create-lock-web3js.js

// ABI for the Unlock contract (partial)
// You can also get it from the package '@unlock-protocol/contracts'
const UNLOCK_ABI = [
  {
    inputs: [
      {
        internalType: "bytes",
        name: "data",
        type: "bytes",
      },
      {
        internalType: "uint16",
        name: "_lockVersion",
        type: "uint16",
      },
    ],
    name: "createUpgradeableLockAtVersion",
    outputs: [
      {
        internalType: "address",
        name: "",
        type: "address",
      },
    ],
    stateMutability: "nonpayable",
    type: "function",
  },
];

// ABI for the Lock contract (partial) for which you will deploy instances. I used the latest version (10) here.
// You can also get it from the package '@unlock-protocol/contracts'
const LOCK_ABI = [
  {
    inputs: [
      {
        internalType: "address payable",
        name: "_lockCreator",
        type: "address",
      },
      {
        internalType: "uint256",
        name: "_expirationDuration",
        type: "uint256",
      },
      { internalType: "address", name: "_tokenAddress", type: "address" },
      { internalType: "uint256", name: "_keyPrice", type: "uint256" },
      {
        internalType: "uint256",
        name: "_maxNumberOfKeys",
        type: "uint256",
      },
      { internalType: "string", name: "_lockName", type: "string" },
    ],
    name: "initialize",
    outputs: [],
    stateMutability: "nonpayable",
    type: "function",
  },
];

// Create Javascript instances
const lock = web3.eth.contract(LOCK_ABI);
// We connect to the deployed Unlock address see list of addresses on https://docs.unlock-protocol.com/unlock/developers/smart-contracts#unlock
const unlock = web3.eth.contract(UNLOCK_ABI, unlockAddress);

// To create the lock we need to first "compact" its arguments:
const params = lock.methods.initialize(
  "address of lock creator", // you would put your address
  web3.utils.toBN(2).pow(web3.utils.toBN(256)), // Passing max uint makes these key non expiring
  "0x0000000000000000000000000000000000000000", // Currency for these keys is set to use the chain's default currency by passing the 0 address
  web3.utils.toBN(0), // Price is 0
  web3.utils.toBN(0), // 0 keys are "purchasable" (they will all be granted)
  "Proof of engagement for XXX" // name for the contract
);

// Execute the transaction to deploy!
unlock.createUpgradeableLockAtVersion(params, 10);