo-1](https://ethereumfoundation.org/devcon/wp-content/uploads/2016/10/libp2p_demo1-1.mp4) [📼 demo-2](https://ethereumfoundation.org/devcon/wp-content/uploads/2016/10/libp2p_demo2-1.mp4)
- Articles
- [The overview of libp2p](https://github.com/libp2p/libp2p#description)
To sum up, libp2p is a "network stack" -- a protocol suite -- that cleanly separates concerns, and enables sophisticated applications to only use the protocols they absolutely need, without giving up interoperability and upgradeability. libp2p grew out of IPFS, but it is built so that lots of people can use it, for lots of different projects.
## Bundles
With its modular nature, libp2p can be found being used in different projects with different sets of features, while preserving the same top level API. `js-libp2p` is only a skeleton and should not be installed directly, if you are looking for a prebundled libp2p stack, please check:
- [libp2p-ipfs-nodejs](https://github.com/ipfs/js-ipfs/tree/master/src/core/runtime/libp2p-nodejs.js) - The libp2p build used by js-ipfs when run in Node.js
- [libp2p-ipfs-browser](https://github.com/ipfs/js-ipfs/tree/master/src/core/runtime/libp2p-browser.js) - The libp2p build used by js-ipfs when run in a Browser (that supports WebRTC)
If you have developed a libp2p bundle, please consider submitting it to this list so that it can be found easily by the users of libp2p.
## Install
Again, as noted above, this module is only a skeleton and should not be used directly other than libp2p bundle implementors that want to extend its code.
```sh
npm install --save libp2p
```
## Usage
### [Tutorials and Examples](/examples)
You can find multiple examples on the [examples folder](/examples) that will guide you through using libp2p for several scenarios.
### Creating your own libp2p bundle
The libp2p module acts as a glue for every libp2p module that you can use top create your own libp2p bundle. Creating your own libp2p bundle gives you a lot of freedom when it comes to customize it with features and default setup. We recommend creating your own libp2p bundle for the app you are developing that takes in account your needs (e.g. for a browser working version of libp2p that acts as the network layer of IPFS, we have a built one that leverages the Browser transports).
**Example:**
```JavaScript
// Creating a bundle that adds:
// transport: websockets + tcp
// stream-muxing: spdy & mplex
// crypto-channel: secio
// discovery: multicast-dns
const libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const WS = require('libp2p-websockets')
const SPDY = require('libp2p-spdy')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const MulticastDNS = require('libp2p-mdns')
const DHT = require('libp2p-kad-dht')
const defaultsDeep = require('@nodeutils/defaults-deep')
const Protector = require('libp2p-pnet')
const DelegatedPeerRouter = require('libp2p-delegated-peer-routing')
const DelegatedContentRouter = require('libp2p-delegated-content-routing')
class Node extends libp2p {
constructor (_options) {
const peerInfo = _options.peerInfo
const defaults = {
// The libp2p modules for this libp2p bundle
modules: {
transport: [
TCP,
new WS() // It can take instances too!
],
streamMuxer: [
SPDY,
MPLEX
],
connEncryption: [
SECIO
],
/** Encryption for private networks. Needs additional private key to work **/
// connProtector: new Protector(/*protector specific opts*/),
/** Enable custom content routers, such as delegated routing **/
// contentRouting: [
// new DelegatedContentRouter(peerInfo.id)
// ],
/** Enable custom peer routers, such as delegated routing **/
// peerRouting: [
// new DelegatedPeerRouter()
// ],
peerDiscovery: [
MulticastDNS
],
dht: DHT // DHT enables PeerRouting, ContentRouting and DHT itself components
},
// libp2p config options (typically found on a config.json)
config: { // The config object is the part of the config that can go into a file, config.json.
peerDiscovery: {
mdns: { // mdns options
interval: 1000, // ms
enabled: true
},
webrtcStar: { // webrtc-star options
interval: 1000, // ms
enabled: false
}
// .. other discovery module options.
