FlashLend is a decentralized lending protocol built on Solana using the Anchor framework. It enables users to stake tokens into a lending pool, request short-term flash loans, and earn fees based on loan repayments. The protocol ensures efficient lending and borrowing with a reputation-based fee system.
- Users can stake tokens into the lending pool.
- Earn passive income from loan interest and accumulated fees.
- Stake can be withdrawn at any time, subject to pool availability.
- Users can request flash loans with a defined duration.
- Loan fees are determined based on user reputation.
- Loans must be repaid before the expiration time.
- Borrowers build reputation by successfully repaying loans.
- Higher reputation leads to lower borrowing fees.
- Borrowers must repay loans within the specified duration.
- Repayment includes the loan amount plus an interest fee.
- Expired loans are automatically cleaned from the system.
- The contract ensures proper fee accumulation and distribution.
- Admins can reset the pool when necessary.
- Stake Tokens: Users stake tokens in the pool to increase liquidity.
- Withdraw Stake: Users can withdraw staked tokens based on availability.
- Pool Parameters:
- Total Staked: Total amount of tokens in the pool.
- Available: Tokens available for loan issuance.
- Accumulated Fees: Fees collected from loan interest.
- Request Loan: Users can borrow tokens with a predefined duration.
- Loan Terms:
- Loan amount: Minimum 10M tokens, maximum 1T tokens.
- Loan duration: 10 seconds to 1 hour.
- Fees: 1% standard, 0.5% for high-reputation users.
- Repay Loan: Borrowers repay the loan amount plus a fee.
- Reputation System: Borrowers who repay successfully gain reputation, reducing future loan fees.
- Reset Pool: Admin can reset the pool to reinitialize the state.
- Clean Expired Loans: Removes loans that are overdue.
stake_to_pool(amount: u64): Stake tokens into the pool.withdraw_stake(amount: u64): Withdraw tokens from the pool.request_loan(amount: u64, duration: u64): Request a loan.repay_loan(): Repay the loan before expiration.
reset_pool(): Reset the lending pool state.clean_expired_loans(): Remove expired loans from the contract.
get_pool_details(): View details of the lending pool.calculate_fee(amount: u64, reputation: u64): Calculate loan fees.
- Deploy the FlashLend smart contract using Anchor on Solana.
- Initialize the lending pool using
initialize_pool().
- Call
stake_to_pool(amount)to stake tokens. - View staked amount with
get_pool_details(). - Withdraw stake using
withdraw_stake(amount).
- Request a loan using
request_loan(amount, duration). - Repay the loan before the expiration using
repay_loan().
- Call
reset_pool()to clear all data and restart the pool. - Use
clean_expired_loans()to remove overdue loans.
Staked(address user, uint256 amount)- User staked tokens.LoanRequested(address borrower, uint256 amount, uint256 duration)- Loan requested.LoanRepaid(address borrower, uint256 amount, uint256 fee)- Loan successfully repaid.StakeWithdrawn(address user, uint256 amount)- Stake withdrawn.PoolReset(address admin)- Pool reset by admin.ExpiredLoansCleaned(uint256 count)- Expired loans removed.
- Ensure contract audits before deploying to mainnet.
- Only stake tokens you are willing to risk.
- Monitor loan expiration to avoid penalties.
This project is licensed under the MIT License. See the LICENSE file for more details.
For issues and support, open an issue on the GitHub repository or contact us via email.
- GitHub Repository: FlashLend
- Demo Video: Watch Here
- Project Website: Visit Here