Defi Simplify

DeFi Simplify - Comprehensive Cross-Chain DeFi Platform

Project Overview

DeFi Simplify is an advanced DeFi platform that combines multiple key innovations:

1. Visual Strategy Builder: As seen in the batch component (typescript:frontend/app/batch/page.tsx startLine: 387 endLine: 418), users can create complex DeFi strategies using a visual block-based interface.

2. Multi-Protocol Integration: The platform integrates with multiple DeFi protocols:

   • PancakeSwap (typescript:frontend/components/pancakeswap/pancakeswap.tsx startLine: 43 endLine: 82)
   • 1inch Cross-Chain
   • Squid Router
   • CoW Protocol
   • Chainlink CCIP

3. Privacy Features: Integration with Oasis Sapphire for confidential transactions ( typescript:oasis-sapphire-remix-plugin/src/components/SapphireDeployer.tsx startLine: 23 endLine: 68)

Unique Features

1. Strategy Management:

   • Save and share trading strategies
   • Visual block-based strategy builder
   • Cross-chain execution capabilities
   • Strategy templates

2. Cross-Chain Operations:

   • Seamless asset transfers across chains
   • Unified liquidity access
   • CCIP integration for secure messaging
   • Support for multiple networks (BSC, Ethereum, Mantle, Base)

3. DEX Aggregation:

   • Best price routing across DEXes
   • Smart order routing
   • Gas optimization
   • MEV protection

4. Privacy and Security:

   • Confidential transactions via Oasis Sapphire
   • Secure contract deployment
   • Private strategy execution

Technical Architecture

The project consists of three main components:

1. Frontend (Next.js):

   • Modern React with Next.js 14
   • TailwindCSS for styling
   • Web3 integration with wagmi and thirdweb
   • Component library with shadcn/ui

2. Smart Contracts:

   • Hardhat development environment
   • Chainlink CCIP integration
   • Cross-chain messaging capabilities
   • Strategy execution contracts

3. Oasis Sapphire Plugin:

   • Remix IDE integration
   • Confidential contract deployment
   • Private transaction handling

Recent Updates

1. Added Merchant Moe DEX Support for Mantle Network
2. Implemented AI-based Trading Agent
3. Added XMTP Chat Support for CrossChain Trading
4. Developed Remix Plugin for Oasis Privacy

Here's a detailed explanation of how DeFi Simplify was built:

Core Architecture

The project is built on three main pillars:

1. Frontend Layer

• Built with Next.js 14 using the App Router
• Styled using TailwindCSS with shadcn/ui components
• Framer Motion for smooth animations (as seen in HomeScreen.tsx)
• React Query for efficient data fetching and caching

1. Blockchain Integration Layer

• Multiple Web3 libraries (ethers.js, web3.js, wagmi)
• Custom hooks for blockchain interactions
• Thirdweb SDK for wallet connections and contract interactions
• Viem for low-level blockchain operations

1. Protocol Integration Layer

• PancakeSwap SDK for DEX operations
• 1inch Cross-Chain SDK for cross-chain swaps
• Squid SDK for bridging operations
• CoW Protocol for MEV protection
• Chainlink CCIP for cross-chain messaging

Key Technical Features

1. Strategy Builder

The strategy builder is implemented as a block-based system where each block represents a DeFi action. The implementation can be seen in:

This allows users to:

• Create multi-step DeFi operations
• Save and load strategies
• Execute multiple transactions in sequence

2. Cross-Chain Integration

The cross-chain functionality is built using multiple protocols:

1. PancakeSwap Integration:

2. 1inch Cross-Chain:

import { PrivateKeyProviderConnector } from "@1inch/cross-chain-sdk"
import Web3 from "web3"
import { Web3Adapter } from '@/lib/web3-adapter'

3. Privacy Features

Integration with Oasis Sapphire for confidential transactions, implemented through a custom Remix plugin.

4. Strategy Storage

Implemented using BNB Greenfield for decentralized storage:

Notable Technical Implementations

1. Smart Router Integration

• Custom implementation of multi-DEX routing
• Gas optimization using batch multicalls
• Price impact calculations

1. Cross-Chain Message Passing

• CCIP integration for secure cross-chain communication
• Custom message formatting and verification
• Fallback mechanisms for failed transactions

1. Strategy Execution Engine

• Atomic execution of multiple transactions
• Rollback mechanisms for failed steps
• Gas estimation and optimization

Development Challenges & Solutions

1. Cross-Chain State Management

• Challenge: Maintaining consistent state across chains
• Solution: Implemented custom hooks and state management using React Query

1. Transaction Sequencing

• Challenge: Ensuring proper order of cross-chain transactions
• Solution: Developed a queue-based system with confirmation checks

1. Gas Optimization

• Challenge: High gas costs for multi-step transactions
• Solution: Implemented batching and multicalls where possible

1. UI/UX for Complex Operations

• Challenge: Making complex DeFi operations user-friendly
• Solution: Developed a visual block-based interface with drag-and-drop functionality

Partner Technologies Integration

1. Chainlink CCIP: Used for reliable cross-chain messaging
2. Oasis Sapphire: Implemented for privacy-preserving transactions
3. BNB Chain: Utilized for core infrastructure and Greenfield storage
4. PancakeSwap: Integrated for efficient DEX operations
5. 1inch: Leveraged for cross-chain swaps
6. CoW Protocol: Implemented for MEV protection

This technical implementation allows DeFi Simplify to provide a comprehensive, user-friendly interface for complex DeFi operations while maintaining security and efficiency across multiple blockchains.