🧾 Invoice Generator – Node.js Backend

A RESTful backend service for managing clients, products, and invoices.
Built using Node.js, Express, and MongoDB. This backend powers a Flutter-based invoice generator application.

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🚀 Features

• 🔐 JWT-based user authentication
• 👤 Client management (Create, Read, Update, Delete)
• 🛍 Product / service management
• 🧾 Invoice creation & tracking
• 📊 Basic invoice analytics
• 🔎 Pagination & filtering support
• 🛡 Protected routes with middleware

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🛠 Tech Stack

• Node.js
• Express.js
• MongoDB
• Mongoose
• JWT Authentication
• EJS (for invoice preview views)

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📂 Project Structure

Invoice_NodeJs-/
├──controllers/
│ └── # Route logic
├── middleware/
│ └── # Authentication & error handling
├── models/
│ └── # Mongoose schemas
├── routes/
│ └── # API routes
├── utils/
│ └── # Helper utilities
├── views/
│ └── # EJS invoice templates
├── data/
│ └── # Sample / seed data
├── app.js
├── index.js
├── config.env.example
└── package.json

⚙️ Prerequisites

Ensure you have the following installed:

• Node.js (v14 or higher)
• npm
• MongoDB (local or cloud)

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🔐 Environment Variables

Create a config.env or .env file in the root directory: PORT=5000 MONGO_URI=your_mongodb_connection_string JWT_SECRET=your_jwt_secret_key

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▶️ Installation & Running Locally

git clone https://github.com/nishank23/Invoice_NodeJs-.git
cd Invoice_NodeJs-
npm install
npm start


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