Admin Module – Low Level Design

👨‍💼 Step 9: Admin Module – Low-Level Design (LLD)

This document outlines the low-level design for the admin feature module responsible for managing products, orders, users, and analytics.

📦 Module Structure

src/
├── app/
│   └── features/
│       └── admin/
│           ├── components/
│           │   ├── dashboard/
│           │   ├── product-management/
│           │   ├── order-management/
│           │   ├── user-management/
│           │   └── analytics/
│           ├── services/
│           │   ├── admin.service.ts
│           │   ├── product.service.ts
│           │   ├── order.service.ts
│           │   └── user.service.ts
│           ├── store/
│           │   ├── admin.actions.ts
│           │   ├── admin.reducer.ts
│           │   ├── admin.effects.ts
│           │   └── admin.selectors.ts
│           ├── models/
│           │   └── admin.model.ts
│           ├── admin-routing.module.ts
│           └── admin.module.ts

🧱 Component Breakdown

🏠 AdminDashboardComponent

• Displays summary stats: total sales, orders, users, products
• Graphs & charts for analytics

📦 ProductManagementComponent

• CRUD for products
• Bulk import/export CSV
• Category and inventory management

📋 OrderManagementComponent

• List & filter orders
• Update order status
• Refunds and cancellations

🙍 UserManagementComponent

• Manage user roles and permissions
• View user activity logs

📊 AnalyticsComponent

• Sales trends
• Popular products
• User engagement metrics

🧪 Services

• AdminService: Central admin logic & API aggregation
• ProductService: Product-related API calls
• OrderService: Order management API
• UserService: User data & permissions API

🧩 NgRx Store (optional)

• Actions, reducers, effects for admin data flow
• Selectors for efficient state querying

🔄 API Contracts (examples)

🔐 Security & UX

• Restrict all routes to admin roles using route guards
• Confirm destructive actions with modal dialogs
• Paginate large lists to optimize performance

✅ Responsibilities Summary