},
relay: { // Circuit Relay options
enabled: true,
hop: {
enabled: false,
active: false
}
},
dht: {
kBucketSize: 20,
enabledDiscovery: true // Allows to disable discovery (enabled by default)
},
// Enable/Disable Experimental features
EXPERIMENTAL: { // Experimental features ("behind a flag")
pubsub: false,
dht: false
}
}
}
// overload any defaults of your bundle using https://github.com/nodeutils/defaults-deep
super(defaultsDeep(_options, defaults))
}
}
// Now all the nodes you create, will have TCP, WebSockets, SPDY, MPLEX, SECIO and MulticastDNS support.
```
### API
#### Create a Node - `new libp2p.Node(options)`
> Creates an instance of the libp2p.Node.
Required keys in the `options` object:
- `peerInfo`: instance of [PeerInfo][] that contains the [PeerId][], Keys and [multiaddrs][multiaddr] of the libp2p Node.
#### `libp2p.start(callback)`
> Start the libp2p Node.
`callback` following signature `function (err) {}`, where `err` is an Error in case starting the node fails.
#### `libp2p.stop(callback)`
> Stop the libp2p Node.
`callback` following signature `function (err) {}`, where `err` is an Error in case stopping the node fails.
#### `libp2p.dial(peer, callback)`
> Dials to another peer in the network, establishes the connection.
- `peer`: can be an instance of [PeerInfo][], [PeerId][], [multiaddr][], or a multiaddr string
- `callback` following signature `function (err, conn) {}`, where `err` is an Error in of failure to dial the connection and `conn` is a [Connection][] instance in case of a protocol selected, if not it is undefined.
#### `libp2p.dialProtocol(peer, protocol, callback)`
> Dials to another peer in the network and selects a protocol to talk with that peer.
- `peer`: can be an instance of [PeerInfo][], [PeerId][], [multiaddr][], or a multiaddr string
- `protocol`: String that defines the protocol (e.g '/ipfs/bitswap/1.1.0')
- `callback`: Function with signature `function (err, conn) {}`, where `conn` is a [Connection](https://github.com/libp2p/interface-connection) object
`callback` following signature `function (err, conn) {}`, where `err` is an Error in of failure to dial the connection and `conn` is a [Connection][] instance in case of a protocol selected, if not it is undefined.
#### `libp2p.dialFSM(peer, protocol, callback)`
> Behaves like `.dial` and `.dialProtocol` but calls back with a Connection State Machine
- `peer`: can be an instance of [PeerInfo][], [PeerId][], [multiaddr][], or a multiaddr string
- `protocol`: an optional String that defines the protocol (e.g '/ipfs/bitswap/1.1.0')
- `callback`: following signature `function (err, connFSM) {}`, where `connFSM` is a [Connection State Machine](https://github.com/libp2p/js-libp2p-switch#connection-state-machine)
#### `libp2p.hangUp(peer, callback)`
> Closes an open connection with a peer, graciously.
- `peer`: can be an instance of [PeerInfo][], [PeerId][] or [multiaddr][]
`callback` following signature `function (err) {}`, where `err` is an Error in case stopping the node fails.
#### `libp2p.peerRouting.findPeer(id, options, callback)`
> Looks up for multiaddrs of a peer in the DHT
- `id`: instance of [PeerId][]
- `options`: object of options
- `options.maxTimeout`: Number milliseconds
#### `libp2p.contentRouting.findProviders(key, options, callback)`
- `key`: Buffer
- `options`: object of options
- `options.maxTimeout`: Number milliseconds
- `options.maxNumProviders` maximum number of providers to find
#### `libp2p.contentRouting.provide(key, callback)`
- `key`: Buffer
#### `libp2p.handle(protocol, handlerFunc [, matchFunc])`
> Handle new protocol
- `protocol`: String that defines the protocol (e.g '/ipfs/bitswap/1.1.0')
- `handlerFunc`: following signature `function (protocol, conn) {}`, where `conn` is a [Connection](https://github.com/libp2p/interface-connection) object
- `matchFunc`: Function for matching on protocol (exact matching, semver, etc). Default to exact match.
