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Contract Deployment Tutorial ​

The RISE Sepolia Testnet allows developers to deploy and test smart contracts. This tutorial will walk you through deploying contracts using popular Ethereum development tools.

Prerequisites ​

Before starting:

  1. Get testnet ETH (see Getting Testnet ETH)
  2. Install Node.js and a package manager (npm/yarn)
  3. Have a wallet with your private key ready

Getting Testnet ETH ​

You'll need testnet ETH to deploy contracts. You can:

Deploy with Hardhat ​

1. Set Up Project ​

bash
# Create new directory
mkdir my-rise-contract
cd my-rise-contract

# Initialize project
npm init -y
npm install --save-dev hardhat @nomicfoundation/hardhat-toolbox
npx hardhat init

2. Configure Hardhat ​

Create or modify hardhat.config.js:

javascript
require("@nomicfoundation/hardhat-toolbox");

/** @type import('hardhat/config').HardhatUserConfig */
module.exports = {
  solidity: "0.8.24",
  networks: {
    rise: {
      url: process.env.Rise_RPC_URL,
      accounts: [process.env.PRIVATE_KEY],
      chainId: 11155931
    }
  }
};

3. Create Contract ​

Create contracts/Lock.sol:

solidity
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.24;

contract Lock {
    uint public unlockTime;
    address payable public owner;

    constructor(uint _unlockTime) payable {
        require(block.timestamp < _unlockTime, "Unlock time should be in future");
        unlockTime = _unlockTime;
        owner = payable(msg.sender);
    }

    function withdraw() public {
        require(block.timestamp >= unlockTime, "Too early");
        require(msg.sender == owner, "Not owner");
        owner.transfer(address(this).balance);
    }
}

4. Deploy Contract ​

Create scripts/deploy.js:

javascript
async function main() {
  const currentTimestampInSeconds = Math.round(Date.now() / 1000);
  const unlockTime = currentTimestampInSeconds + 60; // 1 minute from now

  const Lock = await ethers.getContractFactory("Lock");
  const lock = await Lock.deploy(unlockTime, { value: ethers.parseEther("0.0001") });

  await lock.waitForDeployment();

  console.log(
    `Lock with ${ethers.formatEther("0.0001")} ETH deployed to ${lock.target}`
  );
}

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

Deploy:

bash
npx hardhat run scripts/deploy.js --network rise

Deploy with Foundry ​

1. Install Foundry ​

bash
curl -L https://foundry.paradigm.xyz | bash
foundryup

2. Create Project ​

bash
forge init my-rise-contract
cd my-rise-contract

3. Deploy Contract ​

bash
forge create \
  --rpc-url RPC_URL \
  --private-key YOUR_PRIVATE_KEY \
  src/Lock.sol:Lock \
  --constructor-args 1706745600 \
  --value 0.0001ether

Replace 1706745600 with a future Unix timestamp and adjust the ETH value as needed.

Verify Your Contract ​

After deployment, verify your contract following our Contract Verification Guide.

Need Help? ​