https://github.com/coslynx/borrow-lend-ledger

Tracks loans between marketplace users showing who owes what... Created at https://coslynx.com
https://github.com/coslynx/borrow-lend-ledger

api backend code-generation coslynx database debt-management developer-tools devops fintech frontend full-stack javascript lending-borrowing loan-tracker machine-learning marketplace mvp peer-to-peer transaction-tracker web-development

Last synced: about 2 months ago
JSON representation

Tracks loans between marketplace users showing who owes what... Created at https://coslynx.com

Host: GitHub
URL: https://github.com/coslynx/borrow-lend-ledger
Owner: coslynx
Created: 2025-04-03T10:52:05.000Z (about 1 year ago)
Default Branch: main
Last Pushed: 2025-04-03T11:14:30.000Z (about 1 year ago)
Last Synced: 2025-04-09T15:58:52.368Z (about 1 year ago)
Topics: api, backend, code-generation, coslynx, database, debt-management, developer-tools, devops, fintech, frontend, full-stack, javascript, lending-borrowing, loan-tracker, machine-learning, marketplace, mvp, peer-to-peer, transaction-tracker, web-development
Language: TypeScript
Size: 40 KB
Stars: 0
Watchers: 1
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md

Awesome Lists containing this project

README

Borrow Lend Tracker MVP

A web application to track money borrowed and lent between individuals, maintaining a clear transaction ledger and summary.

Developed with the software and tools below.

## 📑 Table of Contents
- 📍 Overview
- 📦 Features
- 📂 Structure
- 💻 Installation
- 🏗️ Usage
- 🌐 Hosting
- 🤝 Contributing (Placeholder)
- 📜 API Documentation (Conceptual Backend)
- 📄 License
- 👏 Authors

## 📍 Overview
This repository contains the Minimum Viable Product (MVP) for a **Borrow/Lend Tracker** web application. The primary goal is to provide a simple, efficient way for individuals (e.g., users within web marketplaces) to record and track money exchanged between known parties. It maintains a clear ledger ("sheet") of who borrowed how much from whom and calculates summaries of net debts and credits per person.

The frontend is built using **React** with **TypeScript** for type safety, bootstrapped with **Vite** for a fast development experience. **Tailwind CSS** is used for utility-first styling. Global state, including the transaction list and calculated summaries, is managed using **React Context API**. Data persistence relies on interaction with a **conceptual backend API** via **Axios**.

## 📦 Features
| | Feature | Description |
|----|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------|
| ⚙️ | **Architecture** | Component-based React frontend using Vite. Features separation into pages (`pages`), reusable UI elements (`components`), state management (`context`), and API interaction layer (`services`). |
| 📄 | **Documentation** | This README provides an overview, setup instructions, usage details, and conceptual API definition. Code includes JSDoc comments where applicable. |
| 🔗 | **Dependencies** | Core dependencies include `react`, `react-dom`, `react-router-dom`, `axios`. Dev dependencies include `vite`, `typescript`, `tailwindcss`, `eslint`. |
| 🧩 | **Modularity** | Clear separation of concerns: Pages for views, Components for UI elements, Context for global state, Services for API calls. |
| ✨ | **Core Functionality**| Add new transactions (lender, borrower, amount). View a chronological ledger of all transactions. View an aggregated summary of who owes whom. |
| 🎨 | **Styling** | Utility-first styling with Tailwind CSS, adhering to a consistent dark theme. |
| 🧭 | **Routing** | Client-side routing handled by `react-router-dom` for navigation between Ledger, Add Transaction, and Summary pages. |
| 💾 | **State Management**| Global application state (transactions, summaries, loading/error status) managed centrally via React Context API (`TransactionContext`). |
| 📡 | **API Interaction**| Uses Axios (`src/services/api.ts`) to communicate with a conceptual backend API for fetching and creating transactions. |
| ✅ | **Validation** | Includes basic client-side form validation in `TransactionForm.tsx` (required fields, positive amount, lender != borrower). |

