#Deploying your contracts

To deploy your contracts, you can use Hardhat Ignition, our declarative deployment system. You can deploy the Lock contract from the sample project by specifying a deployment with an Ignition Module file like this:

TypeScript

JavaScript

import { buildModule } from "@nomicfoundation/hardhat-ignition/modules";

const ONE_GWEI: bigint = 1_000_000_000n;

const LockModule = buildModule("LockModule", (m) => {
  const unlockTime = m.getParameter("unlockTime");
  const lockedAmount = m.getParameter("lockedAmount", ONE_GWEI);

  const lock = m.contract("Lock", [unlockTime], {
    value: lockedAmount,
  });

  return { lock };
});

export default LockModule;

const { buildModule } = require("@nomicfoundation/hardhat-ignition/modules");

const ONE_GWEI = 1_000_000_000n;

module.exports = buildModule("LockModule", (m) => {
  const unlockTime = m.getParameter("unlockTime");
  const lockedAmount = m.getParameter("lockedAmount", ONE_GWEI);

  const lock = m.contract("Lock", [unlockTime], {
    value: lockedAmount,
  });

  return { lock };
});

You can deploy in the localhost network following these steps:

Start a local node
```
npx hardhat node
```

Open a new terminal and deploy the Hardhat Ignition module in the localhost network

TypeScript

JavaScript

npx hardhat ignition deploy ./ignition/modules/LockModule.ts --network localhost

npx hardhat ignition deploy ./ignition/modules/LockModule.js --network localhost

As general rule, you can target any network from your Hardhat config using:

npx hardhat ignition deploy ./ignition/modules/LockModule.js --network <your-network>

If no network is specified, Hardhat Ignition will run against an in-memory instance of Hardhat Network.

Read more about Hardhat Ignition in the Hardhat Ignition documentation.