Resolve $SELF Names to EVM Addresses Using ethers.js

This page provides the integration steps to resolve $SELF names to Ethereum Virtual Machine (EVM) addresses using ethers.js.

Prerequisites

Ensure you have Node.js installed in your environment.

For the latest contract addresses and ABIs, please refer to our Contract Addresses and Contract ABIs pages.

Integration Steps

Project Initialization

Initialize a new Node.js project in your desired directory:
```
npm init -y
```
Install ethers.js:
```
npm i ethers@5.7.2
```
Update package.json to enable ES6 import/export:
```
{
  "type": "module"
}
```
Create a file named index.js. Ensure your project structure is as follows:
```
- node_modules/
- package.json
- package-lock.json
- index.js
```

Complete Code Example

Here's the complete script that you can copy and use:

import { ethers } from "ethers";
import { keccak256, toUtf8Bytes } from "ethers/lib/utils.js";

const selfNftAbi = [
{
 "inputs": [{"internalType": "uint256", "name": "tokenId", "type": "uint256"}],
 "name": "ownerOf",
 "outputs": [{"internalType": "address", "name": "", "type": "address"}],
 "stateMutability": "view",
 "type": "function"
}
];

const SELF_NFT_ADDRESS = "0x125Bb13F77f3565d421bD22e92aaFfC795D97a72";
const BSC_RPC_URL = "https://bsc-dataseed1.binance.org/";
const NAME_TO_RESOLVE = "ricomaverick";

const provider = new ethers.providers.JsonRpcProvider(BSC_RPC_URL);

async function main() {
  const hashedName = BigInt(keccak256(toUtf8Bytes(NAME_TO_RESOLVE))).toString();
  const contract = new ethers.Contract(SELF_NFT_ADDRESS, selfNftAbi, provider);
  const resolvedName = await contract.ownerOf(hashedName);

  console.log("Resolved Name:", resolvedName);
}

main().catch((error) => {
 console.error(error);
process.exitCode = 1;
});

Running the Script

Execute the script using Node.js:
```
node index.js
```

Make sure you have:

Updated the NAME_TO_RESOLVE constant with the name you want to look up
Installed all dependencies (npm install)

Output

The script outputs the resolved EVM address for the provided name:
```
Resolved Name: 0x383D8ee00c3Ea31dd4eb6e5eCf649Bc9C08D8e31
```