## 📂 Structure
```text
/
├── public/
│ └── index.html # HTML entry point
├── src/
│ ├── components/ # Reusable UI components
│ │ ├── Button.tsx
│ │ ├── Input.tsx
│ │ ├── SummaryDisplay.tsx
│ │ ├── TransactionForm.tsx
│ │ └── TransactionList.tsx
│ ├── context/ # React Context for global state
│ │ └── TransactionContext.tsx
│ ├── pages/ # Page-level components associated with routes
│ │ ├── AddTransactionPage.tsx
│ │ ├── LedgerPage.tsx
│ │ └── SummaryPage.tsx
│ ├── services/ # API interaction logic
│ │ └── api.ts
│ ├── App.tsx # Root application component with routing setup
│ ├── index.css # Global styles and Tailwind directives
│ ├── main.tsx # Application entry point (renders App into DOM)
│ └── vite-env.d.ts # Vite environment variable type definitions
├── .env # Environment variables (API base URL) - *DO NOT COMMIT*
├── .env.example # Example environment variables file
├── .eslintrc.cjs # ESLint configuration (if generated/added)
├── .gitignore # Git ignore rules
├── commands.json # Descriptions of npm scripts
├── index.html # Link to public/index.html (Vite convention)
├── package.json # Project dependencies and scripts
├── postcss.config.js # PostCSS configuration (for Tailwind/Autoprefixer)
├── README.md # This file
├── startup.sh # Optional development server startup script
├── tailwind.config.js # Tailwind CSS configuration
├── tsconfig.json # TypeScript compiler configuration
└── vite.config.ts # Vite build tool configuration
```

## 💻 Installation
> [!WARNING]
> ### 🔧 Prerequisites
> - **Node.js:** LTS version recommended (e.g., v18.x or v20.x). Check with `node -v`.
> - **npm:** Usually included with Node.js. Check with `npm -v`.
> - **Git:** For cloning the repository.
> - **Conceptual Backend API:** This frontend requires a running backend API service that implements the endpoints defined in [API Documentation](#-api-documentation-conceptual-backend). The frontend expects this API to be accessible at the URL specified in the `.env` file.

### 🚀 Setup Instructions
1. **Clone the repository:**
```bash
git clone https://github.com/coslynx/borrow-lend-ledger.git
cd borrow-lend-ledger
```
2. **Install dependencies:**
```bash
npm install
```
3. **Configure environment variables:**
* Copy the example environment file:
```bash
cp .env.example .env
```
* Edit the `.env` file and set the `VITE_API_BASE_URL` to the base URL of your running **conceptual backend API**.
```dotenv
# Example .env content
VITE_API_BASE_URL=http://localhost:3001/api # Replace with your actual backend API URL
```

## 🏗️ Usage
### 🏃‍♂️ Running the MVP
1. **Ensure the conceptual backend API is running** and accessible at the URL specified in your `.env` file.
2. **Start the frontend development server:**
```bash
npm run dev
```
This command (defined in `package.json` and described in `commands.json`) starts the Vite development server, typically on `http://localhost:5173`.

3. **Access the application** in your web browser at the URL provided by Vite (e.g., `http://localhost:5173`).

> [!TIP]
> ### ⚙️ Configuration
> - The primary configuration is the backend API endpoint set in the `.env` file via `VITE_API_BASE_URL`. Vite uses this during build time and makes it available to the application.
> - `vite.config.ts`: Configures the Vite build tool (dev server port, build options).
> - `tailwind.config.js`: Configures Tailwind CSS theme and content scanning.
> - `tsconfig.json`: Configures the TypeScript compiler options.

### 📚 Available Scripts

You can use the following scripts defined in `package.json` (see `commands.json` for descriptions):

- `npm run dev`: Starts the development server.
- `npm run build`: Creates a production build in the `dist/` directory.
- `npm run lint`: Lints the codebase using ESLint.
- `npm run typecheck`: Performs TypeScript type checking without emitting files.

