2-wine-mint.js

import {
  TokenCreateTransaction,
  TokenMintTransaction,
  TokenType,
  TokenSupplyType,
  PrivateKey,
  Client,
  AccountId,
  Hbar,
} from "@hashgraph/sdk";
import dotenv from "dotenv";

dotenv.config();

async function main() {
  const operatorId = AccountId.fromString(process.env.OPERATOR_ID);
  const operatorKey = PrivateKey.fromString(process.env.OPERATOR_PVKEY);

  // If we weren't able to grab it, we should throw a new error
  if (operatorId == null || operatorKey == null) {
    throw new Error(
      "Environment variables operatorId and operatorKey must be present"
    );
  }

  const client = Client.forTestnet().setOperator(operatorId, operatorKey);

  // Generate a supply key
  const supplyKey = PrivateKey.generateED25519();

  try {
    // Create a non fungible token
    let nftCreateTx = new TokenCreateTransaction()
      .setTokenName("Petrus")
      .setTokenSymbol("P1996")
      .setTokenType(TokenType.NonFungibleUnique)
      .setDecimals(0)
      .setInitialSupply(0)
      .setSupplyType(TokenSupplyType.Finite)
      .setMaxSupply(1)
      .setTreasuryAccountId(operatorId)
      .setSupplyKey(supplyKey)
      .freezeWith(client);

    // Sign and execute create token transaction
    const nftCreateTxSigned = await nftCreateTx.sign(operatorKey);
    const nftCreateTxResponse = await nftCreateTxSigned.execute(client);

    // Get receipt for create token transaction
    const nftCreateTxReceipt = await nftCreateTxResponse.getReceipt(client);
    console.log(
      `Status of NFT create transction: ${nftCreateTxReceipt.status.toString()}`
    );

    // Get token id
    const tokenId = nftCreateTxReceipt.tokenId;
    console.log(`Token id: ${tokenId.toString()}`);

    // Mint token
    const nftMintTx = new TokenMintTransaction()
      .setMetadata([new TextEncoder().encode("Petrus 1996")])
      .setMaxTransactionFee(new Hbar(20))
      .setTokenId(tokenId)
      .freezeWith(client);

    const nftMintTxResponse = await (
      await nftMintTx.sign(supplyKey)
    ).execute(client);

    const nftMintTxReceipt = await nftMintTxResponse.getReceipt(client);
    console.log(
      `Status of NFT mint transaction: ${nftMintTxReceipt.status.toString()}`
    );

    // go to hashscan and show the minted serial -> there's no metadata or image
  } catch (error) {
    console.log(error);
  }

  client.close();
}

main();