#### `libp2p.unhandle(protocol)`
> Stop handling protocol
- `protocol`: String that defines the protocol (e.g '/ipfs/bitswap/1.1.0')
#### Events
##### `libp2p.on('start', () => {})`
> Libp2p has started, along with all its services.
##### `libp2p.on('stop', () => {})`
> Libp2p has stopped, along with all its services.
##### `libp2p.on('error', (err) => {})`
> An error has occurred
- `err`: instance of `Error`
##### `libp2p.on('peer:discovery', (peer) => {})`
> Peer has been discovered.
- `peer`: instance of [PeerInfo][]
##### `libp2p.on('peer:connect', (peer) => {})`
> We connected to a new peer
- `peer`: instance of [PeerInfo][]
##### `libp2p.on('peer:disconnect', (peer) => {})`
> We disconnected from Peer
- `peer`: instance of [PeerInfo][]
#### `libp2p.isStarted()`
> Check if libp2p is started
#### `libp2p.ping(peer [, options], callback)`
> Ping a node in the network
#### `libp2p.peerBook`
> PeerBook instance of the node
#### `libp2p.peerInfo`
> PeerInfo instance of the node
#### `libp2p.pubsub`
> Same API as IPFS PubSub, defined in the [CORE API Spec](https://github.com/ipfs/interface-ipfs-core/blob/master/SPEC/PUBSUB.md). Just replace `ipfs` by `libp2p` and you are golden.
---------------------
`DHT methods also exposed for the time being`
#### `libp2p.dht.put(key, value, callback)`
- `key`: Buffer
- `value`: Buffer
#### `libp2p.dht.get(key, options, callback)`
- `key`: Buffer
- `options`: object of options
- `options.maxTimeout`: Number milliseconds
#### `libp2p.dht.getMany(key, nVals, options, callback)`
- `key`: Buffer
- `nVals`: Number
- `options`: object of options
- `options.maxTimeout`: Number milliseconds
[PeerInfo]: https://github.com/libp2p/js-peer-info
[PeerId]: https://github.com/libp2p/js-peer-id
[PeerBook]: https://github.com/libp2p/js-peer-book
[multiaddr]: https://github.com/multiformats/js-multiaddr
[Connection]: https://github.com/libp2p/interface-connection
-------
### Switch Stats API
##### `libp2p.stats.emit('update')`
Every time any stat value changes, this object emits an `update` event.
#### Global stats
##### `libp2p.stats.global.snapshot`
Should return a stats snapshot, which is an object containing the following keys and respective values:
- dataSent: amount of bytes sent, [Big](https://github.com/MikeMcl/big.js#readme) number
- dataReceived: amount of bytes received, [Big](https://github.com/MikeMcl/big.js#readme) number
##### `libp2p.stats.global.movingAverages`
Returns an object containing the following keys:
- dataSent
- dataReceived
Each one of them contains an object that has a key for each interval (`60000`, `300000` and `900000` miliseconds).
Each one of these values is [an exponential moving-average instance](https://github.com/pgte/moving-average#readme).
#### Per-transport stats
##### `libp2p.stats.transports()`
Returns an array containing the tags (string) for each observed transport.
##### `libp2p.stats.forTransport(transportTag).snapshot`
Should return a stats snapshot, which is an object containing the following keys and respective values:
- dataSent: amount of bytes sent, [Big](https://github.com/MikeMcl/big.js#readme) number
- dataReceived: amount of bytes received, [Big](https://github.com/MikeMcl/big.js#readme) number
##### `libp2p.stats.forTransport(transportTag).movingAverages`
Returns an object containing the following keys:
dataSent
dataReceived
Each one of them contains an object that has a key for each interval (`60000`, `300000` and `900000` miliseconds).
Each one of these values is [an exponential moving-average instance](https://github.com/pgte/moving-average#readme).
#### Per-protocol stats
##### `libp2p.stats.protocols()`
Returns an array containing the tags (string) for each observed protocol.
