MVVM Directory Structure for Point of Sale (POS) System
#mvvm#swift#ios
Pheak Pheasa

Pheak Pheasa @pheak_pheasa

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Joined:
Mar 12, 2024

MVVM Directory Structure for Point of Sale (POS) System

Publish Date: May 7
1 1

Here’s a standard and scalable directory structure for a Point of Sale (POS) system using MVVM architecture in Swift, with clean separation of concerns and real-world modularity:

POSApp/
│
├── App/
│   ├── AppDelegate.swift
│   ├── SceneDelegate.swift
│   └── Environment/
│       └── AppEnvironment.swift
│
├── Coordinators/
│   ├── AppCoordinator.swift
│   └── Modules/
│       ├── AuthCoordinator.swift
│       ├── ProductCoordinator.swift
│       ├── CartCoordinator.swift
│       └── CheckoutCoordinator.swift
│
├── Modules/
│   ├── Auth/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Service/
│   │
│   ├── Product/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Service/
│   │
│   ├── Cart/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Service/
│   │
│   ├── Checkout/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Service/
│   │
│   └── Dashboard/  ← For reporting/sales summary
│       ├── View/
│       ├── ViewModel/
│       ├── Model/
│       └── Service/
│
├── Services/
│   ├── API/
│   │   ├── APIClient.swift
│   │   └── Endpoints.swift
│   ├── Persistence/
│   │   ├── CoreDataStack.swift
│   │   └── LocalStorage.swift
│   └── Payment/
│       └── QRPaymentService.swift
│
├── Helpers/
│   ├── FormatterHelper.swift
│   ├── Validator.swift
│   └── ImagePickerHelper.swift
│
├── Components/
│   ├── Common/
│   │   ├── POSButton.swift
│   │   └── POSLabel.swift
│   └── ReusableViews/
│       └── ProductCardView.swift
│
├── Resources/
│   ├── Assets.xcassets
│   ├── Localizable.strings
│   └── Fonts/
│
├── Extensions/
│   ├── UIView+Ext.swift
│   ├── String+Ext.swift
│   └── UIColor+Ext.swift
│
├── Bindings/
│   └── ReactiveBinder.swift (for RxSwift, Combine, or custom bindings)
│
├── Middlewares/
│   └── AuthMiddleware.swift
│
├── Protocols/
│   └── Coordinatable.swift
│
├── Utils/
│   └── Logger.swift
│
└── Tests/
    ├── Unit/
    └── UI/
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Key Principles:

  • Modularized per feature: Each Module/ has its own MVC elements.
  • MVVM: Clear separation of View, ViewModel, and Model.
  • Coordinator Pattern: Clean navigation handling.
  • Scalable: Easy to expand for inventory, employee management, reporting, etc.

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