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Add code from erc721 101 class (#5)

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bt3gl 2022-03-23 06:56:46 -07:00 • committed by GitHub
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erc721-solidity-101/scripts/mint-nft.js Normal file
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require('dotenv').config();
const PUBLIC_KEY = process.env.PUBLIC_KEY;
const PRIVATE_KEY = process.env.PRIVATE_KEY;
const API_URL = process.env.API_URL;
const METADATA_URL = process.env.METADATA_URL;
const CONTRACT_ADDRESS = process.env.CONTRACT_ADDRESS;
const { createAlchemyWeb3 } = require("@alch/alchemy-web3");
const web3 = createAlchemyWeb3(API_URL);
const contract = require("../artifacts/contracts/MiaNFT.sol/MiaNFT.json");
const nftContract = new web3.eth.Contract(contract.abi, CONTRACT_ADDRESS);
async function mintNFT(tokenURI) {
const nonce = await web3.eth.getTransactionCount(PUBLIC_KEY, 'latest');
const transaction = {
'from': PUBLIC_KEY,
'to': CONTRACT_ADDRESS,
'nonce': nonce,
'gas': 500000,
'maxPriorityFeePerGas': 1999999987,
'data': nftContract.methods.mintNFT(PUBLIC_KEY, tokenURI).encodeABI()
};
const sign = web3.eth.accounts.signTransaction(transaction, PRIVATE_KEY);
sign.then((signedTransaction) => {
web3.eth.sendSignedTransaction(signedTransaction.rawTransaction, function(e, hash) {
if (!e) {
console.log("💾 Transaction hash: ", hash);
} else {
console.log("ERROR:", e)
}
});
}).catch((e) => {
console.log("ERROR:", e);
});
}
mintNFT(METADATA_URL);