Minting with thirdweb

import 'dotenv/config';
import fs from 'fs';
import path from 'path';

import { createThirdwebClient, getContract, sendTransaction, waitForReceipt, parseEventLogs } from "thirdweb";
import { defineChain } from "thirdweb/chains";
import { privateKeyToAccount } from "thirdweb/wallets";
import { mintTo, transferEvent, getNFT } from "thirdweb/extensions/erc721";
import { upload } from "thirdweb/storage";

function guessMime(p: string) {
  const ext = path.extname(p).toLowerCase();
  if (ext === ".png") return "image/png";
  if (ext === ".jpg" || ext === ".jpeg") return "image/jpeg";
  if (ext === ".webp") return "image/webp";
  if (ext === ".gif") return "image/gif";
  if (ext === ".mp4") return "video/mp4";
  if (ext === ".webm") return "video/webm";
  return "application/octet-stream";
}

async function main() {
  const client = createThirdwebClient({ secretKey: process.env.THIRDWEB_SECRET_KEY! });
  const chain = defineChain(Number(process.env.CHAIN_ID)); // 88888 or 88882
  const account = privateKeyToAccount({ client, privateKey: process.env.PRIVATE_KEY! });

  const contract = getContract({
    client,
    chain,
    address: process.env.CONTRACT_ADDRESS as `0x${string}`,
  });

  // Upload media file to IPFS
  const filePath = process.env.IMAGE_PATH!;
  const buffer = fs.readFileSync(filePath);
  const file = new File([buffer], path.basename(filePath), { type: guessMime(filePath) });

  const [imageUri] = await upload({ client, files: [file] }); // returns ipfs://... 
  // console.log("imageUri:", imageUri);

  // Build & upload metadata.json referencing IPFS imageUri
  const metadata = {
    name: process.env.NAME!,
    description: process.env.DESCRIPTION!,
    image: imageUri
  };
  const metaBlob = new Blob([JSON.stringify(metadata, null, 2)], { type: "application/json" });
  const metaFile = new File([metaBlob], "metadata.json", { type: "application/json" });

  const [metadataUri] = await upload({ client, files: [metaFile] });
  // console.log("metadataUri:", metadataUri);

  // Prepare & send mintTo transaction using the metadata URI
  // mintTo accepts a string to use directly as tokenURI.
  const tx = mintTo({
    contract,
    to: account.address,
    nft: metadataUri, // The tokenURI
  });

  const { transactionHash } = await sendTransaction({ transaction: tx, account });
  //console.log("tx:", transactionHash);

  const receipt = await waitForReceipt({ client, chain, transactionHash });

  // Parse Transfer event to display tokenId
  const events = parseEventLogs({ logs: receipt.logs, events: [transferEvent()] });
  const minted = events.find(e => e.eventName === "Transfer" && e.args.from === "0x0000000000000000000000000000000000000000");
  const tokenId = minted ? (minted.args.tokenId as bigint) : undefined;
  //console.log("tokenId:", tokenId?.toString() ?? "(not found)");

  if (tokenId !== undefined) {
    const nft = await getNFT({ contract, tokenId });
    //console.log("tokenURI (read back):", nft.tokenURI);
  }
}

main().catch((err) => (console.error(err), process.exit(1)));

import 'dotenv/config';
import fs from 'fs';
import path from 'path';

import { createThirdwebClient, getContract, sendTransaction, waitForReceipt, parseEventLogs } from "thirdweb";
import { defineChain } from "thirdweb/chains";
import { privateKeyToAccount } from "thirdweb/wallets";
import { mintTo, transferEvent, getNFT } from "thirdweb/extensions/erc721";
import { upload } from "thirdweb/storage";

function guessMime(p: string) {
  const ext = path.extname(p).toLowerCase();
  if (ext === ".png") return "image/png";
  if (ext === ".jpg" || ext === ".jpeg") return "image/jpeg";
  if (ext === ".webp") return "image/webp";
  if (ext === ".gif") return "image/gif";
  if (ext === ".mp4") return "video/mp4";
  if (ext === ".webm") return "video/webm";
  return "application/octet-stream";
}

