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asle/docs/ARCHITECTURE.md

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# ASLE Architecture Documentation
## System Architecture
### Overview
ASLE uses a modular Diamond (ERC-2535) architecture with multiple facets handling different functionalities.
### Smart Contract Architecture
#### Core Components
- **Diamond.sol** - Main proxy contract using ERC-2535 standard
- **DiamondCutFacet** - Manages facet additions/updates/removals
- **DiamondInit** - Initialization contract
#### Feature Facets
- **LiquidityFacet** - DODO PMM implementation
- **VaultFacet** - ERC-4626 and ERC-1155 vaults
- **ComplianceFacet** - Multi-mode compliance system
- **CCIPFacet** - Cross-chain messaging
- **GovernanceFacet** - DAO governance
- **SecurityFacet** - Emergency controls
- **RWAFacet** - Real-world asset tokenization
#### Libraries
- **LibDiamond** - Diamond storage management
- **LibAccessControl** - Role-based access control
- **LibReentrancyGuard** - Reentrancy protection
- **PMMMath** - DODO PMM calculations
### Backend Architecture
#### API Layer
- REST API (Express.js)
- GraphQL API (Apollo Server)
- WebSocket for real-time updates
#### Service Layer
- ComplianceService - KYC/AML/OFAC
- CCIPService - Cross-chain tracking
- MonitoringService - Health and metrics
- MultiJurisdictionService - Regulatory compliance
- CustodialService - Wallet management
- BankService - SWIFT/ISO 20022
#### Data Layer
- PostgreSQL database
- Prisma ORM
- Redis for caching
### Frontend Architecture
#### Framework
- Next.js 16 (App Router)
- React 19
- TypeScript
#### Key Libraries
- Wagmi/Viem for Web3
- React Query for data fetching
- Tailwind CSS for styling
- Recharts for visualizations
### Cross-Chain Architecture
#### CCIP Integration
- Chainlink CCIP for messaging
- Multi-chain state synchronization
- Liquidity pool syncing
- Vault rebalancing
## Data Flow
### Pool Creation Flow
1. User submits pool creation via frontend
2. Frontend sends transaction to LiquidityFacet
3. Contract validates and creates pool
4. Event emitted and indexed
5. Backend updates database
6. Frontend refreshes pool list
### Compliance Flow
1. User requests compliance mode change
2. Frontend calls ComplianceFacet
3. Contract validates permissions
4. Backend service verifies KYC/AML
5. Compliance status updated
6. Audit trail recorded
## Security Model
### Access Control
- Role-based permissions
- Multi-sig support
- Timelock for upgrades
### Security Features
- Reentrancy guards
- Circuit breakers
- Emergency pause
- Price deviation monitoring
## Deployment Architecture
### Networks
- Ethereum Mainnet
- Polygon
- Arbitrum
- Optimism
- Base
### Infrastructure
- Docker containers
- Kubernetes-ready
- Load balanced
- Monitored