scaffold-eth2-greeter

Greeting contract and Next.js UI built on Scaffold-ETH 2, wired through the scaffold-eth hooks for typed contract reads and writes.

Stack

• Scaffold-ETH 2 (Hardhat + Next.js + RainbowKit + wagmi v2 + viem)
• Tailwind CSS + DaisyUI
• TypeScript end-to-end with auto-generated typed contract bindings

Prerequisites

Tool	Version
Node.js	20+
Yarn	3.x+
Wallet	MetaMask works for local

Quick start

yarn install
yarn chain     # local Hardhat node in one terminal
yarn deploy    # deploys YourContract in another terminal
yarn start     # Next.js dev server

Open http://localhost:3000, connect a wallet, set a new greeting.

Deploying to a testnet

Scaffold-ETH 2 reads RPC URLs from packages/hardhat/.env and packages/nextjs/.env.local. Recommended provider: Infura via MetaMask Developer. Set keys per network you target (e.g. SEPOLIA_RPC_URL, LINEA_RPC_URL), then yarn deploy --network sepolia and update packages/nextjs/scaffold.config.ts to include the chain.

What's in here

This repo contains the customizations on top of the default Scaffold-ETH 2 starter:

• packages/hardhat/contracts/YourContract.sol: greeting contract with owner-only setter and event emission
• packages/nextjs/app/page.tsx: UI for reading and writing the greeting
• Custom scaffold-eth hooks usage (useScaffoldReadContract, useScaffoldWriteContract)

How the hot-reload pipeline works

Edit contract -> yarn compile -> ABI auto-synced
                              -> packages/nextjs/contracts/deployedContracts.ts
                              -> hooks pick up new types instantly

No manual ABI copy. Edit, compile, the frontend is in sync.