hardhat

Semaphore Hardhat plugin

A Hardhat plugin to deploy Semaphore contracts.

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The Semaphore Hardhat plugin simplifies the deployment of Semaphore contracts, reducing setup time and complexity.

🛠 Install

npm or yarn

To install the Semaphore Hardhat plugin, use npm or yarn:

npm i @semaphore-protocol/hardhat

or yarn:

yarn add @semaphore-protocol/hardhat

📜 Usage

To use the plugin, import it in your Hardhat configuration file (hardhat.config.ts):

import "@semaphore-protocol/hardhat"
import "./tasks/deploy"

const hardhatConfig: HardhatUserConfig = {
    solidity: "0.8.4"
}

export default hardhatConfig

And use its tasks to create your own deploy task and deploy your contract with a Semaphore address.

import { task, types } from "hardhat/config"

task("deploy", "Deploy a Greeter contract")
    .addOptionalParam("logs", "Print the logs", true, types.boolean)
    .setAction(async ({ logs }, { ethers, run }) => {
        const { semaphore } = await run("deploy:semaphore", {
            logs
        })

        // Or:
        // const { semaphoreVerifier } = await run("deploy:semaphore-verifier", {
        //    logs
        // })

        const Greeter = await ethers.getContractFactory("Greeter")

        const greeter = await Greeter.deploy(semaphore.address)

        await greeter.deployed()

        if (logs) {
            console.log(`Greeter contract has been deployed to: ${greeter.address}`)
        }

        return greeter
    })

Deploying Contracts

Use the provided tasks to deploy your Semaphore contracts:

npx hardhat deploy

This command will deploy a Semaphore contract using the addresses provided or deploy necessary dependencies like Semaphore Verifier and Poseidon library.