전체 문서 색인은 llms.txt

Smart Contract

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Folder Structure

Let’s view the file structure for a default foundry project:

$ cd hello_foundry
$ tree . -d -L 1
.
├── lib
├── script
├── src
└── test

4 directories

Demo smart contract

In the src folder, you will find a simple smart contract called counter.sol. Which contains a simple counter contract.

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.30;

contract Counter {
    uint256 public number;

    function setNumber(uint256 newNumber) public {
        number = newNumber;
    }

    function increment() public {
        number++;
    }
}

Try this contract in Remix

Want to deploy and interact with Counter.sol without any local setup? Use the button below to open it directly in the Remix IDE. You'll need MetaMask with Rootstock Testnet configured — see the full Remix + Rootstock guide for the exact steps.

Compile the Contract

To build the contract, run the following command in the project's root directory.

forge build

This will compile your smart contracts and generate out directory:

forge build
[⠊] Compiling...
[⠒] Compiling 36 files with Solc 0.8.30
[⠑] Solc 0.8.30 finished in 1.56s
Compiler run successful!