##### `libp2p.stats.forProtocol(protocolTag).snapshot`
Should return a stats snapshot, which is an object containing the following keys and respective values:
- dataSent: amount of bytes sent, [Big](https://github.com/MikeMcl/big.js#readme) number
- dataReceived: amount of bytes received, [Big](https://github.com/MikeMcl/big.js#readme) number
##### `libp2p.stats.forProtocol(protocolTag).movingAverages`
Returns an object containing the following keys:
- dataSent
- dataReceived
Each one of them contains an object that has a key for each interval (`60000`, `300000` and `900000` miliseconds).
Each one of these values is [an exponential moving-average instance](https://github.com/pgte/moving-average#readme).
#### Per-peer stats
##### `libp2p.stats.peers()`
Returns an array containing the peerIDs (B58-encoded string) for each observed peer.
##### `libp2p.stats.forPeer(peerId:String).snapshot`
Should return a stats snapshot, which is an object containing the following keys and respective values:
- dataSent: amount of bytes sent, [Big](https://github.com/MikeMcl/big.js#readme) number
- dataReceived: amount of bytes received, [Big](https://github.com/MikeMcl/big.js#readme) number
##### `libp2p.stats.forPeer(peerId:String).movingAverages`
Returns an object containing the following keys:
- dataSent
- dataReceived
Each one of them contains an object that has a key for each interval (`60000`, `300000` and `900000` miliseconds).
Each one of these values is [an exponential moving-average instance](https://github.com/pgte/moving-average#readme).
#### Stats update interval
Stats are not updated in real-time. Instead, measurements are buffered and stats are updated at an interval. The maximum interval can be defined through the `Switch` constructor option `stats.computeThrottleTimeout`, defined in miliseconds.
### Private Networks
#### Enforcement
Libp2p provides support for connection protection, such as for private networks. You can enforce network protection by setting the environment variable `LIBP2P_FORCE_PNET=1`. When this variable is on, if no protector is set via `options.connProtector`, Libp2p will throw an error upon creation.
#### Protectors
Some available network protectors:
* [libp2p-pnet](https://github.com/libp2p/js-libp2p-pnet)
## Development
**Clone and install dependencies:**
```sh
> git clone https://github.com/ipfs/js-ipfs.git
> cd js-ipfs
> npm install
```
### Tests
#### Run unit tests
```sh
# run all the unit tsts
> npm test
# run just Node.js tests
> npm run test:node
# run just Browser tests (Chrome)
> npm run test:browser
```
#### Run interop tests
```sh
N/A
```
#### Run benchmark tests
```sh
N/A
```
### Packages
List of packages currently in existence for libp2p
> This table is generated using the module `package-table` with `package-table --data=package-list.json`.
| Package | Version | Deps | CI | Coverage | Lead Maintainer |
| ---------|---------|---------|---------|---------|--------- |
| **Libp2p** |
| [`interface-libp2p`](//github.com/libp2p/interface-libp2p) | [](//github.com/libp2p/interface-libp2p/releases) | [](https://david-dm.org/libp2p/interface-libp2p) | N/A | [](https://codecov.io/gh/libp2p/interface-libp2p) | N/A |
| [`libp2p`](//github.com/libp2p/js-libp2p) | [](//github.com/libp2p/js-libp2p/releases) | [](https://david-dm.org/libp2p/js-libp2p) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **Connection** |
| [`interface-connection`](//github.com/libp2p/interface-connection) | [](//github.com/libp2p/interface-connection/releases) | [](https://david-dm.org/libp2p/interface-connection) | N/A | [](https://codecov.io/gh/libp2p/interface-connection) | N/A |
| **Transport** |
| [`interface-transport`](//github.com/libp2p/interface-transport) | [](//github.com/libp2p/interface-transport/releases) | [](https://david-dm.org/libp2p/interface-transport) | N/A | [](https://codecov.io/gh/libp2p/interface-transport) | N/A |
| [`libp2p-tcp`](//github.com/libp2p/js-libp2p-tcp) | [](//github.com/libp2p/js-libp2p-tcp/releases) | [](https://david-dm.org/libp2p/js-libp2p-tcp) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-tcp/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-tcp) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-udp`](//github.com/libp2p/js-libp2p-udp) | [](//github.com/libp2p/js-libp2p-udp/releases) | [](https://david-dm.org/libp2p/js-libp2p-udp) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-udp) | N/A |
