Base Network: A Solidity & Hardhat starter project for building, testing, and deploying smart contracts on Base (Coinbase’s Layer 2).

📖 Overview

This project helps developers to:

Write & compile Solidity smart contracts.

Test contracts with Hardhat.

Deploy on Base Sepolia Testnet and Base Mainnet.

Verify contracts on BaseScan / Blockscout.

🛠 Tech Stack

Solidity

Hardhat

OpenZeppelin Contracts

Base Network (L2 by Coinbase)

⚡ Installation

clone repo

git clone https://github.com//Base-Network.git cd Base-Network

install dependencies

npm install

compile contracts

npx hardhat compile

run tests

npx hardhat test

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🔑 Environment Variables

তুমি একটি .env ফাইল তৈরি করবে (উদাহরণ নিচে দেওয়া হলো):

PRIVATE_KEY=0xYOUR_WALLET_PRIVATE_KEY BASE_MAINNET_RPC=https://mainnet.base.org BASE_SEPOLIA_RPC=https://sepolia.base.org BASESCAN_API_KEY=your_basescan_api_key

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⚙️ Hardhat Configuration (example)

hardhat.config.js

require('dotenv').config(); require("@nomicfoundation/hardhat-toolbox");

const { PRIVATE_KEY, BASE_MAINNET_RPC, BASE_SEPOLIA_RPC, BASESCAN_API_KEY } = process.env;

module.exports = { solidity: "0.8.20", networks: { hardhat: {}, baseSepolia: { url: BASE_SEPOLIA_RPC || "https://sepolia.base.org", chainId: 84532, accounts: [PRIVATE_KEY] }, baseMainnet: { url: BASE_MAINNET_RPC || "https://mainnet.base.org", chainId: 8453, accounts: [PRIVATE_KEY] } }, etherscan: { apiKey: { baseMainnet: BASESCAN_API_KEY, baseSepolia: BASESCAN_API_KEY } } };

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🚀 Deployment

Deploy to Base Sepolia Testnet

npx hardhat run --network baseSepolia scripts/deploy.js

Deploy to Base Mainnet

npx hardhat run --network baseMainnet scripts/deploy.js

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✅ Verify Contract

npx hardhat verify --network baseMainnet <DEPLOYED_CONTRACT_ADDRESS> "arg1" "arg2"

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📂 Project Structure

/contracts -> Solidity contracts
/scripts -> Deployment scripts
/test -> Unit tests
.env -> Environment variables
hardhat.config.js
README.md

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🔐 Security Notes

Never commit .env with private keys.

Use multisig or hardware wallets for production deployment.

Always test on Base Sepolia before mainnet deployment.

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📚 Resources

Base Official Docs

BaseScan Explorer

Hardhat Docs