🛍️ GoCommerce — E-commerce Backend API (Go + PostgreSQL)

A fully functional e-commerce backend built with Golang, PostgreSQL, and JWT authentication.
This project is designed to power a modern e-commerce platform with features like product management, user authentication, and order handling.

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🚀 Tech Stack

• Language: Go (Golang)
• Database: PostgreSQL
• Query: database/sql + pgx driver
• Authentication: JWT (JSON Web Token)
• Password Hashing: bcrypt
• API Format: RESTful JSON
• Architecture: Domain-driven design
• Environment Management: .env file
• Dependency Management: Go Modules

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🗂️ Project Structure

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🔗 API Endpoints

👤 Auth Routes

Method	Endpoint	Description
POST	/api/auth/register	Register a new user
POST	/api/auth/login	Login user and receive JWT token

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🛒 Product Routes

Method	Endpoint	Description	Access
GET	/api/products	Get all products	Public
GET	/api/products/:id	Get product by ID	Public
POST	/api/products	Create product	Admin
PUT	/api/products/:id	Update product	Admin
DELETE	/api/products/:id	Delete product	Admin

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📦 Order Routes

Method	Endpoint	Description	Access
GET	/api/orders	Get all orders (Admin)	Admin
POST	/api/orders	Create a new order	Authenticated User
GET	/api/orders/:id	Get order details	Authenticated User
PUT	/api/orders/:id	Update order status	Admin

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🧑‍💼 Admin Routes

Method	Endpoint	Description	Access
GET	/api/admin/dashboard	Get summary stats (users, sales, orders)	Admin
GET	/api/admin/users	Get all registered users	Admin
PUT	/api/admin/users/:id/role	Update user role	Admin

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⚙️ Environment Variables

Create a .env file in your root directory:

# PostgreSQL
DB_HOST=localhost
DB_PORT=5432
DB_USER=postgres
DB_PASSWORD=yourpassword
DB_NAME=gocommerce

# JWT
JWT_SECRET=your_jwt_secret_key
JWT_EXPIRE_HOURS=24

# Server
PORT=8080