Batch nonce increments

batch-nonce.ts

import {
  PrivateKey,
  Mina,
  isReady,
  shutdown,
  PublicKey,
  UInt64,
  AccountUpdate,
  UInt32,
  fetchAccount,
} from 'snarkyjs';
import * as fs from 'fs';

await isReady;

// Use MinaExplorer GraphQL endpoint
let Berkeley = Mina.BerkeleyQANet(
  'https://proxy.berkeley.minaexplorer.com/graphql'
);
Mina.setActiveInstance(Berkeley);

let nonce = 464;

// Fee payer key this is B62qij84rwTzzTiompizumg46WFAGgQ7bss7ephB47xxag8oDaDsGhX
// These are throwaway testnet keys, intentionally left in so easy to replicate - don't use these outside of this script
// This uses the same account to pay fees and also to send funds
let feePayerKey = PrivateKey.fromBase58(
  'EKEEvWvRxGzLmb4RY2EFtMMxr2tAbKUnmMUBh6K5iv73VjnassXH'
);
let feePayerAddress = feePayerKey.toPublicKey();

// These are the precalculated values that we have determined via a payout script to send
let zkAppSendAddresses = [
  {
    publicKey: 'B62qmQsEHcsPUs5xdtHKjEmWqqhUPRSF2GNmdguqnNvpEZpKftPC69e',
    total: 100_000,
  },
  {
    publicKey: 'B62qoSguyyq4HZxUvZ11XpYCdDUNj2kamPYxsB8htC6dmuRGoMT3xoe',
    total: 200_000,
  },
  {
    publicKey: 'B62qrdBP6fwq3siFexMittg3C6n5iXJArysBsuYXbugmnm4N89nkLdc',
    total: 300_000,
  },
  {
    publicKey: 'B62qmCMRUqWm7t2mz3omtPV6HjiCbtbvktMqLyNMWy8H2CrLcnfkm3H',
    total: 400_000,
  },
  {
    publicKey: 'B62qjAv5XhWK315NP4uav1TFcTSfaNUymNJsMAeySWHTzmNaPTqT46A',
    total: 500_000,
  },
  {
    publicKey: 'B62qobjtGGkU5jh6p8fEMxeLCzj9EMQx4WnaQ5HVdA43w5TBL6Ghb9a',
    total: 600_000,
  },
  {
    publicKey: 'B62qiUe9CRCttdBsQzWpKqCZiiAMD85EebgLYKjwXAN5jhWPMuzUEPM',
    total: 700_000,
  },
  {
    publicKey: 'B62qj5dnxafRpeSscUcygj13Q9EiKPj5B5rV3KorR6KoV5VcNfxvULH',
    total: 800_000,
  },
  {
    publicKey: 'B62qs1invvKpB68RRUcDYSEXyuuhPrdwRocExkhMNZcMi4wediCswrN',
    total: 900_000,
  },
  {
    publicKey: 'B62qiqP9tB8uut1xMjKNH7EYEFViZoTJ8Lf34Z8YJPYvdHjE3JZwaaa',
    total: 1_000_000,
  },
];

// Transaction fee to use
let transactionFee = 100_000_000;

await fetchAccount({ publicKey: feePayerAddress });

// This will increment the nonce for the zkApp tx
for (let i = nonce; i < nonce + 10; i = i + 2) {
  console.log('Making a transfer');
  let tx = await Mina.transaction(
    {
      feePayerKey,
      fee: transactionFee,
      memo: 'Constrain nonce',
      nonce: i,
    },
    () => {
      let payer = AccountUpdate.create(feePayerAddress);
      for (let [key, value] of Object.entries(zkAppSendAddresses)) {
        payer.send({
          to: PublicKey.fromBase58(value['publicKey']),
          amount: UInt64.from(value['total']),
        });
      }
      payer.sign(feePayerKey);

      // Manually specify the nonce which is incremented
      payer.account.nonce.assertEquals(UInt32.from(i + 1));
    }
  );

  // Need to sign the transaction before broadcast
  tx.sign();

  // Write this to a file so we can broadcast seperately
  fs.writeFileSync('payments/' + i + '.json', tx.toGraphqlQuery());

  // Sending the transaction to debug
  await tx.send().wait();
}

shutdown();