Fullstack Application

This is a fullstack web application built using Spring Boot for the backend and Next.js for the frontend. It includes features such as user authentication, data management, and REST API integration.

Table of Contents

• Technologies
• Features
• Project Structure
• Getting Started
• API Documentation
• Environment Variables
• Deployment
• License

Technologies

• Backend: Spring Boot, Java
• Frontend: Next.js, React
• Database: PostgreSQL (or MySQL, MongoDB, etc.)
• Authentication: JWT (JSON Web Token)
• Docker: For containerization of the application
• Other: REST API, Axios (for API calls), Tailwind CSS (for styling)

Features

• User authentication (sign up, login, JWT-based authentication)
• Role-based access control
• CRUD operations on resources
• Real-time data with WebSockets (if applicable)
• Dockerized setup for easier development and deployment
• Responsive UI with Next.js and Tailwind CSS

Project Structure

.
├── backend                 # Spring Boot backend
│   ├── src/main            # Java source code
│   ├── src/resources       # Application configurations
│   └── pom.xml             # Maven dependencies
├── frontend                # Next.js frontend
│   ├── pages               # Next.js pages (routes)
│   ├── components          # React components
│   ├── public              # Static assets
│   ├── styles              # Tailwind CSS styles
│   └── package.json        # Node.js dependencies
├── docker-compose.yml      # Docker Compose file
└── README.md               # Project documentation

Getting Started

Prerequisites

• Java 17+
• Node.js 16+
• Docker

Running the Application Locally Clone the repository:

git clone https://github.com/your-repo/fullstack-app.git

cd fullstack-app

Backend (Spring Boot):

cd backend

./mvnw clean install

Run the Spring Boot application:

./mvnw spring-boot:run

The backend server will start at http://localhost:8080.

Frontend (Next.js):

Navigate to the frontend folder:

cd ../frontend
npm install

Run the Next.js development server:

npm run dev
The frontend server will start at http://localhost:3000.

Run with Docker Compose:

Alternatively, you can run both the backend and frontend using Docker Compose:

docker-compose up

This will start both the Spring Boot backend and Next.js frontend in containers.

API Documentation

The backend REST APIs can be accessed at http://localhost:8081/api.

Example Endpoints:

POST /api/auth/login: User login
GET /api/users: Get all users (admin only)
POST /api/products: Create a new product

For detailed API documentation, you can access Swagger at http://localhost:8080/swagger-ui.html.

Environment Variables

Create a .env file in both the backend and frontend directories to set the following environment variables:

Backend

# backend/.env

SPRING_DATASOURCE_URL=jdbc:postgresql://localhost:5432/mydb
SPRING_DATASOURCE_USERNAME=your_db_username
SPRING_DATASOURCE_PASSWORD=your_db_password
JWT_SECRET=your_jwt_secret_key

Frontend

# frontend/.env.local

NEXT_PUBLIC_API_URL=http://localhost:8080/api

Deployment

Using Docker You can deploy the application using Docker. Ensure you have the environment variables set up in a .env file or pass them directly in the Docker Compose configuration.

Build the Docker images:

docker-compose build

Run the containers:

docker-compose up -d

Traditional Deployment For deploying the Spring Boot backend and Next.js frontend separately, you can:

Package the Spring Boot application into a JAR file:

./mvnw clean package

Deploy the target/*.jar file to your preferred cloud provider (e.g., AWS, Heroku, etc.).

For Next.js, you can build the static files using:

npm run build
npm start

Serve the Next.js app using Vercel, Netlify, or any static hosting provider.

License

This project is licensed under the MIT License. See the LICENSE file for details.