| [`libp2p-udt`](//github.com/libp2p/js-libp2p-udt) | [](//github.com/libp2p/js-libp2p-udt/releases) | [](https://david-dm.org/libp2p/js-libp2p-udt) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-udt) | N/A |
| [`libp2p-utp`](//github.com/libp2p/js-libp2p-utp) | [](//github.com/libp2p/js-libp2p-utp/releases) | [](https://david-dm.org/libp2p/js-libp2p-utp) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-utp/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-utp) | N/A |
| [`libp2p-webrtc-direct`](//github.com/libp2p/js-libp2p-webrtc-direct) | [](//github.com/libp2p/js-libp2p-webrtc-direct/releases) | [](https://david-dm.org/libp2p/js-libp2p-webrtc-direct) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-webrtc-direct/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-webrtc-direct) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-webrtc-star`](//github.com/libp2p/js-libp2p-webrtc-star) | [](//github.com/libp2p/js-libp2p-webrtc-star/releases) | [](https://david-dm.org/libp2p/js-libp2p-webrtc-star) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-webrtc-star/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-websockets`](//github.com/libp2p/js-libp2p-websockets) | [](//github.com/libp2p/js-libp2p-websockets/releases) | [](https://david-dm.org/libp2p/js-libp2p-websockets) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-websockets) | N/A |
| [`libp2p-websocket-star`](//github.com/libp2p/js-libp2p-websocket-star) | [](//github.com/libp2p/js-libp2p-websocket-star/releases) | [](https://david-dm.org/libp2p/js-libp2p-websocket-star) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-websocket-star) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-websocket-star-rendezvous`](//github.com/libp2p/js-libp2p-websocket-star-rendezvous) | [](//github.com/libp2p/js-libp2p-websocket-star-rendezvous/releases) | [](https://david-dm.org/libp2p/js-libp2p-websocket-star-rendezvous) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-websocket-star-rendezvous) | N/A |
| **Crypto Channels** |
| [`libp2p-secio`](//github.com/libp2p/js-libp2p-secio) | [](//github.com/libp2p/js-libp2p-secio/releases) | [](https://david-dm.org/libp2p/js-libp2p-secio) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-secio) | N/A |
| **Stream Muxers** |
| [`interface-stream-muxer`](//github.com/libp2p/interface-stream-muxer) | [](//github.com/libp2p/interface-stream-muxer/releases) | [](https://david-dm.org/libp2p/interface-stream-muxer) | N/A | [](https://codecov.io/gh/libp2p/interface-stream-muxer) | N/A |
| [`libp2p-mplex`](//github.com/libp2p/js-libp2p-mplex) | [](//github.com/libp2p/js-libp2p-mplex/releases) | [](https://david-dm.org/libp2p/js-libp2p-mplex) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-mplex) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-spdy`](//github.com/libp2p/js-libp2p-spdy) | [](//github.com/libp2p/js-libp2p-spdy/releases) | [](https://david-dm.org/libp2p/js-libp2p-spdy) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-spdy/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-spdy) | N/A |
| **Discovery** |
| [`interface-peer-discovery`](//github.com/libp2p/interface-peer-discovery) | [](//github.com/libp2p/interface-peer-discovery/releases) | [](https://david-dm.org/libp2p/interface-peer-discovery) | N/A | [](https://codecov.io/gh/libp2p/interface-peer-discovery) | N/A |
| [`libp2p-bootstrap`](//github.com/libp2p/js-libp2p-bootstrap) | [](//github.com/libp2p/js-libp2p-bootstrap/releases) | [](https://david-dm.org/libp2p/js-libp2p-bootstrap) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-bootstrap/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-bootstrap) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [](//github.com/libp2p/js-libp2p-kad-dht/releases) | [](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-kad-dht/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-mdns`](//github.com/libp2p/js-libp2p-mdns) | [](//github.com/libp2p/js-libp2p-mdns/releases) | [](https://david-dm.org/libp2p/js-libp2p-mdns) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-mdns/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-mdns) | N/A |
