veSave - VeChain Technical Test

Task 1: VeChain Kit Social Login

Setup

npm install
cp .env.example .env

Configure (optional for social login)

Add your credentials to .env:

VITE_PRIVY_APP_ID=your-privy-app-id
VITE_PRIVY_CLIENT_ID=your-privy-client-id

Run

npm run dev

Open http://localhost:5173 and click "Connect Wallet" to see login options (Google, Email, Passkey).

Key Files

• src/components/VeChainKitProvider.tsx - VeChain Kit + Privy configuration
• src/main.tsx - Provider wrapper

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Task 2: B3TR → VET Swap Contract

Test

npm run test:contracts

Runs 15 tests covering deployment, swapping, slippage protection, and access control.

Compile

npm run compile

Deploy (requires private key in .env)

npx hardhat run scripts/deploy.cjs --network vechain_testnet

Key Files

• contracts/B3TRVetSwapper.sol - Main swap contract with ReentrancyGuard
• test/B3TRVetSwapper.test.cjs - Test suite

Mainnet Addresses

Contract	Address
VeRocket Router	0x576da7124C7bB65a692d95848276367e5a844d95
B3TR Token	0x5ef79995FE8a89e0812330E4378eB2660ceDe699

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Frontend Integration

The B3TR swap is integrated into the UI via:

• src/services/b3trSwap.ts - Contract ABI and helpers
• src/hooks/useB3TRSwap.ts - React hook for swap transactions
• src/App.tsx - "B3TR to VET Swap" UI section