mint-nft.ts

import { Metaplex, keypairIdentity, bundlrStorage } from '@metaplex-foundation/js';
import { Connection, Keypair, clusterApiUrl } from '@solana/web3.js';
import { readFileSync } from 'fs';

async function sleep(delay: number) {
    return new Promise((resolve) => {
        setTimeout(() => resolve(null), delay);
    });
}

function kpFromFile(): Keypair {
    const kpBytes = JSON.parse(readFileSync("/Users/<your username>/.config/solana/id.json").toString());
    return Keypair.fromSecretKey(Uint8Array.from(kpBytes));
}

async function main() {
    // const kp = Keypair.generate();
    const kp = kpFromFile();
    const connection = new Connection(clusterApiUrl("testnet"), "confirmed");
    const mpl = Metaplex.make(connection).use(keypairIdentity(kp)).use(bundlrStorage());

    // const txId = await connection.requestAirdrop(kp.publicKey, 1e9);
    // console.log(kp.publicKey.toString(), "received 1 lamport:", txId);

    await sleep(1000);

    const nftTask = mpl.nfts().create({
        name: "Testy McTestFace",
        uri: "<JSON_URI>",
        sellerFeeBasisPoints: 500,
    });
    const nftResult = await nftTask.run();
    console.log("Created nft:", nftResult.nft.mint.address.toString(), nftResult.tokenAddress.toString(), nftResult);
}

main();