@libp2p/webrtc NPM

@libp2p/webrtc

A libp2p transport using WebRTC connections

Install

$ npm i @libp2p/webrtc

Browser `<script>` tag

Loading this module through a script tag will make it's exports available as Libp2pWebrtc in the global namespace.

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

Usage

import { createLibp2p } from 'libp2p'
import { noise } from '@chainsafe/libp2p-noise'
import { multiaddr } from '@multiformats/multiaddr'
import first from 'it-first'
import { pipe } from 'it-pipe'
import { fromString, toString } from 'uint8arrays'
import { webRTC } from '@libp2p/webrtc'

const node = await createLibp2p({
  transports: [webRTC()],
  connectionEncryption: [noise()],
});

await node.start()

const ma =  multiaddr('/ip4/0.0.0.0/udp/56093/webrtc/certhash/uEiByaEfNSLBexWBNFZy_QB1vAKEj7JAXDizRs4_SnTflsQ')
const stream = await node.dialProtocol(ma, ['/my-protocol/1.0.0'])
const message = `Hello js-libp2p-webrtc\n`
const response = await pipe([fromString(message)], stream, async (source) => await first(source))
const responseDecoded = toString(response.slice(0, response.length))

Examples

Examples can be found in the examples folder.

Interfaces

Transport

Browsers can usually only dial, but listen is supported in the WebRTC transport when paired with another listener like CircuitV2, where you listen on a relayed connection. Take a look at index.js for an example.

Connection

interface MultiaddrConnection extends Duplex<Uint8Array> {
  close: (err?: Error) => Promise<void>
  remoteAddr: Multiaddr
  timeline: MultiaddrConnectionTimeline
}

class WebRTCMultiaddrConnection implements MultiaddrConnection { }

Development

Contributions are welcome! The libp2p implementation in JavaScript is a work in progress. As such, there's a few things you can do right now to help out:

Check out the existing issues.
Perform code reviews.
Add tests. There can never be enough tests.
Go through the modules and check out existing issues. This is 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.

Please be aware that all interactions related to libp2p are subject to the IPFS Code of Conduct.

Small note: If editing the README, please conform to the standard-readme specification.

This module leans heavily on (Aegir)[https://github.com/ipfs/aegir] for most of the package.json scripts.

Build

The build script is a wrapper to aegir build. To build this package:

npm run build

The build will be located in the /dist folder.

Protocol Buffers

There is also npm run generate:proto script that uses protoc to populate the generated code directory proto_ts based on *.proto files in src. Don't forget to run this step before build any time you make a change to any of the *.proto files.

Test

To run all tests:

npm test

To run tests for Chrome only:

npm run test:chrome

To run tests for Firefox only:

npm run test:firefox

Lint

Aegir is also used to lint the code, which follows the Standard JS linter. The VS Code plugin for this standard is located at https://marketplace.visualstudio.com/items?itemName=standard.vscode-standard. To lint this repo:

npm run lint

You can also auto-fix when applicable:

npm run lint:fix

Clean

npm run clean

Check Dependencies

npm run deps-check

API Docs

https://libp2p.github.io/js-libp2p/modules/_libp2p_webrtc.html

License

Licensed under either of

Apache 2.0, (LICENSE-APACHE / http://www.apache.org/licenses/LICENSE-2.0)
MIT (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.

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@libp2p/webrtc v4.0.31

@libp2p/webrtc

Table of contents

Install

Browser `<script>` tag

Usage

Examples

Interfaces

Transport

Connection

Development

Build

Protocol Buffers

Test

Lint

Clean

Check Dependencies

API Docs

License

Contribution

@libp2p/webrtc

Table of contents

Install

Browser <script> tag

Usage

Examples

Interfaces

Transport

Connection

Development

Build

Protocol Buffers

Test

Lint

Clean

Check Dependencies

API Docs

License

Contribution

Browser `<script>` tag