Zattak

Zattak is an end-to-end DeFi experience built for the Rootstock ecosystem. It lets users swap supported tokens (rUSDT, USDT, etc.) into RIF and stake the resulting RIF in a single, atomic transaction so stRIF balances increase immediately without juggling wallets, approvals, or multiple transactions.

Why Zattak?

• One-click staking – swap + stake in a single click.
• Atomic safety – if one step fails, everything reverts.
• User‑first UX – the dApp shows expected output, balances, and stRIF deltas in real time.

What does it do?

1. Takes user-selected tokens (rUSDT/USDT/etc.)
2. Routes them through Sushi swap to get RIF
3. Stakes the RIF into the Rootstock staking contract
4. Handles every approval + swaps + deposit under the hood
5. Returns freshly minted stRIF to the user

What's Included

• contracts/: Foundry workspace with RIFDepositer (main production contract) plus testing helpers.
• Frontend/: React/Vite dApp for connecting wallets, selecting tokens, and triggering the on-chain batching / staking flow.
• Script/: Helper scripts (e.g., generate-calldata.js) for producing swap calldata used inside tests and simulations.

---

Setup

Prerequisites

• Node.js 18+
• npm (or yarn/pnpm)
• Foundry (curl -L https://foundry.paradigm.xyz | bash)

Install Dependencies

# Contracts (Foundry)
cd contracts
forge install

# Frontend
cd ../Frontend
npm install

# Scripts (calldata generator)
cd ../Script
npm install

Environment

• Frontend/.env

  VITE_WALLETCONNECT_PROJECT_ID=<your_id>
  VITE_RIF_BATCH_DEPOSITER=<deployed_RIFDepositer_address>
  

• Script/.env (optional—defaults provided)

  RSK_RPC_URL=https://public-node.rsk.co
  

---

Usage

Smart Contracts

cd contracts
# Compile
forge build

# Run a specific test on Rootstock fork
forge test --fork-url https://public-node.rsk.co -vvv --match-test testExecuteCallsAndDepositWithRUSDT

Calldata Generation

cd Script
node generate-calldata.js
# Outputs swap calldata for rUSDT → RIF and USDT → RIF flows

Frontend

cd Frontend
npm run dev
# Visit http://localhost:5173

From the UI, connect a wallet on Rootstock testnet, choose tokens + amounts, and click “Swap & Stake” to run the full batch/approve/stake flow in one go.