E-Commerce Backend API (Go + Fiber + GORM)

🚀 Introduction

This project is a high-performance and scalable E-Commerce backend API built using Go (Golang) and the Fiber web framework. It is designed to efficiently handle user authentication, product management, shopping carts, orders, and more. The system ensures speed, security, and scalability, making it ideal for production-grade applications.

🏗️ Tech Stack & Why I Chose It

Technology	Purpose	Why?
Go (Golang)	Backend Language	High performance, concurrency support, efficient memory management
Fiber	Web Framework	Fast and lightweight, optimized for high-speed APIs
GORM	ORM for Database	Simplifies database operations, provides robust query capabilities
PostgreSQL/MySQL	Database	Reliable, scalable, and supports complex queries
Bcrypt	Password Hashing	Ensures secure storage of user credentials
JWT (JSON Web Token)	Authentication	Secure and scalable authentication mechanism
Docker (Planned)	Containerization	Ensures consistency across environments

📂 Project Structure

C:\Go-Lang\ecommerce-backend
│── internal/
│   ├── config/          # Database & App Configurations
│   ├── models/          # Data Models (User, Product, Order, etc.)
│   ├── handlers/        # API Handlers (Business Logic)
│   ├── routes/          # Route Definitions
│── pkg/                 # Utility Functions (Helper Methods, Middleware, etc.)
│── main.go              # Entry Point (Main.go)
│── .env                 # Environment Variables (Database URL, Secrets, etc.)
│── go.mod               # Go Module File
│── TODO.md              # Pending Tasks & Features
│── README.md            # Project Documentation

✅ Features Implemented So Far

1️⃣ User Authentication & Authorization

• Secure user registration with Bcrypt password hashing.
• JWT-based authentication for secure API access.
• User roles (Admin & Customer) to restrict access to specific actions.

2️⃣ Product Management

• CRUD operations for products (Add, Update, Delete, Fetch).
• Admin-only access for adding and updating products.
• Users can browse the product catalog.

3️⃣ Shopping Cart System

• Users can add, remove, and update cart items.
• The cart persists per user and is linked to their account.

4️⃣ Order Processing

• Users can checkout their cart, converting it into an order.
• Orders contain order items, total price, and status.
• Admin can update order status (e.g., Pending → Shipped → Delivered).

5️⃣ Fetching Order History

• Users can view their past orders with details.
• Each order includes ordered items, prices, and status updates.

🚀 Upcoming Features (Planned)

🔜 Payment Integration (Stripe/PayPal for secure transactions)
🔜 Admin Dashboard (For managing products & orders)
🔜 Docker Support (For easy deployment & environment consistency)
🔜 Unit Testing & API Testing (Ensuring reliability)

⚡ How to Run the Project

1️⃣ Clone the Repository

git clone https://github.com/your-username/ecommerce-backend.git
cd ecommerce-backend

2️⃣ Install Dependencies

go mod tidy

3️⃣ Set Up Environment Variables

Create a .env file and configure the database connection:

DB_HOST=localhost
DB_PORT=5432
DB_USER=root
DB_PASSWORD=yourpassword
DB_NAME=ecommerce_db
JWT_SECRET=your-secret-key

4️⃣ Run Migrations (Initialize Database)

go run migrate.go

5️⃣ Start the Server

go run main.go

API will be running at: http://localhost:8000

📌 API Endpoints

User Authentication

Method	Endpoint	Description
POST	/ecom/auth/register	Register a new user
POST	/ecom/auth/login	Authenticate user & get JWT token

Products

Method	Endpoint	Description
POST	/ecom/products	Add a new product (Admin only)
GET	/ecom/products	Get all products
PUT	/ecom/products/:id	Update product (Admin only)
DELETE	/ecom/products/:id	Delete product (Admin only)

Cart

Method	Endpoint	Description
POST	/ecom/cart	Add item to cart
GET	/ecom/cart	View cart items
DELETE	/ecom/cart/:id	Remove item from cart

Orders

Method	Endpoint	Description
POST	/ecom/orders	Checkout cart & place order
GET	/ecom/orders	Get user order history
PUT	/ecom/orders/:id/status	Update order status (Admin only)

👥 Contributors

• RAHUL SHEKHAWAT(Lead Developer)
• Open to contributors! Feel free to submit PRs.

📜 License

This project is open-source and licensed under the MIT License.

---

📢 Have suggestions or improvements? Feel free to open an issue or contribute! 🚀