Yield

Website

Overview

Yield is a decentralized lending platform built on blockchain technology, allowing users to borrow against their assets securely. The platform facilitates loans using USDC and supports the ERC-1155 standard for tokenized assets, making it suitable for various applications like land and crop financing.

Features

• Decentralized Lending: Users can borrow funds using their tokenized assets as collateral.
• Multi-Asset Support: Compatible with ERC-1155 tokens, allowing various asset types to be used as collateral.
• Transparent Transactions: All transactions are recorded on the blockchain for complete transparency.
• User-Friendly Interface: A clean and intuitive frontend for seamless user interaction.

Getting Started

Prerequisites

• Node.js
• Yarn or npm
• Metamask or any compatible wallet

Project Structure:

• /frontend: Platform's Frontend implemented using Nextjs
• /yieldContract: Land Tonization, Borrowing and seda (for smart contract)
• /seda: Seda Request and other implementations of seda protocol
• /graph: The Graph implementation to query the blockchain

Installation

1. Clone the repository:

   git clone https://github.com/pixelhubster/yield.git
   cd yield/frontend

2. Install the dependencies:

   npm install

3. Set up your environment variables. Create a .env file in the root directory:

   REACT_APP_AGROMONITORING_API_KEY=your_api_key
   ..etc
   

4. Start the development server:

   npm run dev

Usage

1. Connect your wallet (e.g., Metamask) to the YieldLending platform.
2. Register Land and get ERC-721 ownership token.
3. Register Yield to grow on land and list yield Token for sale.
4. Use the lending features to borrow against your tokenized assets.

Contract Addresses

• Land Token Contract (ERC-721): 0x810cB15e1fb9954d2513fD5Eb490f084a49416c7
• Yield Token Contract (ERC-1155): 0x10B365BC4043Fb4500c33a06EdFA9cc4b255A6eC
• YieldLending Contract: 0x5a176Aa95797955ce405a39dfbDa6F3209F9cBA0
• Orcacle program Id: 999bf15ed4fa3ef94347a97918427419a04981453a8a309140e0fe722a886b77

Oracle And API endpoints

Used this endpoints in my seda program call to fetch soil and weather data of land. input for oracle program: appId/polygonId/latitude/longitude OracleId: 999bf15ed4fa3ef94347a97918427419a04981453a8a309140e0fe722a886b77 Sample Transaction Hash: https://devnet.explorer.seda.xyz/data-requests/7b6b8f3bd24d50bb5cc8967f6c008067f529513319a142b803dac5a7f73f010b sample for replication: 720ee6ba01017d67d198d3f11517f5bc/6729ebda7fc9dc4a1e7734ba/51.56297825/-0.0352305

• Polygon Creation:

  • Endpoint: http://api.agromonitoring.com/agro/1.0/polygons
  • Method: POST
  • Parameters: appid, duplicated, geo_json

• Soil Data Retrieval:

  • Endpoint: https://api.agromonitoring.com/agro/1.0/soil
  • Method: GET
  • Parameters: polyid, appid

• Weather Data Retrieval:

  • Endpoint: https://api.agromonitoring.com/agro/1.0/weather
  • Method: GET
  • Parameters: lat, lon, appid

Features

• Data Fetching: Chain Link function retrieves data from a our platforms API endpoint to get daily weather and soil data for all the lands registered.
• Chainlink Automation: Schedules the function to run daily, ensuring data is consistently updated.
• IPFS Storage: Stores the fetched data's IPFS hash on the blockchain for easy retrieval and verification.
• Data Feeds: Gets the usdc price feed for borrowing and repay of loan on our platform.

Functionality

1. Data Fetching Function:

   • Fetches data from the platform's API.
   • Processes and stores the data.
   • Saves the IPFS hash of the data on the blockchain.

2. Chainlink Automation:

   • Utilizes Chainlink Automation to trigger the data fetching function daily, ensuring that the latest data is always available on the blockchain.

Contributing

Contributions are welcome! Please follow these steps to contribute:

1. Fork the repository.
2. Create a feature branch:

   git checkout -b feature/YourFeature

3. Commit your changes:

   git commit -m "Add YourFeature"

4. Push to the branch:

   git push origin feature/YourFeature

5. Open a Pull Request.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Contact

For any inquiries, please reach out to:

• Noble Nyuiela: pixelhubster@gmail.com

Acknowledgements

• Agromonitoring for their API services.
• OpenZeppelin for their ERC standards.
• Contributors and supporters of the YieldLending project.