# ali-hassan1590/tradingapp architecture

> Architecture diagram of the GitHub repository ali-hassan1590/tradingapp, 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/ali-hassan1590/tradingapp
- Repository: https://github.com/ali-hassan1590/tradingapp

## Overview

Trading Backend is a Django REST API for paper trading. A client reaches app endpoints through the root router; the documented buy-order workflow validates a request, then order execution coordinates wallet funds, portfolio positions, and a trade notification before returning a response. Other product stages include account authentication, market browsing, wallet management, portfolio tracking, and analytics. The order, wallet, portfolio, authentication, and notification service relationships are supported by sampled source or explicit README documentation; other app internals were not sampled, so their wiring is left unspecified.

Main entry points: [`backend/config/urls.py`](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/config/urls.py) (API router), [`backend/apps/orders/services.py`](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/orders/services.py) (Order execution), [`backend/apps/wallet/services.py`](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/wallet/services.py) (Wallet operations), [`backend/apps/portfolio/services.py`](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/portfolio/services.py) (Portfolio operations)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_api["API and identity"]
  node_router["API router<br/>[urls.py]"]
  node_auth_api["Authentication API<br/>[views.py]"]
  node_auth_service["Authentication service<br/>[services.py]"]
  node_accounts["Accounts<br/>[models.py]"]
end

subgraph group_trading["Trading lifecycle"]
  node_market_api["Market API<br/>[views.py]"]
  node_market_data["Market assets<br/>[models.py]"]
  node_orders_api["Orders API<br/>[views.py]"]
  node_order_service["Order execution<br/>[services.py]"]
  node_order_data["Orders and trades<br/>[models.py]"]
end

subgraph group_accounting["Wallet and portfolio"]
  node_wallet_api["Wallet API<br/>[views.py]"]
  node_wallet_service["Wallet operations<br/>[services.py]"]
  node_wallet_data["Wallet ledger<br/>[models.py]"]
  node_portfolio_api["Portfolio API<br/>[views.py]"]
  node_portfolio_service["Portfolio operations<br/>[services.py]"]
  node_portfolio_data["Positions<br/>[models.py]"]
end

subgraph group_insights["Alerts and analytics"]
  node_notifications_api["Notifications API<br/>[views.py]"]
  node_notification_service["Notification service<br/>[services.py]"]
  node_notification_data["Notifications<br/>[models.py]"]
  node_analytics_api["Analytics API<br/>[views.py]"]
end

node_client(("Trading client"))
node_database[("Application database")]

node_client -->|"sends requests"| node_router
node_router -->|"routes auth"| node_auth_api
node_router -->|"routes market"| node_market_api
node_router -->|"routes orders"| node_orders_api
node_router -->|"routes wallet"| node_wallet_api
node_router -->|"routes portfolio"| node_portfolio_api
node_router -->|"routes alerts"| node_notifications_api
node_router -->|"routes analytics"| node_analytics_api
node_auth_api -->|"calls service"| node_auth_service
node_auth_service -->|"records login"| node_accounts
node_orders_api -->|"calls service"| node_order_service
node_order_service -->|"locks or moves funds"| node_wallet_service
node_order_service -->|"updates position"| node_portfolio_service
node_order_service -->|"creates alert"| node_notification_service
node_order_service -->|"reads asset price"| node_market_data
node_wallet_api -.->|"uses operations"| node_wallet_service
node_portfolio_api -.->|"uses operations"| node_portfolio_service
node_wallet_service -->|"updates ledger"| node_wallet_data
node_portfolio_service -->|"updates positions"| node_portfolio_data
node_notification_service -->|"creates alerts"| node_notification_data
node_order_service -->|"stores orders and trades"| node_order_data
node_auth_service -->|"writes login history"| node_database
node_order_service -->|"reads and writes"| node_database
node_wallet_service -->|"reads and writes"| node_database
node_portfolio_service -->|"reads and writes"| node_database
node_notification_service -->|"writes alerts"| node_database
node_market_api -.->|"serves market data"| node_market_data