// One way to gather all files
function listMediaFiles(dir: string) {
  const allow = new Set([".png", ".jpg", ".jpeg", ".webp", ".gif", ".mp4", ".webm", ".svg"]);
  return fs
    .readdirSync(dir)
    .filter((f) => allow.has(path.extname(f).toLowerCase()))
    .map((f) => path.join(dir, f));
}

async function main() {
  const client = createThirdwebClient({ secretKey: process.env.THIRDWEB_SECRET_KEY! });
  const chain = defineChain(Number(process.env.CHAIN_ID)); // 88888 or 88882
  const account = privateKeyToAccount({ client, privateKey: process.env.PRIVATE_KEY! }); 

  const contract = getContract({
    client,
    chain,
    address: process.env.CONTRACT_ADDRESS as `0x${string}`,
  });

  // Upload media files in a folder to IPFS
  const dirPath = process.env.IMAGES_DIR!;
  const filePaths = listMediaFiles(dirPath);
  if (!filePaths.length) {
    throw new Error(`No media files found in ${dirPath}`);
  }

  const fileObjs = filePaths.map((p) => {
    const buffer = fs.readFileSync(p);
    return new File([buffer], path.basename(p), { type: guessMime(p) });
  });

  const imageUris = await upload({ client, files: fileObjs }); // returns ["ipfs://...", ...]
  //console.log("Uploaded images to IPFS:", imageUris.length, "files");

  // Build & upload each metadata.json referencing its imageUri
  // Uses NAME and DESCRIPTION envs; names become "<NAME> #<index>"
  const namePrefix = process.env.NAME!;
  const description = process.env.DESCRIPTION!;

  // Create an array of File objects for metadata JSONs
  const metaFiles = imageUris.map((imageUri, i) => {
    const metadata = {
      name: `${namePrefix} #${i + 1}`,
      description,
      image: imageUri
    };
    const metaBlob = new Blob([JSON.stringify(metadata, null, 2)], { type: "application/json" });
    return new File([metaBlob], `metadata-${i + 1}.json`, { type: "application/json" });
  });

  const metadataUris = await upload({ client, files: metaFiles }); // ["ipfs://.../metadata-1.json", ...]
  //console.log("Uploaded metadata files to IPFS:", metadataUris.length);

  // Prepare & send mintTo transactions using the metadata URIs (sequential)
  const ZERO = "0x0000000000000000000000000000000000000000";

  for (let i = 0; i < metadataUris.length; i++) {
    const metadataUri = metadataUris[i];

    const tx = mintTo({
      contract,
      to: account.address,
      nft: metadataUri, // The tokenURI
    });

    const { transactionHash } = await sendTransaction({ transaction: tx, account });
    console.log(`[${i + 1}/${metadataUris.length}] tx:`, transactionHash);

    const receipt = await waitForReceipt({ client, chain, transactionHash });

    // Parse Transfer event to get tokenId for this mint
    const events = parseEventLogs({ logs: receipt.logs, events: [transferEvent()] });
    const minted = events.find(
      (e) => e.eventName === "Transfer" && typeof e.args.from === "string" && e.args.from.toLowerCase() === ZERO
    );
    const tokenId = minted ? (minted.args.tokenId as bigint) : undefined;

    // console.log(`[${i + 1}/${metadataUris.length}] tokenId:`, tokenId?.toString() ?? "(not found)");
    if (tokenId !== undefined) {
      const nft = await getNFT({ contract, tokenId });
      // console.log(`[${i + 1}/${metadataUris.length}] tokenURI (read back):`, nft.tokenURI);
    }
  }
}

main().catch((err) => (console.error(err), process.exit(1)));