CropGuard 🌾🛡️

Decentralized, Automated Parametric Crop Insurance on the Flare Network.

Live Demo: https://crop-guard-jade.vercel.app/
Repository: https://github.com/Atul-Chahar/CropGuard

CropGuard solves the inefficiency of traditional agriculture insurance by automating the entire lifecycle—from policy purchase to weather verification and payout—using the Flare Blockchain.

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🏗️ Technology Stack (Where we use Flare)

We leverage Flare's enshrined protocols to build a system that is both trustless and economically sound.

Technology	Implementation in Project	Why it matters?
FTSO (Flare Time Series Oracle)	PayoutModule.sol: Calls getCurrentPriceWithDecimals("C2FLR").	Ensures payouts are pegged to real-world USD value, unaffected by FLR price volatility.
FDC (Flare Data Connector)	WeatherOracleAdapter.sol: Receives off-chain attestation data.	Allows the blockchain to verify "Did it rain?" without trusting a central server.
Smart Contracts	CollateralPool.sol & PolicyManager.sol	Automated logic for risk management, premiums, and liquidations.
Next.js & Tailwind	packages/app	A modern, high-performance UI for farmers to interact with the blockchain.

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⚙️ How It Works: The "Set It and Forget It" System

CropGuard is designed for 100% Automation and Reliability.

1. Farmer Buys Policy 🚜

• Farmer selects Crop (e.g., Wheat) and Location.
• Pays a Premium in FLR (e.g., 10 FLR).
• Reliability: The premium is instantly locked in the CollateralPool.

2. "The Sentinel" Monitors Weather ⛈️

• Our Off-Chain Oracle (scripts/oracle/weather-oracle.js) runs continuously.
• It checks OpenWeatherMap data against the policy's location.
• Automation: If Adverse Weather (Drought/Flood) is detected, the script automatically submits a transaction to the blockchain. No human claim filing needed.

3. Instant Payout 💸

• PayoutModule receives the weather trigger.
• It queries FTSO for the current FLR price.
• It calculates the payout: (Insured USD Amount / FLR Price).
• Funds are sent directly to the farmer.

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💰 The Liquidity Model: How Investors Earn

We built a Shared Risk/Reward Protocol so the community can enable this insurance.

For Liquidity Providers (Investors)

1. Stake: Anyone can deposit FLR into the CollateralPool.
2. Earn: Every time a farmer buys a policy, the premium (e.g., 10 FLR) is added to the pool.
3. Reward: This premium is distributed pro-rata to all Stakers over time.
   • Example: If you own 10% of the pool, you earn 10% of every premium paid.
4. Risk: If a payout happens, it comes from the pool. Stakers effectively become the "Insurance Company," earning steady yield in exchange for covering disaster risk.

Security

• Reentrancy Guard: Protected against reentrancy attacks using OpenZeppelin's ReentrancyGuard.
• Module Separation: Logic is split into PolicyManager (Data), PayoutModule (Logic), and CollateralPool (Money) for better security and upgradability.

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🚀 Deployment (Coston2 Testnet)

Contracts:

• PolicyManager: 0x4aDEea1FEa03a462720C38BAb146934cfd96F924
• CollateralPool: 0x5Ed6CF1ADf3330F61D666D3336a2d59eeeA7E0fE
• PayoutModule: 0xCF8B54c0D4f10a05254a007f24F099aBFEd585c7
• WeatherAdapter: 0x0Fd10bb23f3D17a149FFC0c0e7AA4eBE82eD9226

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🛠️ Installation

# 1. Clone
git clone https://github.com/Atul-Chahar/CropGuard.git

# 2. Install
npm install
cd packages/contract && npm install
cd ../app && npm install

# 3. Configure .env (See .env.example)

# 4. Run App
cd packages/app
npm run dev

Built with ❤️ for the Flare Hackathon.