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dify_admin/docs/architecture/overview.md

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Dify Admin System Architecture

Overall Architecture

graph TD
    A[Frontend] -->|API Calls| B[Backend]
    B --> C[Database]
    B --> D[External Services]
    C --> E[(PostgreSQL)]
    C --> F[(SQLite)]

Core Components

Frontend

  • Framework: Vue 3 + TypeScript
  • State Management: Pinia
  • UI Library: Element Plus
  • Routing: Vue Router

Backend

  • API Services:
    • Account Management
    • Tenant Management
    • Model Management
    • Provider Management
  • Core Modules:
    • Database Access
    • Encryption
    • Operation Logging

Data Flow

  1. User actions trigger API calls
  2. Backend processes requests with business logic
  3. Data persisted to database
  4. Responses returned to frontend
  5. Frontend updates state and UI

Security Architecture

  • JWT Authentication
  • RSA Encryption for sensitive data
  • Role-based Access Control
  • Audit logging

Deployment

  • Frontend: Static hosting (Vite)
  • Backend: Containerized microservices
  • Database: PostgreSQL (primary), SQLite (logging)