rns-js

RNS JavaScript library.

npm i web3 @rsksmart/rns

Types are exposed under '@rsksmart/rns/types'

Or just use it directly in your webpage:

<script src="https://unpkg.com/[email protected]/dist/web3.min.js"></script>
<script src="https://unpkg.com/@rsksmart/[email protected]/lib/rns.min.js"></script>

Don't forget to specify the desired version of the package!

Basic usage

Instance de library:

import Web3 from 'web3'
import RNS from '@rsksmart/rns'
import { ChainId } from '@rsksmart/rns/types'

const web3 = new Web3('https://public-node.rsk.co')
const rns = new RNS(web3)

Get an address:

rns.addr('testing.rsk').then(console.log)

Get Bitcoin address:

rns.addr('testing.rsk', ChainId.BITCOIN).then(console.log)

Check if testing.rsk domain is available:

rns.available('testing.rsk').then(console.log)

Check if example.testing.rsk subdomain is available:

rns.subdomains.available('testing.rsk', 'example').then(console.log)

Reverse lookup: get name of a given address:

rns.reverse('0x0000000000000000000000000000000123456789').then(console.log)

Check out more operations details in the RSK Developers Portal.

Advanced usage

Use Web3 Contract directly

async function myCustomGetOwner(domain) {
  const web3 = new Web3('https://public-node.rsk.co')
  const rns = new RNS(web3)

  await rns.compose()

  const owner = await rns.contracts.registry.methods.owner(domain).call()

  return owner;
}

Resource record implementations

• Contract addresses - EIP-137
• Multicoin addresses - EIP-2304
• Contenthash - EIP-1577

Coins supported:

• BTC (base58check P2PKH and P2SH, and bech32 segwit)
• LTC (base58check P2PHK and P2SH, and bech32 segwit)
• DOGE (base58check P2PKH and P2SH)
• MONA (base58check P2PKH and P2SH, and bech32 segwit)
• DASH (base58check P2PKH and P2SH)
• ETH (checksummed-hex)
• ETC (checksummed-hex)
• RSK (checksummed-hex)
• XDAI (checksummed-hex)
• XRP (base58check-ripple)
• BCH (base58check and cashAddr; decodes to cashAddr)
• BNB (bech32)
• XLM (ed25519 public key)
• ATOM (bech32)
• TRX (base58check)
• NEM (base32)
• EOS
• KSM (ss58)

Content types supported:

• ipfs
• bzz
• onion
• onion3

Run for development

Install dependencies:

git clone [email protected]:rnsdomains/rns-js.git
cd rns-js
npm i

Run tests:

npm test

Try out your development, create a testing project:

# in rns-js folder
npm run build
npm link
cd ..
mkdir rns-js-test
cd rns-js-test
npm init
npm i web3
npm link @rsksmart/rns

Versioning

• master branch point to latest release.
• develop branch contains changes that will apply next release. The first commit after release bumps to next version.
• Other branches (feature branches) point to develop.

Find releases scopes in milestones