# hazim47/digital-wallet-system architecture

> Architecture diagram of the GitHub repository hazim47/digital-wallet-system, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-26). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/hazim47/digital-wallet-system
- Repository: https://github.com/hazim47/digital-wallet-system

## Overview

Wallet App provides account registration and sign-in, a dashboard, and transfers between users. The principal flow is a user entering signup or sign-in details, the frontend calling the API, and the API creating or authenticating an account; signed-in users can initiate transfers to other users. The README also documents dashboard access and automatic login. Backend route details for accounts and frontend dashboard/sign-in behavior were not sampled, so those capabilities are shown without speculative call wiring.

Main entry points: [`Frontend/src/App.jsx`](https://github.com/hazim47/digital-wallet-system/blob/main/Frontend/src/App.jsx) (Page router), [`Backend/routes/user.js`](https://github.com/hazim47/digital-wallet-system/blob/main/Backend/routes/user.js) (User endpoints), [`Backend/routes/index.js`](https://github.com/hazim47/digital-wallet-system/blob/main/Backend/routes/index.js) (API router), [`Backend/routes/account.js`](https://github.com/hazim47/digital-wallet-system/blob/main/Backend/routes/account.js) (Account endpoints)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_client["Wallet interface"]
  node_app["Page router<br/>[App.jsx]"]
  node_signup["Sign up<br/>[Signup.jsx]"]
  node_signin["Sign in<br/>[Signin.jsx]"]
  node_dashboard["Dashboard<br/>[Dashboard.jsx]"]
  node_send["Send money<br/>[SendMoney.jsx]"]
end

subgraph group_api["HTTP API"]
  node_backend["API server<br/>[index.js]"]
  node_router["API router<br/>[index.js]"]
  node_users["User endpoints<br/>[user.js]"]
  node_accounts["Account endpoints<br/>[account.js]"]
  node_auth["Token middleware<br/>[middleware.js]"]
end

subgraph group_data["Wallet data"]
  node_models["User and account models<br/>[db.js]"]
end

node_person(("User"))
node_mongo[("MongoDB")]

node_person -->|"uses"| node_app
node_app -->|"routes to"| node_signup
node_app -->|"routes to"| node_signin
node_app -->|"routes to"| node_dashboard
node_app -->|"routes to"| node_send
node_signup -->|"posts signup"| node_users
node_send -->|"posts transfer"| node_accounts
node_backend -->|"mounts"| node_router
node_router -->|"mounts"| node_users
node_router -->|"mounts"| node_accounts
node_users -->|"protects routes"| node_auth
node_users -->|"queries"| node_models
node_backend -->|"connects"| node_mongo
node_accounts -->|"records transfers"| node_mongo

click node_app "https://github.com/hazim47/digital-wallet-system/blob/main/Frontend/src/App.jsx"
click node_signup "https://github.com/hazim47/digital-wallet-system/blob/main/Frontend/src/Pages/Signup.jsx"
click node_signin "https://github.com/hazim47/digital-wallet-system/blob/main/Frontend/src/Pages/Signin.jsx"
click node_dashboard "https://github.com/hazim47/digital-wallet-system/blob/main/Frontend/src/Pages/Dashboard.jsx"
click node_send "https://github.com/hazim47/digital-wallet-system/blob/main/Frontend/src/Pages/SendMoney.jsx"
click node_backend "https://github.com/hazim47/digital-wallet-system/blob/main/Backend/index.js"
click node_router "https://github.com/hazim47/digital-wallet-system/blob/main/Backend/routes/index.js"
click node_users "https://github.com/hazim47/digital-wallet-system/blob/main/Backend/routes/user.js"
click node_accounts "https://github.com/hazim47/digital-wallet-system/blob/main/Backend/routes/account.js"
click node_auth "https://github.com/hazim47/digital-wallet-system/blob/main/Backend/middleware.js"
click node_models "https://github.com/hazim47/digital-wallet-system/blob/main/Backend/db.js"

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_signup,node_signin,node_dashboard,node_send,node_person toneBlue
class node_backend,node_router,node_users,node_accounts,node_auth,node_mongo toneAmber
class node_models toneMint
```

## Components

### Wallet interface

- [Page router](https://github.com/hazim47/digital-wallet-system/blob/main/Frontend/src/App.jsx): `Frontend/src/App.jsx`
- [Sign up](https://github.com/hazim47/digital-wallet-system/blob/main/Frontend/src/Pages/Signup.jsx): `Frontend/src/Pages/Signup.jsx`
- [Sign in](https://github.com/hazim47/digital-wallet-system/blob/main/Frontend/src/Pages/Signin.jsx): `Frontend/src/Pages/Signin.jsx`
- [Dashboard](https://github.com/hazim47/digital-wallet-system/blob/main/Frontend/src/Pages/Dashboard.jsx): `Frontend/src/Pages/Dashboard.jsx`
- [Send money](https://github.com/hazim47/digital-wallet-system/blob/main/Frontend/src/Pages/SendMoney.jsx): `Frontend/src/Pages/SendMoney.jsx`

### HTTP API

- [API server](https://github.com/hazim47/digital-wallet-system/blob/main/Backend/index.js): `Backend/index.js`
- [API router](https://github.com/hazim47/digital-wallet-system/blob/main/Backend/routes/index.js): `Backend/routes/index.js`
- [User endpoints](https://github.com/hazim47/digital-wallet-system/blob/main/Backend/routes/user.js): `Backend/routes/user.js`
- [Account endpoints](https://github.com/hazim47/digital-wallet-system/blob/main/Backend/routes/account.js): `Backend/routes/account.js`
- [Token middleware](https://github.com/hazim47/digital-wallet-system/blob/main/Backend/middleware.js): `Backend/middleware.js`

### Wallet data

- [User and account models](https://github.com/hazim47/digital-wallet-system/blob/main/Backend/db.js): `Backend/db.js`

### Other components

- **User**
- **MongoDB**

## Connections

- User → Page router: uses
- Page router → Sign up: routes to
- Page router → Sign in: routes to
- Page router → Dashboard: routes to
- Page router → Send money: routes to
- Sign up → User endpoints: posts signup
- Send money → Account endpoints: posts transfer
- API server → API router: mounts
- API router → User endpoints: mounts
- API router → Account endpoints: mounts
- User endpoints → Token middleware: protects routes
- User endpoints → User and account models: queries
- API server → MongoDB: connects
- Account endpoints → MongoDB: records transfers