Create Subdomains

import { Connection, Keypair, Transaction, sendAndConfirmTransaction } from '@solana/web3.js';
import { createSubdomain } from '@bonfida/spl-name-service';
import fs from 'fs';
import dotenv from 'dotenv';

dotenv.config();

const SOLANA_RPC_URL = process.env.RPC_URL!;
const WALLET_PATH = '/Users/metasal/.config/solana/id.json'; // Path to your wallet keypair JSON file
const PARENT_DOMAIN = 'gamblethis.sol';
const SUBDOMAIN = 'example';
const FULL_DOMAIN = `${SUBDOMAIN}.${PARENT_DOMAIN}`;

const createSubdomain = async () => {
    try {
        console.log(`Attempting to register subdomain ${FULL_DOMAIN}...`);

        const connection = new Connection(SOLANA_RPC_URL, 'confirmed');

        const walletKeyData = JSON.parse(fs.readFileSync(WALLET_PATH, 'utf8'));
        const walletKeypair = Keypair.fromSecretKey(
            Uint8Array.from(walletKeyData)
        );

        console.log(`Using wallet: ${walletKeypair.publicKey.toString()}`);

        console.log('Creating subdomain instruction...');
        const instruction = await createSubdomain(
            connection,
            FULL_DOMAIN,           // The full subdomain (e.g., "x.gamblethis.sol")
            walletKeypair.publicKey // The wallet that owns the parent domain
        );

        // Create and sign transaction
        const transaction = new Transaction().add(...instruction);

        // Set recent blockhash and fee payer
        const { blockhash } = await connection.getLatestBlockhash('finalized');
        transaction.recentBlockhash = blockhash;
        transaction.feePayer = walletKeypair.publicKey;

        // Sign and send transaction
        console.log('Sending transaction...');
        const signature = await sendAndConfirmTransaction(
            connection,
            transaction,
            [walletKeypair],
            { commitment: 'confirmed' }
        );

        console.log(`✅ Successfully registered subdomain ${FULL_DOMAIN}!`);
        console.log(`Transaction signature: ${signature}`);
        console.log(`Solana Explorer: https://explorer.solana.com/tx/${signature}`);

    } catch (error) {
        console.error('Error registering subdomain:');
        console.error(error);
        process.exit(1);
    }
};

createSubdomain();