├── README.md
└── Lending.sol


/README.md:
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 1 | # Decentralized Lending Platform 💰  
 2 | A blockchain-powered lending and borrowing platform that eliminates intermediaries, enabling users to earn interest or borrow assets by providing collateral.  
 3 | 
 4 | ## 📌 Features  
 5 | - **Supply assets** and earn interest  
 6 | - **Borrow assets** with crypto collateral  
 7 | - **Dynamic interest rates** based on supply & demand  
 8 | - **Automated liquidation** to protect lenders  
 9 | - **Web3 wallet integration** (MetaMask, WalletConnect)  
10 | 
11 | ## 🔗 Project Structure  
12 | /decentralized-lending-platform
13 |  ├── contracts/         # Solidity smart contracts for lending & borrowing logic
14 |  ├── scripts/           # Deployment and interaction scripts
15 |  ├── frontend/          # Web-based UI for users
16 |  ├── backend/           # API for querying blockchain data
17 |  ├── test/              # Unit tests for smart contracts
18 |  ├── README.md          # Setup and usage guide
19 |  ├── hardhat.config.js  # Hardhat configuration file
20 |  ├── package.json       # Dependencies
21 | 


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/Lending.sol:
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 1 | 
 2 | ---
 3 | 
 4 | ### **Example Solidity Contract (`contracts/Lending.sol`)**  
 5 | ```solidity
 6 | // SPDX-License-Identifier: MIT
 7 | pragma solidity ^0.8.19;
 8 | 
 9 | import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
10 | import "@openzeppelin/contracts/access/Ownable.sol";
11 | 
12 | contract LendingPlatform is Ownable {
13 |     struct Loan {
14 |         address borrower;
15 |         uint256 collateralAmount;
16 |         uint256 borrowedAmount;
17 |         uint256 interestRate;
18 |         uint256 dueDate;
19 |         bool isRepaid;
20 |     }
21 | 
22 |     IERC20 public stablecoin;
23 |     mapping(address => Loan) public loans;
24 | 
25 |     event LoanRequested(address indexed borrower, uint256 amount, uint256 collateral);
26 |     event LoanRepaid(address indexed borrower, uint256 amount);
27 | 
28 |     constructor(address _stablecoin) {
29 |         stablecoin = IERC20(_stablecoin);
30 |     }
31 | 
32 |     function requestLoan(uint256 _borrowAmount, uint256 _collateralAmount, uint256 _interestRate) public {
33 |         require(loans[msg.sender].borrowedAmount == 0, "Existing loan must be repaid first");
34 | 
35 |         stablecoin.transferFrom(msg.sender, address(this), _collateralAmount);
36 |         loans[msg.sender] = Loan(msg.sender, _collateralAmount, _borrowAmount, _interestRate, block.timestamp + 30 days, false);
37 | 
38 |         emit LoanRequested(msg.sender, _borrowAmount, _collateralAmount);
39 |     }
40 | 
41 |     function repayLoan() public {
42 |         Loan storage loan = loans[msg.sender];
43 |         require(loan.borrowedAmount > 0, "No active loan");
44 |         require(!loan.isRepaid, "Loan already repaid");
45 | 
46 |         uint256 repaymentAmount = loan.borrowedAmount + (loan.borrowedAmount * loan.interestRate) / 100;
47 |         stablecoin.transferFrom(msg.sender, address(this), repaymentAmount);
48 | 
49 |         loan.isRepaid = true;
50 |         stablecoin.transfer(msg.sender, loan.collateralAmount);
51 |         
52 |         emit LoanRepaid(msg.sender, repaymentAmount);
53 |     }
54 | }
55 | 


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