StratoVM: Deploy Smart Contract on Bitcoin Layer2 using FOUNDRY

Deploying smart contracts on the StratoVM network can greatly enhance the security and efficiency of your decentralized applications (dApps) by leveraging Bitcoin’s robust blockchain technology. In this guide, we will walk you through deploying a smart contract on StratoVM using Foundry, a powerful toolkit for Ethereum application development. Foundry’s compatibility with StratoVM simplifies the deployment process and allows for seamless integration of your dApps on the network.

Prerequisites

Before we start, ensure you have the following:

1. Node.js v14 or above: Foundry relies on Node.js. Download and install it from the official website.
2. Foundry: Install Foundry by following the instructions in the Foundry GitHub repository.
3. Testnet BTC: Obtain some Testnet BTC for deployment gas fees. https://medium.com/@StratoVM_/a-comprehensive-guide-claiming-faucet-earning-the-discord-role-and-minting-stratovm-nfts-23998db11c74

Foundry is not well-suited for the Windows environment. To run Foundry on Windows, you’ll need to install Windows Subsystem for Linux (WSL). Even with WSL installed, you may encounter issues that often require workarounds to resolve.

Step-by-Step Guide to Deploy Smart Contracts on StratoVM using Foundry

Step 1: Setting Up Foundry

1. Install Foundry
2. Open your terminal and install Foundry by running the following command:

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

3. Create a new directory for your project and navigate into it:

mkdir stratovm-foundry
cd stratovm-foundry

4. After installation, initialize Foundry in your project directory:

foundryup
forge init

Step 2: Write the Smart Contract

1. Create a new file and name it TestToken.sol inside the src folder.

touch src/TestToken.sol

2. Copy and paste this code inside TestToken.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract TestToken {
    string public name = "Test Token"; // Replace with your desired token name
    string public symbol = "tTKN"; // Replace with your desired token symbol
    uint8 public decimals = 18; // Replace with your desired token decimals
    uint256 public totalSupply;
    address public owner;

    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    constructor() {
        owner = msg.sender;
        totalSupply = 1000000 * 10 ** uint256(decimals); // Replace with your desired token suply
        balanceOf[owner] = totalSupply;
        emit Transfer(address(0), owner, totalSupply);
    }

    function transfer(address _to, uint256 _value) public returns (bool success) {
        require(balanceOf[msg.sender] >= _value, "Insufficient balance");
        balanceOf[msg.sender] -= _value;
        balanceOf[_to] += _value;
        emit Transfer(msg.sender, _to, _value);
        return true;
    }

    function approve(address _spender, uint256 _value) public returns (bool success) {
        allowance[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }

    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
        require(_value <= balanceOf[_from], "Insufficient balance");
        require(_value <= allowance[_from][msg.sender], "Allowance exceeded");
        balanceOf[_from] -= _value;
        balanceOf[_to] += _value;
        allowance[_from][msg.sender] -= _value;
        emit Transfer(_from, _to, _value);
        return true;
    }
}

3. Compile contract by running:

forge build

Step 3: Deploy the Smart Contract

1. To deploy smart contract using foundy you need several parameter.

RPC: https://bitcoin-l2-349313-testnet.tc.l2aas.com/rpc

Private Key: private key of your wallet with some StratoVM BTC Testnet to cover gas fee.

2. Deploy using foundry by running:

forge create --rpc-url <your_rpc_url> --private-key <your_private_key> src/MyContract.sol:MyContract

For StratoVM Testnet:

forge create --rpc-url https://bitcoin-l2-349313-testnet.tc.l2aas.com/rpc --private-key 0xxxxxxxxxxxxxxxxxxxxxx src/TestToken.sol:TestToken

Replace 0xxxxxxxxxxxxxxxxxxxxxx with your actual Private Key

3. Check explorer to confirm the deployment

You can copy contract address and paste it on your metamask to see your balance

CONGRATULATIONS!!!

Deploying smart contracts on the StratoVM network using Foundry offers a powerful way to leverage Bitcoin’s security for your decentralized applications. By following this guide, you can efficiently deploy and verify your smart contracts on StratoVM, ensuring high security and performance for your dApps.

Explore More:

• StratoVM Documentation: StratoVM Docs
• Foundry GitHub: Foundry GitHub Repository

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• StratoSwap Twitter: @StratoSwap
• Discord: StratoSwap Community

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