StakeForge

Stake FORGE, earn FOG. Full-stack staking dApp with Solidity, Hardhat, and Next.js.

Connect a wallet, stake tokens, earn rewards, claim or unstake from the dashboard. Works on local Hardhat and Sepolia testnet.

Tech Stack

Layer	Stack
Contracts	Solidity 0.8.20, Hardhat, OpenZeppelin
Frontend	Next.js 14, TypeScript, Tailwind CSS
Web3	wagmi, viem, RainbowKit
Networks	Hardhat Local (31337), Sepolia (11155111)

Architecture

User Wallet
│
▼
Next.js Frontend (wagmi + RainbowKit)
│
├── ForgeToken (FORGE) ──stake──▶ StakingRewards ◀──fund── Owner
│ │
└── FogToken (FOG) ◀────claim──────────┘

How it works

1. Stake: approve and deposit FORGE into StakingRewards
2. Earn: pool releases FOG every second, split by stake share
3. Claim: pull earned FOG to your wallet
4. Unstake: withdraw FORGE from the pool

Uses the standard rewardPerToken pattern. Pending rewards sync on every user action.

Contracts

Contract	Role
ForgeToken	Staking token (FORGE)
FogToken	Reward token (FOG)
StakingRewards	Pool: stake, withdraw, claim

Project Structure

StakeForge/
├── contracts/
│ ├── contracts/ # Solidity source
│ ├── scripts/ # Deploy + mint scripts
│ ├── test/ # Hardhat tests
│ └── deployments/ # Saved deploy output (gitignored)
├── frontend/
│ ├── app/ # Pages (/, /stake)
│ ├── components/ # UI + wallet
│ ├── hooks/ # useStakingPool
│ └── lib/ # ABIs, wagmi config, helpers
└── package.json # npm workspaces

Prerequisites

• Node.js 18+
• MetaMask (or compatible wallet)
• Sepolia ETH (for testnet deploy)

Quick Start

npm install
npm run compile
npm run test
npm run dev

Local Development

1. Start Hardhat node

cd contracts && npx hardhat node

2. Deploy contracts

cd contracts && npx hardhat run scripts/deploy.ts --network localhost

Copy the printed addresses into frontend/.env.local.

3. Mint FORGE to your wallet

Deploy mints 1M FORGE to Account #0 only. For another wallet:

cd contracts
FORGE_TOKEN=0xYourForgeAddress MINT_TO=0xYourWallet npm run mint-forge

4. Run the frontend

npm run dev

Open http://localhost:3000/stake. Connect MetaMask to Hardhat Local:

Field	Value
RPC	http://127.0.0.1:8545
Chain ID	31337

Restarting hardhat node wipes state. Redeploy and update .env.local.

Sepolia Deployment

1. Configure contracts/.env

cp contracts/.env.example contracts/.env

SEPOLIA_RPC_URL=https://eth-sepolia.g.alchemy.com/v2/YOUR_KEYPRIVATE_KEY=your_wallet_private_key_without_0xETHERSCAN_API_KEY=your_etherscan_api_keyREWARD_RATE=0.001POOL_FUNDING=50000

2. Deploy and verify

npm run deploy:sepolia

Deploys contracts, funds the pool, saves addresses to contracts/deployments/sepolia.json, and verifies on Etherscan.

3. Update frontend

Add the printed addresses to frontend/.env.local, then rebuild or restart the dev server.

Environment Variables

contracts/.env

Variable	Description
SEPOLIA_RPC_URL	Sepolia RPC endpoint
PRIVATE_KEY	Deployer private key
ETHERSCAN_API_KEY	For contract verification
REWARD_RATE	FOG per second (default 0.001 on Sepolia)
POOL_FUNDING	FOG sent to pool at deploy (default 50000)

frontend/.env.local

Variable	Description
NEXT_PUBLIC_WALLETCONNECT_PROJECT_ID	WalletConnect Cloud project ID
NEXT_PUBLIC_STAKING_TOKEN_ADDRESS	ForgeToken address
NEXT_PUBLIC_REWARDS_TOKEN_ADDRESS	FogToken address
NEXT_PUBLIC_STAKING_CONTRACT_ADDRESS	StakingRewards address

Scripts

Command	Description
npm run compile	Compile contracts
npm run test	Run Hardhat tests (24 tests)
npm run dev	Start Next.js dev server
npm run build	Production build
npm run deploy:local	Deploy to Hardhat node
npm run deploy:sepolia	Deploy + verify on Sepolia

Security

See SECURITY.md for trust assumptions and what the contracts protect against.

License

MIT