| [`libp2p-rendezvous`](//github.com/libp2p/js-libp2p-rendezvous) | [](//github.com/libp2p/js-libp2p-rendezvous/releases) | [](https://david-dm.org/libp2p/js-libp2p-rendezvous) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-rendezvous) | N/A |
| [`libp2p-webrtc-star`](//github.com/libp2p/js-libp2p-webrtc-star) | [](//github.com/libp2p/js-libp2p-webrtc-star/releases) | [](https://david-dm.org/libp2p/js-libp2p-webrtc-star) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-webrtc-star/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-websocket-star`](//github.com/libp2p/js-libp2p-websocket-star) | [](//github.com/libp2p/js-libp2p-websocket-star/releases) | [](https://david-dm.org/libp2p/js-libp2p-websocket-star) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-websocket-star) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **NAT Traversal** |
| [`libp2p-circuit`](//github.com/libp2p/js-libp2p-circuit) | [](//github.com/libp2p/js-libp2p-circuit/releases) | [](https://david-dm.org/libp2p/js-libp2p-circuit) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-circuit/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-circuit) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-nat-mngr`](//github.com/libp2p/js-libp2p-nat-mngr) | [](//github.com/libp2p/js-libp2p-nat-mngr/releases) | [](https://david-dm.org/libp2p/js-libp2p-nat-mngr) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-nat-mngr) | N/A |
| **Data Types** |
| [`peer-book`](//github.com/libp2p/js-peer-book) | [](//github.com/libp2p/js-peer-book/releases) | [](https://david-dm.org/libp2p/js-peer-book) | N/A | [](https://codecov.io/gh/libp2p/js-peer-book) | [Pedro Teixeira](mailto:i@pgte.me) |
| [`peer-id`](//github.com/libp2p/js-peer-id) | [](//github.com/libp2p/js-peer-id/releases) | [](https://david-dm.org/libp2p/js-peer-id) | [](https://ci.ipfs.team/job/libp2p/job/js-peer-id/job/master/) | [](https://codecov.io/gh/libp2p/js-peer-id) | [Pedro Teixeira](mailto:i@pgte.me) |
| [`peer-info`](//github.com/libp2p/js-peer-info) | [](//github.com/libp2p/js-peer-info/releases) | [](https://david-dm.org/libp2p/js-peer-info) | [](https://ci.ipfs.team/job/libp2p/job/js-peer-info/job/master/) | [](https://codecov.io/gh/libp2p/js-peer-info) | N/A |
| **Content Routing** |
| [`interface-content-routing`](//github.com/libp2p/interface-content-routing) | [](//github.com/libp2p/interface-content-routing/releases) | [](https://david-dm.org/libp2p/interface-content-routing) | N/A | [](https://codecov.io/gh/libp2p/interface-content-routing) | N/A |
| [`libp2p-delegated-content-routing`](//github.com/libp2p/js-libp2p-delegated-content-routing) | [](//github.com/libp2p/js-libp2p-delegated-content-routing/releases) | [](https://david-dm.org/libp2p/js-libp2p-delegated-content-routing) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-delegated-content-routing) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [](//github.com/libp2p/js-libp2p-kad-dht/releases) | [](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-kad-dht/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| **Peer Routing** |
| [`interface-peer-routing`](//github.com/libp2p/interface-peer-routing) | [](//github.com/libp2p/interface-peer-routing/releases) | [](https://david-dm.org/libp2p/interface-peer-routing) | N/A | [](https://codecov.io/gh/libp2p/interface-peer-routing) | N/A |
| [`libp2p-delegated-peer-routing`](//github.com/libp2p/js-libp2p-delegated-peer-routing) | [](//github.com/libp2p/js-libp2p-delegated-peer-routing/releases) | [](https://david-dm.org/libp2p/js-libp2p-delegated-peer-routing) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-delegated-peer-routing) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [](//github.com/libp2p/js-libp2p-kad-dht/releases) | [](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-kad-dht/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| **Record Store** |
