80566bf0a2
Complete implementation of the Goa Government e-Licensing platform with: Backend: - NestJS API with JWT authentication - PostgreSQL database with Knex ORM - Redis caching and session management - MinIO document storage - Hyperledger Besu blockchain integration - Multi-department workflow system - Comprehensive API tests (266/282 passing) Frontend: - Angular 21 with standalone components - Angular Material + TailwindCSS UI - Visual workflow builder - Document upload with progress tracking - Blockchain explorer integration - Role-based dashboards (Admin, Department, Citizen) - E2E tests with Playwright (37 tests) Infrastructure: - Docker Compose orchestration - Blockscout blockchain explorer - Development and production configurations
112 lines
4.2 KiB
HTML
112 lines
4.2 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>blockchain-architecture</title>
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<script src="https://cdn.jsdelivr.net/npm/mermaid/dist/mermaid.min.js"></script>
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<style>
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body {
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margin: 0;
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padding: 20px;
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background: #1a1a1a;
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color: #fff;
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font-family: Arial, sans-serif;
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}
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h1 {
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text-align: center;
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color: #3b82f6;
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}
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.mermaid {
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display: flex;
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justify-content: center;
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background: transparent;
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}
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</style>
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</head>
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<body>
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<h1>BLOCKCHAIN ARCHITECTURE</h1>
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<div class="mermaid">
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graph TB
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subgraph Network["Hyperledger Besu Network<br/>QBFT Consensus<br/>4 Validator Nodes"]
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V1["🔐 Validator Node 1<br/>Port: 8545<br/>RPC Endpoint"]
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V2["🔐 Validator Node 2<br/>Port: 8546"]
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V3["🔐 Validator Node 3<br/>Port: 8547"]
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V4["🔐 Validator Node 4<br/>Port: 8548"]
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end
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subgraph SmartContracts["Smart Contracts"]
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LicenseNFT["📋 LicenseRequestNFT<br/>(ERC-721 Soulbound)<br/>• tokenId<br/>• licenseHash<br/>• metadata URI<br/>• issuerDept"]
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ApprovalMgr["✅ ApprovalManager<br/>• recordApproval()<br/>• rejectRequest()<br/>• requestChanges()<br/>• getApprovalChain()"]
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DeptRegistry["🏢 DepartmentRegistry<br/>• registerDept()<br/>• setApprovers()<br/>• getApprovers()<br/>• deptMetadata"]
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WorkflowRegistry["⚙️ WorkflowRegistry<br/>• defineWorkflow()<br/>• getWorkflow()<br/>• workflowStates<br/>• transitions"]
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end
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subgraph OnChain["On-Chain Data"]
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Accounts["💰 Accounts & Balances"]
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NFTState["🎖️ NFT State<br/>tokenId → Owner<br/>tokenId → Metadata"]
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Approvals["✅ Approval Records<br/>licenseHash → ApprovalChain"]
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end
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subgraph OffChain["Off-Chain Data<br/>PostgreSQL + MinIO"]
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DocMeta["📄 Document Metadata<br/>• documentId<br/>• licenseHash<br/>• uploadedBy<br/>• uploadDate<br/>• status"]
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LicenseReq["📋 License Request Details<br/>• requestId<br/>• applicantInfo<br/>• documents<br/>• notes"]
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WorkflowState["⚙️ Workflow State<br/>• currentState<br/>• stateHistory<br/>• timestamps<br/>• transitions"]
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DocFiles["📦 Actual Files<br/>• PDFs (MinIO)<br/>• Images<br/>• Proofs"]
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end
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subgraph DataLink["Data Linking"]
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Hash["🔗 Content Hashing<br/>SHA-256<br/>Document → Hash<br/>Immutable Link"]
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end
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subgraph Consensus["Consensus: QBFT"]
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QBFTInfo["Quorum Byzantine<br/>Fault Tolerant<br/>Requires 3/4 validators<br/>~1 block/12s"]
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end
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V1 -->|Peer Connection| V2
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V1 -->|Peer Connection| V3
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V1 -->|Peer Connection| V4
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V2 -->|Peer Connection| V3
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V2 -->|Peer Connection| V4
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V3 -->|Peer Connection| V4
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V1 -->|Deploy/Call| SmartContracts
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V2 -->|Deploy/Call| SmartContracts
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V3 -->|Deploy/Call| SmartContracts
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V4 -->|Deploy/Call| SmartContracts
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SmartContracts -->|Store State| OnChain
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LicenseNFT -->|Emit Events| OnChain
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ApprovalMgr -->|Record| OnChain
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DeptRegistry -->|Maintain| OnChain
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WorkflowRegistry -->|Track| OnChain
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Hash -->|Link Via Hash| LicenseReq
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Hash -->|Store Hash| OnChain
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DocMeta -->|Contains Hash| Hash
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LicenseReq -->|Store Details| OffChain
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WorkflowState -->|Track Off-Chain| OffChain
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DocFiles -->|Reference Via Hash| OffChain
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Hash -.->|Immutable Anchor| NFTState
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LicenseReq -.->|Linked to NFT| LicenseNFT
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V1 -->|Consensus| Consensus
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V2 -->|Consensus| Consensus
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V3 -->|Consensus| Consensus
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V4 -->|Consensus| Consensus
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style Network fill:#dc2626,stroke:#991b1b,stroke-width:2px,color:#fff
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style SmartContracts fill:#2563eb,stroke:#1e40af,stroke-width:2px,color:#fff
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style OnChain fill:#7c3aed,stroke:#5b21b6,stroke-width:2px,color:#fff
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style OffChain fill:#8b5cf6,stroke:#6d28d9,stroke-width:2px,color:#fff
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style DataLink fill:#06b6d4,stroke:#0891b2,stroke-width:2px,color:#fff
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style Consensus fill:#f59e0b,stroke:#d97706,stroke-width:2px,color:#fff
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</div>
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<script>
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mermaid.initialize({ startOnLoad: true, theme: 'dark' });
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mermaid.contentLoaded();
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</script>
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</body>
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</html> |