DRIP BNB LP Staking

Overview

This project implements a DeFi staking system on BNB Chain, featuring a DRIP token with inflationary minting, a staking contract for LP tokens, a treasury for tax and reward management, and a vault for secure token storage.

Main Contracts

• DripToken: Mintable BEP20 token with customizable inflation, transfer taxes, and whitelisting.
• DRIP_BNBLPToken: BEP20 LP token for staking.
• DripStaking: Users stake LP tokens for rewards, with lock periods (1–52 weeks) and boost multipliers.
• Treasury: Receives taxes, burns 90%, sends 10% to treasury, and distributes 1% daily to staking rewards.
• Vault: Holds DRIP tokens, only whitelisted addresses can withdraw.

Key Features

• Adjustable DRIP inflation rate.
• Staking with lock periods (up to 52 weeks) and reward boosts.
• Automated tax handling: 90% burn, 10% to treasury.
• Daily reward distribution from treasury to stakers.
• Full test suite for deployment, staking, claiming, and withdrawal.

Installation

npm install

Compilation

npx hardhat compile

Testing

npx hardhat test

Deployment

1. Set your private key in hardhat.config.js:

   const PRIVATE_KEY = "your_private_key";

2. Deploy contracts:

   npx hardhat run scripts/deploy.js --network <network-name>

   • Supported networks: bsctest, bsc, bbfork, or hardhat (local).

Deployment outputs contract addresses to contracts.env.

Environment

• Uses Hardhat, OpenZeppelin, and hardhat-faucet.
• All contract addresses are saved in contracts.env after deployment.

Testing Coverage

• Contract deployment and initialization.
• Staking and lock period logic.
• Reward calculation and claiming.
• Tax and treasury payout logic.
• Vault withdrawal and access control.

Customization

• Inflation rate, payout rate, and cooldowns are owner-configurable.
• Treasury and vault addresses can be updated post-deployment.

---

For more details, see the contract files in the contracts/ directory and the test suite in test/test.js.