| [`interface-record-store`](//github.com/libp2p/interface-record-store) | [](//github.com/libp2p/interface-record-store/releases) | [](https://david-dm.org/libp2p/interface-record-store) | N/A | [](https://codecov.io/gh/libp2p/interface-record-store) | N/A |
| [`libp2p-record`](//github.com/libp2p/js-libp2p-record) | [](//github.com/libp2p/js-libp2p-record/releases) | [](https://david-dm.org/libp2p/js-libp2p-record) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-record/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-record) | N/A |
| **Generics** |
| [`libp2p-connection-manager`](//github.com/libp2p/js-libp2p-connection-manager) | [](//github.com/libp2p/js-libp2p-connection-manager/releases) | [](https://david-dm.org/libp2p/js-libp2p-connection-manager) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-connection-manager) | N/A |
| [`libp2p-crypto`](//github.com/libp2p/js-libp2p-crypto) | [](//github.com/libp2p/js-libp2p-crypto/releases) | [](https://david-dm.org/libp2p/js-libp2p-crypto) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-crypto/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-crypto) | [Friedel Ziegelmayer](mailto:dignifiedquire@gmail.com) |
| [`libp2p-crypto-secp256k1`](//github.com/libp2p/js-libp2p-crypto-secp256k1) | [](//github.com/libp2p/js-libp2p-crypto-secp256k1/releases) | [](https://david-dm.org/libp2p/js-libp2p-crypto-secp256k1) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-crypto-secp256k1/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-crypto-secp256k1) | N/A |
| [`libp2p-switch`](//github.com/libp2p/js-libp2p-switch) | [](//github.com/libp2p/js-libp2p-switch/releases) | [](https://david-dm.org/libp2p/js-libp2p-switch) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-switch/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-switch) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **Extensions** |
| [`libp2p-floodsub`](//github.com/libp2p/js-libp2p-floodsub) | [](//github.com/libp2p/js-libp2p-floodsub/releases) | [](https://david-dm.org/libp2p/js-libp2p-floodsub) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-floodsub) | N/A |
| [`libp2p-identify`](//github.com/libp2p/js-libp2p-identify) | [](//github.com/libp2p/js-libp2p-identify/releases) | [](https://david-dm.org/libp2p/js-libp2p-identify) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-identify) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-keychain`](//github.com/libp2p/js-libp2p-keychain) | [](//github.com/libp2p/js-libp2p-keychain/releases) | [](https://david-dm.org/libp2p/js-libp2p-keychain) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-keychain) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-ping`](//github.com/libp2p/js-libp2p-ping) | [](//github.com/libp2p/js-libp2p-ping/releases) | [](https://david-dm.org/libp2p/js-libp2p-ping) | [](https://ci.ipfs.team/job/libp2p/job/js-libp2p-ping/job/master/) | [](https://codecov.io/gh/libp2p/js-libp2p-ping) | N/A |
| [`libp2p-pnet`](//github.com/libp2p/js-libp2p-pnet) | [](//github.com/libp2p/js-libp2p-pnet/releases) | [](https://david-dm.org/libp2p/js-libp2p-pnet) | N/A | [](https://codecov.io/gh/libp2p/js-libp2p-pnet) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **Utilities** |
| [`p2pcat`](//github.com/libp2p/js-p2pcat) | [](//github.com/libp2p/js-p2pcat/releases) | [](https://david-dm.org/libp2p/js-p2pcat) | N/A | [](https://codecov.io/gh/libp2p/js-p2pcat) | N/A |
## Contribute
The libp2p implementation in JavaScript is a work in progress. As such, there are a few things you can do right now to help out:
- Go through the modules and **check out existing issues**. This would be especially useful for modules in active development. Some knowledge of IPFS/libp2p may be required, as well as the infrastructure behind it - for instance, you may need to read up on p2p and more complex operations like muxing to be able to help technically.
- **Perform code reviews**. Most of this has been developed by @diasdavid, which means that more eyes will help a) speed the project along b) ensure quality and c) reduce possible future bugs.
- **Add tests**. There can never be enough tests.
## License
[MIT](LICENSE) © Protocol Labs