Operations to query balance of VTHO

operations.js

/**
 * Get token amount of holder from a contract.
 * @param {String} addressContract 0x started address.
 * @param {String} addressHolder 0x started address.
 */
async function getTokenBalance (addressContract, addressHolder) {
  const balanceOfABI = {
      'constant': true,
      'inputs': [
      {
          'name': '_owner',
          'type': 'address'
      }
      ],
      'name': 'balanceOf',
      'outputs': [
      {
          'name': 'balance',
          'type': 'uint256'
      }
      ],
      'payable': false,
      'stateMutability': 'view',
      'type': 'function'
  }
  // eslint-disable-next-line
  const balanceOfMethod = connex.thor.account(addressContract).method(balanceOfABI)
  const balanceInfo = await balanceOfMethod.call(addressHolder)
  return balanceInfo
}