NEAR FUSION+ Smart Contract Development

NEAR Fusion+ is a comprehensive DeFi protocol that migrates 1inch's proven Limit Order Protocol and Cross-Chain Swap functionality to the NEAR blockchain. The system provides two primary capabilities: advanced limit order trading with partial fills and extensible features, and atomic cross-chain swaps secured by time-locked escrow contracts.

Implementation Limit Order Protocol

Core Components

• Compact: ERC-6909 enabled Chainlink calculator for price discovery
• ResourceManager: Manages resource locks for ERC-6909 integration
• TychoSwapExecutor: Executes complex swaps using Tycho Execution
• CompactInteraction: Post-interaction handler for resource allocation
• RebalancerInteraction: Treasury management and portfolio rebalancing
• OracleCalculator: Price oracle integration for advanced order strategies

Key Features

• Resource Locking: ERC-6909 compliant resource management
• Multi-DEX Execution: Cross-platform swap execution via Tycho
• Advanced Order Types: Stop-loss and take-profit orders
• Treasury Management: Automated portfolio rebalancing
• Oracle Integration: Chainlink price feeds for accurate pricing

Key Technology Enhancements

• Solidity based tests including a migration from OrderUtils.js to solidity based OrderUtils
• Solidity ^0.8.30 compatibility provided by creating an interface ILimitOrderProtocol.sol and introducing LimitOrderProtocolManager for testing.

Architecture

Interactions