Environment Variables

Configuration for the OEC Staking dApp.

Frontend (Vite)

Variable	Description	Required
VITE_WALLETCONNECT_PROJECT_ID	WalletConnect Cloud project ID	Yes

Minimal Config: The staking dApp is a pure client-side application. Contract addresses are hardcoded in client/src/services/staking-contract.ts. No database or API keys required for the frontend.

Smart Contract Development (Hardhat)

Variable	Description	Required
ALCHEMY_API_KEY	Alchemy API key for Sepolia RPC	Yes
DEPLOYER_KEY	Private key for contract deployment	Yes
ETHERSCAN_API_KEY	Etherscan API key for verification	No

Contract Addresses

Contract addresses are defined in:

Source: client/src/services/staking-contract.ts

export const STAKING_CONTRACT = "0xd12664c1f09fa1561b5f952259d1eb5555af3265";
export const OEC_TOKEN = "0x00904218319a045a96d776ec6a970f54741208e6";
export const ACHIEVEMENTS_CONTRACT = "0xbb0805254d328d1a542efb197b3a922c3fd97063";
export const FAUCET_CONTRACT = "0x29c900b48079634e5b1e19508fa347340ee786bb";

To update contract addresses after redeployment, edit this file and rebuild.

Wallet Configuration

Wallet connectors and chain configuration are defined in:

Source: client/src/lib/wagmi.ts

Supported chains: Sepolia (primary), Mainnet, BSC, Polygon, Arbitrum, Optimism, Avalanche, Base.