click node_router "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/config/urls.py"
click node_auth_api "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/authentication/views.py"
click node_auth_service "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/authentication/services.py"
click node_accounts "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/accounts/models.py"
click node_market_api "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/market/views.py"
click node_market_data "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/market/models.py"
click node_orders_api "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/orders/views.py"
click node_order_service "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/orders/services.py"
click node_order_data "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/orders/models.py"
click node_wallet_api "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/wallet/views.py"
click node_wallet_service "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/wallet/services.py"
click node_wallet_data "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/wallet/models.py"
click node_portfolio_api "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/portfolio/views.py"
click node_portfolio_service "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/portfolio/services.py"
click node_portfolio_data "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/portfolio/models.py"
click node_notifications_api "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/notifications/views.py"
click node_notification_service "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/notifications/services.py"
click node_notification_data "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/notifications/models.py"
click node_analytics_api "https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/analytics/views.py"

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_router,node_auth_api,node_auth_service,node_accounts,node_client toneBlue
class node_market_api,node_market_data,node_orders_api,node_order_service,node_order_data,node_database toneAmber
class node_wallet_api,node_wallet_service,node_wallet_data,node_portfolio_api,node_portfolio_service,node_portfolio_data toneMint
class node_notifications_api,node_notification_service,node_notification_data,node_analytics_api toneRose
```

## Components

### API and identity

- [API router](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/config/urls.py): `backend/config/urls.py`
- [Authentication API](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/authentication/views.py): `backend/apps/authentication/views.py`
- [Authentication service](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/authentication/services.py): `backend/apps/authentication/services.py`
- [Accounts](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/accounts/models.py): `backend/apps/accounts/models.py`

### Trading lifecycle

- [Market API](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/market/views.py): `backend/apps/market/views.py`
- [Market assets](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/market/models.py): `backend/apps/market/models.py`
- [Orders API](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/orders/views.py): `backend/apps/orders/views.py`
- [Order execution](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/orders/services.py): `backend/apps/orders/services.py`
- [Orders and trades](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/orders/models.py): `backend/apps/orders/models.py`

### Wallet and portfolio

- [Wallet API](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/wallet/views.py): `backend/apps/wallet/views.py`
- [Wallet operations](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/wallet/services.py): `backend/apps/wallet/services.py`
- [Wallet ledger](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/wallet/models.py): `backend/apps/wallet/models.py`
- [Portfolio API](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/portfolio/views.py): `backend/apps/portfolio/views.py`
- [Portfolio operations](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/portfolio/services.py): `backend/apps/portfolio/services.py`
- [Positions](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/portfolio/models.py): `backend/apps/portfolio/models.py`

### Alerts and analytics

- [Notifications API](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/notifications/views.py): `backend/apps/notifications/views.py`
- [Notification service](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/notifications/services.py): `backend/apps/notifications/services.py`
- [Notifications](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/notifications/models.py): `backend/apps/notifications/models.py`
- [Analytics API](https://github.com/ali-hassan1590/tradingapp/blob/main/backend/apps/analytics/views.py): `backend/apps/analytics/views.py`

### Other components

- **Trading client**
- **Application database**

## Connections

- Trading client → API router: sends requests
- API router → Authentication API: routes auth
- API router → Market API: routes market
- API router → Orders API: routes orders
- API router → Wallet API: routes wallet
- API router → Portfolio API: routes portfolio
- API router → Notifications API: routes alerts
- API router → Analytics API: routes analytics
- Authentication API → Authentication service: calls service
- Authentication service → Accounts: records login
- Orders API → Order execution: calls service
- Order execution → Wallet operations: locks or moves funds
- Order execution → Portfolio operations: updates position
- Order execution → Notification service: creates alert
- Order execution → Market assets: reads asset price
- Wallet API → Wallet operations: uses operations
- Portfolio API → Portfolio operations: uses operations
- Wallet operations → Wallet ledger: updates ledger
- Portfolio operations → Positions: updates positions
- Notification service → Notifications: creates alerts
- Order execution → Orders and trades: stores orders and trades
- Authentication service → Application database: writes login history
- Order execution → Application database: reads and writes
- Wallet operations → Application database: reads and writes
- Portfolio operations → Application database: reads and writes
- Notification service → Application database: writes alerts
- Market API → Market assets: serves market data