import Web3 from 'web3';
import Proofchain from 'proofchain-library';

const web3Instance = new Web3(
    new Web3.providers.HttpProvider('<http node provider>')
  );

web3Instance.eth.accounts.wallet.add("<private key or account object>");

const proofchain = await Proofchain.web3Init({
  web3,
  fromAddress: "<address to send transctions from>",
  factoryContractAddress: "<factory contract address>",
});

// create a new material
proofchain.material.create({
  name,
  code,
  images: [],
  amountIdentifier,
  recipeMaterialTokenId,
  recipeMaterialAmount,
}).send();