Personal Finance Dashboard - Backend

This is the backend API for the Personal Finance Dashboard application.

Prerequisites

Node.js (v14.0.0 or later)
npm (v6.0.0 or later)
MongoDB (v4.0 or later)

Installation

Navigate to the backend directory:
```
cd personal-finance-backend
```
Install dependencies:
```
npm install
```

Create a .env file in the backend root directory with the following content:

PORT=5000
MONGODB_URI=mongodb://localhost:27017/personal_finance
JWT_SECRET=your_jwt_secret_here
FRONTEND_URL=http://localhost:3000

Replace your_jwt_secret_here with a secure random string.

Security Features

CORS: Configured with specific origin, methods, and allowed headers
Helmet: Implemented for improved HTTP security headers
Winston Logger: Integrated for better error tracking and debugging
Password Hashing: Secure password hashing using bcrypt
JWT Authentication: JSON Web Tokens for secure user authentication
Environment Variables: Sensitive information stored in .env file

Running the Application

Start the backend server:

npm run dev

The server will start on the port specified in your .env file (default: 5000).

API Endpoints

POST /api/auth/register - Register a new user
POST /api/auth/login - User login
GET /api/transactions - Get all transactions for the logged-in user
POST /api/transactions - Add a new transaction
PUT /api/transactions/:id - Update a transaction
DELETE /api/transactions/:id - Delete a transaction

For more detailed API documentation, please refer to the API.md file in this directory.