1_deposit.js

async function deposit() {
  const depositValue = 100;
  console.log(chalk.green(`Deposit ${depositValue} from Bob's public erc20 to a aztec note`));

  console.log(`- executing bob.signers.erc20.approve()`);
  await (await bob.signers.erc20.approve(contractAddresses.ace, depositValue)).wait();

  const depositNote = await note.create(bob.publicKey, depositValue);
  depositNotes = [depositNote];
  const proof = new JoinSplitProof([], depositNotes, bob.address, depositValue * -1, bob.address);
  const data = proof.encodeABI(contractAddresses.zkAsset);
  const signatures = proof.constructSignatures(contractAddresses.zkAsset, []);

  const prevBalance = await erc20.balanceOf(bob.address);
  console.log(`- prevBalance: ${prevBalance.toString()}`);

  console.log(`- executing ace.publicApprove(ZK_ASSET_ADDRESS, ${proof.hash}, ${depositValue})`);
  await (await bob.signers.ace.publicApprove(
    contractAddresses.zkAsset,
    proof.hash,
    depositValue
  )).wait();

  console.log(`- executing zkAssetSigner.confidentialTransfer()`);
  await (await bob.signers.zkAsset.confidentialTransfer(data, signatures, ethOptions)).wait();

  const currBalance = await erc20.balanceOf(bob.address);
  console.log(`- currBalance: ${currBalance.toString()}`);
}