delegate.js

const EthUtil = require('ethereumjs-util');
const Web3 = require('web3');
const Tx = require('ethereumjs-tx');

const privateKey = Buffer.from(
  '<private-key>',
  'hex',
)
const address = "<from-address>"
const value = "1"
const validator = "1" // ID of the validator you want to delegate to


web3 = new Web3(new Web3.providers.HttpProvider('http://34.253.43.155:3001/'));


delegate()

async function delegate() {
  abi = JSON.parse('[{"constant":true,"inputs":[],"name":"minDelegation","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"bondedRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"stakersNum","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"slashedStakeTotalAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"short","type":"uint256"},{"internalType":"uint256","name":"long","type":"uint256"}],"name":"updateGasPowerAllocationRate","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"withdrawDelegation","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"value","type":"uint256"}],"name":"updateBaseRewardPerSec","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"prepareToWithdrawDelegation","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"delegationLockPeriodEpochs","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"epochSnapshots","outputs":[{"internalType":"uint256","name":"endTime","type":"uint256"},{"internalType":"uint256","name":"duration","type":"uint256"},{"internalType":"uint256","name":"epochFee","type":"uint256"},{"internalType":"uint256","name":"totalBaseRewardWeight","type":"uint256"},{"internalType":"uint256","name":"totalTxRewardWeight","type":"uint256"},{"internalType":"uint256","name":"baseRewardPerSecond","type":"uint256"},{"internalType":"uint256","name":"stakeTotalAmount","type":"uint256"},{"internalType":"uint256","name":"delegationsTotalAmount","type":"uint256"},{"internalType":"uint256","name":"totalSupply","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"maxDelegatedRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"contractCommission","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"delegationsTotalAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes","name":"metadata","type":"bytes"}],"name":"updateStakerMetadata","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"stakerID","type":"uint256"},{"internalType":"uint256","name":"epoch","type":"uint256"}],"name":"calcTotalReward","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"minStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[],"name":"updateCapReachedDate","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"unbondingUnlockPeriod","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"stakeTotalAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"capReachedDate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"stakeLockPeriodTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"delegationsNum","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"unbondingStartDate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"stakeLockPeriodEpochs","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"getStakerID","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"bondedTargetRewardUnlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"unbondingPeriod","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"currentEpoch","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"currentSealedEpoch","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"stakersLastID","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"rewardsAllowed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"isOwner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"stakerID","type":"uint256"},{"internalType":"uint256","name":"_fromEpoch","type":"uint256"},{"internalType":"uint256","name":"maxEpochs","type":"uint256"}],"name":"calcValidatorRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"stakerMetadata","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"slashedDelegationsTotalAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"validatorCommission","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"maxStakerMetadataSize","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"delegator","type":"address"},{"internalType":"uint256","name":"_fromEpoch","type":"uint256"},{"internalType":"uint256","name":"maxEpochs","type":"uint256"}],"name":"calcDelegationRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"e","type":"uint256"},{"internalType":"uint256","name":"v","type":"uint256"}],"name":"epochValidator","outputs":[{"internalType":"uint256","name":"stakeAmount","type":"uint256"},{"internalType":"uint256","name":"delegatedMe","type":"uint256"},{"internalType":"uint256","name":"baseRewardWeight","type":"uint256"},{"internalType":"uint256","name":"txRewardWeight","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"withdrawStake","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"delegations","outputs":[{"internalType":"uint256","name":"createdEpoch","type":"uint256"},{"internalType":"uint256","name":"createdTime","type":"uint256"},{"internalType":"uint256","name":"deactivatedEpoch","type":"uint256"},{"internalType":"uint256","name":"deactivatedTime","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"paidUntilEpoch","type":"uint256"},{"internalType":"uint256","name":"toStakerID","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"to","type":"uint256"}],"nam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nt"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"stakerID","type":"uint256"}],"name":"PreparedToWithdrawStake","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"stakerID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"penalty","type":"uint256"}],"name":"WithdrawnStake","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"uint256","name":"stakerID","type":"uint256"}],"name":"PreparedToWithdrawDelegation","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"uint256","name":"stakerID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"penalty","type":"uint256"}],"name":"WithdrawnDelegation","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_capReachedDate","type":"uint256"}],"name":"ChangedCapReachedDate","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"UpdatedBaseRewardPerSec","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"short","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"long","type":"uint256"}],"name":"UpdatedGasPowerAllocationRate","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"}]')

  var sfc = new web3.eth.Contract(abi, "0xfc00face00000000000000000000000000000000")
  transfer({
        from: address,
        to: "0xfc00face00000000000000000000000000000000",
        value: value,
        data:  sfc.methods.createDelegation(validator).encodeABI(),
        privateKey,
  })
}

async function transfer({ from, to, value, data, privateKey }) {
  const nonce = await web3.eth.getTransactionCount(from);
  const gasPrice = await web3.eth.getGasPrice();
  console.log(gasPrice)

  const bal = await this.web3.eth.getBalance(from);

  console.log(bal)

  const rawTx = {
    from,
    to,
    value: Web3.utils.toHex(Web3.utils.toWei(value, 'ether')),
    gasLimit: Web3.utils.toHex(200000),
    gasPrice: Web3.utils.toHex(gasPrice),
    nonce: Web3.utils.toHex(nonce),
    data: data,
  };

  const privateKeyBuffer = EthUtil.toBuffer(privateKey);

  const tx = new Tx(rawTx);
  console.log(tx.toJSON())
  tx.sign(privateKeyBuffer);
  const serializedTx = tx.serialize();

  const res = await this.web3.eth.sendSignedTransaction(`0x${serializedTx.toString('hex')}`);
  console.log(res)
  return res;
}