Defi Simplify

Screenshots

Problem Statement

DeFi Simplify - Comprehensive Cross-Chain DeFi PlatformProject OverviewDeFi Simplify is an advanced DeFi platform that combines multiple key innovations: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.Multi-Protocol Integration: The platform integrates with multiple DeFi protocols:PancakeSwap (typescript:frontend/components/pancakeswap/pancakeswap.tsx startLine: 43 endLine: 82)1inch Cross-ChainSquid RouterCoW ProtocolChainlink CCIPPrivacy Features: Integration with Oasis Sapphire for confidential transactions (typescript:oasis-sapphire-remix-plugin/src/components/SapphireDeployer.tsx startLine: 23 endLine: 68)Unique FeaturesStrategy Management:Save and share trading strategiesVisual block-based strategy builderCross-chain execution capabilitiesStrategy templatesCross-Chain Operations:Seamless asset transfers across chainsUnified liquidity accessCCIP integration for secure messagingSupport for multiple networks (BSC, Ethereum, Mantle, Base)DEX Aggregation:Best price routing across DEXesSmart order routingGas optimizationMEV protectionPrivacy and Security:Confidential transactions via Oasis SapphireSecure contract deploymentPrivate strategy executionTechnical ArchitectureThe project consists of three main components:Frontend (Next.js):Modern React with Next.js 14TailwindCSS for stylingWeb3 integration with wagmi and thirdwebComponent library with shadcn/uiSmart Contracts:Hardhat development environmentChainlink CCIP integrationCross-chain messaging capabilitiesStrategy execution contractsOasis Sapphire Plugin:Remix IDE integrationConfidential contract deploymentPrivate transaction handlingRecent UpdatesAdded Merchant Moe DEX Support for Mantle NetworkImplemented AI-based Trading AgentAdded XMTP Chat Support for CrossChain TradingDeveloped Remix Plugin for Oasis Privacy

Solution

Here's a detailed explanation of how DeFi Simplify was built:Core ArchitectureThe project is built on three main pillars:Frontend LayerBuilt with Next.js 14 using the App RouterStyled using TailwindCSS with shadcn/ui componentsFramer Motion for smooth animations (as seen in HomeScreen.tsx)React Query for efficient data fetching and cachingBlockchain Integration LayerMultiple Web3 libraries (ethers.js, web3.js, wagmi)Custom hooks for blockchain interactionsThirdweb SDK for wallet connections and contract interactionsViem for low-level blockchain operationsProtocol Integration LayerPancakeSwap SDK for DEX operations1inch Cross-Chain SDK for cross-chain swapsSquid SDK for bridging operationsCoW Protocol for MEV protectionChainlink CCIP for cross-chain messagingKey Technical Features1. Strategy BuilderThe 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 operationsSave and load strategiesExecute multiple transactions in sequence2. Cross-Chain IntegrationThe cross-chain functionality is built using multiple protocols:PancakeSwap Integration:1inch Cross-Chain:import { PrivateKeyProviderConnector } from "@1inch/cross-chain-sdk" import Web3 from "web3" import { Web3Adapter } from '@/lib/web3-adapter'3. Privacy FeaturesIntegration with Oasis Sapphire for confidential transactions, implemented through a custom Remix plugin.4. Strategy StorageImplemented using BNB Greenfield for decentralized storage:Notable Technical ImplementationsSmart Router IntegrationCustom implementation of multi-DEX routingGas optimization using batch multicallsPrice impact calculationsCross-Chain Message PassingCCIP integration for secure cross-chain communicationCustom message formatting and verificationFallback mechanisms for failed transactionsStrategy Execution EngineAtomic execution of multiple transactionsRollback mechanisms for failed stepsGas estimation and optimizationDevelopment Challenges & SolutionsCross-Chain State ManagementChallenge: Maintaining consistent state across chainsSolution: Implemented custom hooks and state management using React QueryTransaction SequencingChallenge: Ensuring proper order of cross-chain transactionsSolution: Developed a queue-based system with confirmation checksGas OptimizationChallenge: High gas costs for multi-step transactionsSolution: Implemented batching and multicalls where possibleUI/UX for Complex OperationsChallenge: Making complex DeFi operations user-friendlySolution: Developed a visual block-based interface with drag-and-drop functionalityPartner Technologies IntegrationChainlink CCIP: Used for reliable cross-chain messagingOasis Sapphire: Implemented for privacy-preserving transactionsBNB Chain: Utilized for core infrastructure and Greenfield storagePancakeSwap: Integrated for efficient DEX operations1inch: Leveraged for cross-chain swapsCoW Protocol: Implemented for MEV protectionThis technical implementation allows DeFi Simplify to provide a comprehensive, user-friendly interface for complex DeFi operations while maintaining security and efficiency across multiple blockchains.