# maryam010011/smartpos architecture

> Architecture diagram of the GitHub repository maryam010011/smartpos, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-27). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/maryam010011/smartpos
- Repository: https://github.com/maryam010011/smartpos

## Overview

SmartPOS is a Blazor Server point-of-sale application with an Entity Framework-backed SQL data model. Its apparent user workflow is opening the app and using the POS interface to manage products and process sales, but the README and sampled source do not show the page implementation or service layer. Shared contracts document additional planned or exposed capabilities; they are represented as capabilities, not as verified runtime flows.

Main entry points: [`SmartPOS.Web/Data/AppDbContext.cs`](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Data/AppDbContext.cs) (Entity context), [`SmartPOS.Web/Shared/Contracts.cs`](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs) (Service contracts), [`Program.cs`](https://github.com/maryam010011/smartpos/blob/main/Program.cs) (Web startup), [`Components/App.razor`](https://github.com/maryam010011/smartpos/blob/main/Components/App.razor) (Blazor app)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_web["Web application"]
  node_app["Blazor app<br/>[App.razor]"]
  node_home["Home page<br/>[Home.razor]"]
  node_startup["Web startup<br/>[Program.cs]"]
end

subgraph group_pos["POS domain"]
  node_product["Products<br/>[Product.cs]"]
  node_category["Categories<br/>[Category.cs]"]
  node_sale["Sales<br/>[Sale.cs]"]
  node_review["Reviews<br/>[Review.cs]"]
  node_supplier["Suppliers<br/>[Supplier.cs]"]
  node_saleitem["Sale items<br/>[SaleItem.cs]"]
end

subgraph group_data["Data layer"]
  node_dbcontext["Entity context<br/>[AppDbContext.cs]"]
  node_sql[("SQL database")]
end

subgraph group_capabilities["Documented capabilities"]
  node_contracts["Service contracts<br/>[Contracts.cs]"]
  node_account["Users and customers<br/>[Contracts.cs]"]
  node_promotion["Promotions<br/>[Contracts.cs]"]
  node_inventory["Inventory and purchasing<br/>[Contracts.cs]"]
  node_analytics["AI and analytics<br/>[Contracts.cs]"]
  node_tax["FBR tax invoicing<br/>[Contracts.cs]"]
  node_sentiment["Review sentiment<br/>[Contracts.cs]"]
  node_weather["Weather data<br/>[Contracts.cs]"]
end

node_operator(("POS user"))

node_operator -->|"uses"| node_home
node_startup -->|"registers"| node_dbcontext
node_startup -->|"maps"| node_app
node_dbcontext -->|"reads and writes"| node_sql
node_dbcontext -->|"stores"| node_product
node_dbcontext -->|"stores"| node_category
node_dbcontext -->|"stores"| node_sale
node_dbcontext -->|"stores"| node_saleitem
node_dbcontext -->|"stores"| node_review
node_dbcontext -->|"stores"| node_supplier
node_contracts -->|"defines interfaces"| node_account
node_contracts -->|"defines interfaces"| node_promotion
node_contracts -->|"defines interfaces"| node_inventory
node_contracts -->|"defines interfaces"| node_analytics
node_contracts -->|"defines interfaces"| node_tax
node_contracts -->|"defines interfaces"| node_sentiment
node_contracts -->|"defines DTOs"| node_weather

click node_app "https://github.com/maryam010011/smartpos/blob/main/Components/App.razor"
click node_home "https://github.com/maryam010011/smartpos/blob/main/Components/Pages/Home.razor"
click node_startup "https://github.com/maryam010011/smartpos/blob/main/Program.cs"
click node_contracts "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs"
click node_product "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Models/Product.cs"
click node_category "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Models/Category.cs"
click node_sale "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Models/Sale.cs"
click node_review "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Models/Review.cs"
click node_supplier "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Models/Supplier.cs"
click node_saleitem "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Models/SaleItem.cs"
click node_dbcontext "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Data/AppDbContext.cs"
click node_account "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs"
click node_promotion "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs"
click node_inventory "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs"
click node_analytics "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs"
click node_tax "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs"
click node_sentiment "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs"
click node_weather "https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_app,node_home,node_startup,node_operator toneBlue
class node_product,node_category,node_sale,node_review,node_supplier,node_saleitem toneAmber
class node_dbcontext,node_sql toneMint
class node_contracts,node_account,node_promotion,node_inventory,node_analytics,node_tax,node_sentiment,node_weather toneRose
```

## Components

### Web application

- [Blazor app](https://github.com/maryam010011/smartpos/blob/main/Components/App.razor): `Components/App.razor`
- [Home page](https://github.com/maryam010011/smartpos/blob/main/Components/Pages/Home.razor): `Components/Pages/Home.razor`
- [Web startup](https://github.com/maryam010011/smartpos/blob/main/Program.cs): `Program.cs`

### POS domain

- [Products](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Models/Product.cs): `SmartPOS.Web/Models/Product.cs`
- [Categories](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Models/Category.cs): `SmartPOS.Web/Models/Category.cs`
- [Sales](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Models/Sale.cs): `SmartPOS.Web/Models/Sale.cs`
- [Reviews](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Models/Review.cs): `SmartPOS.Web/Models/Review.cs`
- [Suppliers](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Models/Supplier.cs): `SmartPOS.Web/Models/Supplier.cs`
- [Sale items](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Models/SaleItem.cs): `SmartPOS.Web/Models/SaleItem.cs`

### Data layer

- [Entity context](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Data/AppDbContext.cs): `SmartPOS.Web/Data/AppDbContext.cs`
- **SQL database**

### Documented capabilities

- [Service contracts](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs): `SmartPOS.Web/Shared/Contracts.cs`
- [Users and customers](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs): `SmartPOS.Web/Shared/Contracts.cs`
- [Promotions](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs): `SmartPOS.Web/Shared/Contracts.cs`
- [Inventory and purchasing](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs): `SmartPOS.Web/Shared/Contracts.cs`
- [AI and analytics](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs): `SmartPOS.Web/Shared/Contracts.cs`
- [FBR tax invoicing](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs): `SmartPOS.Web/Shared/Contracts.cs`
- [Review sentiment](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs): `SmartPOS.Web/Shared/Contracts.cs`
- [Weather data](https://github.com/maryam010011/smartpos/blob/main/SmartPOS.Web/Shared/Contracts.cs): `SmartPOS.Web/Shared/Contracts.cs`

### Other components

- **POS user**

## Connections

- POS user → Home page: uses
- Web startup → Entity context: registers
- Web startup → Blazor app: maps
- Entity context → SQL database: reads and writes
- Entity context → Products: stores
- Entity context → Categories: stores
- Entity context → Sales: stores
- Entity context → Sale items: stores
- Entity context → Reviews: stores
- Entity context → Suppliers: stores
- Service contracts → Users and customers: defines interfaces
- Service contracts → Promotions: defines interfaces
- Service contracts → Inventory and purchasing: defines interfaces
- Service contracts → AI and analytics: defines interfaces
- Service contracts → FBR tax invoicing: defines interfaces
- Service contracts → Review sentiment: defines interfaces
- Service contracts → Weather data: defines DTOs