1.0.0
| Version | Date | Description of Change |
|---|---|---|
| 1.0.0 | 2023-11-16 | Initial release |
This document provides an in-depth technical analysis of the peer-to-peer lending platform developed for Bonny. This blockchain-based solution is designed to democratize access to credit and eliminate the need for traditional financial intermediaries.
The platform is composed of several Smart Contracts deployed on the Ethereum blockchain, providing a secure and transparent environment for peer-to-peer lending activities.
- LoanManager.sol: Central contract managing the lifecycle of loans.
- LenderProposal.sol: Contract for managing lenders' proposals.
- BorrowerRequest.sol: Contract for handling borrowers' credit requests.
- LoanMath.sol: Library for financial calculations.
Deployed on Goerli Testnet
| Contract Name | Address |
|---|---|
| LoanManager.sol | 0x884c924D52D6c8688E5D4AE0b090A1eda09eEb70 |
| LoanMath.sol | 0x2d8103552f97C3657e8eC4723fe964BE5e36D461 |
| BorrowerRequest.sol | 0xa190819409F3b4808Fce1A0fDFe00BaaB08b1d48 |
| LenderProposal.sol | 0x9D498284b718A41a561AE9bE84Cf1Cb9c4b261AB |
Solidity was chosen for its robustness and wide adoption for writing Ethereum Smart Contracts. It ensures compatibility with the Ethereum Virtual Machine (EVM) and is supported by a rich development ecosystem.
The decision to modularize the platform into multiple contracts was made to ensure separation of concerns, enhance maintainability, and upgradeability.
Acts as the orchestrator for the lending process, interfacing with both LenderProposal and BorrowerRequest contracts. It ensures the integrity of transactions and maintains the state of each loan.
These contracts manage proposals and requests respectively. By decoupling them from the LoanManager, we provide flexibility and facilitate the potential for standalone functionalities.
A Solidity library used for all mathematical operations to ensure precision and prevent overflows. It handles interest and penalty calculations, crucial for financial integrity.
- Reentrancy Guards: To prevent reentrancy attacks, we've ensured that all external calls are made after state changes.
- Access Control: Modifiers like
onlyOwnerandvalidLoanwere used to restrict function execution to authorized users.
Contracts were deployed on the Goerli Testnet to validate the system's functionality in a live environment akin to the Ethereum mainnet.
Proxy contracts and the diamond pattern were considered but not implemented in the initial version to keep the system simple and robust.
- Implementation of a governance token for platform decisions.
- Incorporation of a decentralized autonomous organization (DAO) for platform upgrades and decision-making.
The technical choices made throughout this project were aimed at creating a secure, transparent, and efficient platform for peer-to-peer lending. While the current implementation serves the basic needs, future enhancements are planned to extend the platform's capabilities.