grant-batch.js

grant-batch.js

const ethers = require('ethers')
const fs = require("fs")
const readline = require("readline")
const contracts = require('@unlock-protocol/contracts')

/**
 * A script that airdrops NFT memberships to users
 */

const batchSize = 200
const lockAddress = '0x819525dcab3eb87c006ed23f290cc28033315fb1'
const rpc = "https://rpc.unlock-protocol.com/5"


const airdrop = async (wallet, recipients) => {
  const lock = new ethers.Contract(lockAddress, contracts.PublicLockV13.abi, wallet)
  const expirations = recipients.map((r) => ethers.constants.MaxUint256)
  const managers = recipients.map((r) => wallet.address)
  const transaction = await lock.grantKeys(recipients, expirations, managers)
  console.log(`Transaction hash: ${transaction.hash}`)
  await transaction.wait()
  console.log(' -> mined!')
}

const main = async () => {
  if (!process.env.PKEY) {
    throw new Error("No private key provided. make sure PKEY is defined");
  }
  const wallet = (new ethers.Wallet(process.env.PKEY)).connect(new ethers.providers.JsonRpcProvider(rpc))


  let recipients = []

  const readInterface = readline.createInterface({
    input: fs.createReadStream('recipients.txt')
  });

  for await (const line of readInterface) {
    recipients.push(line)
    if (recipients.length == batchSize) {
      await airdrop(wallet, recipients)
      recipients = []
    }
  }
}


main().catch((error) => {
  console.error(error);
  process.exitCode = 1;
});