## 🌐 Hosting
### 🚀 Deployment Instructions
This frontend application is built as a static site and can be deployed to various static hosting providers.

#### Example: Deploying to Netlify / Vercel
1. **Build the application:**
```bash
npm run build
```
This creates an optimized production build in the `dist/` directory.
2. **Deploy the `dist` directory:**
* **Netlify:** Use the Netlify CLI (`netlify deploy --prod`) or connect your Git repository via the Netlify dashboard. Set the build command to `npm run build` and the publish directory to `dist`.
* **Vercel:** Use the Vercel CLI (`vercel --prod`) or connect your Git repository via the Vercel dashboard. Vercel typically auto-detects Vite projects. Ensure the Output Directory is set to `dist`.
3. **Set Environment Variables:** Configure the `VITE_API_BASE_URL` environment variable in your hosting provider's settings. This variable is needed **during the build process** on the hosting platform.

### 🔑 Environment Variables
- **`VITE_API_BASE_URL` (Required at Build Time):** The base URL of the backend API the deployed frontend will communicate with.
Example: `https://your-api.example.com/api`

## 🤝 Contributing (Placeholder)
> [!NOTE]
> As this is an AI-generated MVP, direct contributions are not typically accepted in the conventional sense. However, feedback and suggestions can be directed to CosLynx.com. If forking, follow standard Git practices.

## 📜 API Documentation (Conceptual Backend)
The frontend (`src/services/api.ts`) expects a backend API with the following endpoints. **This MVP only includes the frontend code; the backend must be implemented separately.**

### 🔍 Endpoints

- **`GET /transactions`**
- **Description:** Retrieves all recorded transactions.
- **Method:** `GET`
- **Response Body (Success - 200 OK):** `application/json`
```json
[
{
"id": "tx_123",
"lender": "Alice",
"borrower": "Bob",
"amount": 50.00,
"createdAt": "2023-10-27T10:00:00.000Z"
},
{
"id": "tx_456",
"lender": "Charlie",
"borrower": "Alice",
"amount": 25.50,
"createdAt": "2023-10-28T11:30:00.000Z"
}
]
```
- **Response Body (Error):** Standard HTTP error codes (e.g., 500 Internal Server Error).

- **`POST /transactions`**
- **Description:** Creates a new transaction record.
- **Method:** `POST`
- **Request Body:** `application/json`
```json
{
"lender": "David",
"borrower": "Eve",
"amount": 100.75
}
```
- **Response Body (Success - 201 Created):** `application/json` (The newly created transaction object)
```json
{
"id": "tx_789",
"lender": "David",
"borrower": "Eve",
"amount": 100.75,
"createdAt": "2023-10-29T14:00:00.000Z"
}
```
- **Response Body (Error):** Standard HTTP error codes (e.g., 400 Bad Request for invalid data, 500 Internal Server Error).

### 🔒 Authentication
- No authentication is implemented or expected by the frontend MVP. The conceptual backend API is assumed to be open or handle authentication independently if required.

### 📝 Examples (Conceptual `curl`)

```bash
# Get all transactions
curl http://localhost:3001/api/transactions

# Add a new transaction
curl -X POST http://localhost:3001/api/transactions \
-H "Content-Type: application/json" \
-d '{"lender": "Frank", "borrower": "Grace", "amount": 15.00}'
```

> [!NOTE]
> ## 📜 License & Attribution
>
> ### 📄 License
> This Minimum Viable Product (MVP) is licensed under the [GNU AGPLv3](https://choosealicense.com/licenses/agpl-3.0/) license.
>
> ### 🤖 AI-Generated MVP
> This MVP was entirely generated using artificial intelligence through [CosLynx.com](https://coslynx.com).
>
> No human was directly involved in the coding process of the repository: borrow-lend-ledger
>
> ### 📞 Contact
> For any questions or concerns regarding this AI-generated MVP, please contact CosLynx at:
> - Website: [CosLynx.com](https://coslynx.com)
> - Twitter: [@CosLynxAI](https://x.com/CosLynxAI)