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Goa-gel-fullstack/container-architecture.mermaid
Mahi 80566bf0a2 feat: Goa GEL Blockchain e-Licensing Platform - Full Stack Implementation
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
2026-02-07 10:23:29 -04:00

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graph TB
subgraph Client["Client Layer"]
WEB["🌐 Next.js 14 Frontend<br/>shadcn/ui<br/>Port: 3000"]
end
subgraph API["API & Backend Layer"]
APIGW["📡 API Gateway<br/>NestJS<br/>Port: 3001"]
AUTH["🔐 Auth Service<br/>API Key + Secret<br/>(POC)"]
WORKFLOW["⚙️ Workflow Service<br/>NestJS Module"]
APPROVAL["✅ Approval Service<br/>NestJS Module"]
DOCUMENT["📄 Document Service<br/>NestJS Module"]
end
subgraph Data["Data Layer"]
DB["🗄️ PostgreSQL<br/>Port: 5432<br/>license_requests<br/>approvals, documents<br/>audit_logs"]
CACHE["⚡ Redis Cache<br/>Port: 6379<br/>Session, Workflow State"]
STORAGE["📦 MinIO<br/>Port: 9000<br/>Document Files<br/>License PDFs"]
end
subgraph Blockchain["Blockchain Layer"]
BESU["⛓️ Hyperledger Besu<br/>QBFT Consensus<br/>Port: 8545"]
CONTRACTS["📋 Smart Contracts<br/>• LicenseRequestNFT<br/>• ApprovalManager<br/>• DepartmentRegistry<br/>• WorkflowRegistry"]
BCDB["📚 Chain State<br/>Account Balances<br/>NFT Metadata"]
end
subgraph Integrations["External Integrations"]
DIGILOCKER["📱 DigiLocker Mock<br/>Document Verification"]
LEGACY["💼 Legacy Systems<br/>Data Integration"]
WEBHOOK["🔔 Webhook Service<br/>Event Notifications"]
end
WEB -->|REST/GraphQL| APIGW
APIGW -->|Validate Token| AUTH
APIGW -->|Route Request| WORKFLOW
APIGW -->|Route Request| APPROVAL
APIGW -->|Route Request| DOCUMENT
WORKFLOW -->|Read/Write| DB
WORKFLOW -->|Cache State| CACHE
WORKFLOW -->|Submit TX| BESU
APPROVAL -->|Read/Write| DB
APPROVAL -->|Cache| CACHE
APPROVAL -->|Smart Contract Call| BESU
DOCUMENT -->|Store Files| STORAGE
DOCUMENT -->|Hash Generation| DOCUMENT
DOCUMENT -->|Record Hash| BESU
BESU -->|Execute| CONTRACTS
CONTRACTS -->|Update State| BCDB
APIGW -->|Verify Docs| DIGILOCKER
APIGW -->|Query Legacy| LEGACY
APPROVAL -->|Send Event| WEBHOOK
style WEB fill:#10b981,stroke:#059669,stroke-width:2px,color:#fff
style APIGW fill:#3b82f6,stroke:#1e40af,stroke-width:2px,color:#fff
style AUTH fill:#f59e0b,stroke:#d97706,stroke-width:2px,color:#fff
style DB fill:#8b5cf6,stroke:#6d28d9,stroke-width:2px,color:#fff
style STORAGE fill:#ec4899,stroke:#be123c,stroke-width:2px,color:#fff
style CACHE fill:#06b6d4,stroke:#0891b2,stroke-width:2px,color:#fff
style BESU fill:#ef4444,stroke:#991b1b,stroke-width:2px,color:#fff
style CONTRACTS fill:#dc2626,stroke:#7f1d1d,stroke-width:2px,color:#fff