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web3-eth-ens

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web3-eth-ens

This package has ENS functions for interacting with Ethereum Name Service.

  • 4.0.9-dev.cf4b93f.0
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
439K
increased by4.16%
Maintainers
4
Weekly downloads
 
Created

What is web3-eth-ens?

The web3-eth-ens package is a part of the Web3.js library that provides functionality for interacting with the Ethereum Name Service (ENS). ENS is a distributed, open, and extensible naming system based on the Ethereum blockchain. It allows users to resolve human-readable names like 'myname.eth' into machine-readable identifiers such as Ethereum addresses, content hashes, and metadata.

What are web3-eth-ens's main functionalities?

Resolving ENS Names to Ethereum Addresses

This feature allows you to resolve a human-readable ENS name to an Ethereum address. The code sample demonstrates how to use the web3-eth-ens package to resolve 'myname.eth' to its corresponding Ethereum address.

const Web3 = require('web3');
const ENS = require('web3-eth-ens');

const web3 = new Web3('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');
const ens = new ENS(web3);

async function resolveENSName(name) {
  try {
    const address = await ens.getAddress(name);
    console.log(`Address for ${name}: ${address}`);
  } catch (error) {
    console.error(`Error resolving ENS name: ${error}`);
  }
}

resolveENSName('myname.eth');

Reverse Resolution (Address to ENS Name)

This feature allows you to perform a reverse resolution, converting an Ethereum address back to its associated ENS name. The code sample demonstrates how to use the web3-eth-ens package to reverse resolve an Ethereum address to its ENS name.

const Web3 = require('web3');
const ENS = require('web3-eth-ens');

const web3 = new Web3('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');
const ens = new ENS(web3);

async function reverseResolveAddress(address) {
  try {
    const name = await ens.getName(address);
    console.log(`ENS name for ${address}: ${name}`);
  } catch (error) {
    console.error(`Error reverse resolving address: ${error}`);
  }
}

reverseResolveAddress('0x1234567890abcdef1234567890abcdef12345678');

Setting ENS Records

This feature allows you to set ENS records, such as associating an ENS name with an Ethereum address. The code sample demonstrates how to use the web3-eth-ens package to set the address for 'myname.eth' to a specified Ethereum address.

const Web3 = require('web3');
const ENS = require('web3-eth-ens');

const web3 = new Web3('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');
const ens = new ENS(web3);

async function setENSRecord(name, address) {
  try {
    const accounts = await web3.eth.getAccounts();
    await ens.setAddress(name, address, { from: accounts[0] });
    console.log(`Set address for ${name} to ${address}`);
  } catch (error) {
    console.error(`Error setting ENS record: ${error}`);
  }
}

setENSRecord('myname.eth', '0x1234567890abcdef1234567890abcdef12345678');

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Package last updated on 27 Feb 2024

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