🔗 ShortURLApp

A URL shortening web application built with Spring Boot that allows users to register, log in, shorten long URLs, and manage their shortened links. The app supports role-based access control and is designed with a server-rendered HTML UI using Thymeleaf.

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🚀 Features

• 🔒 User Registration & Login (Spring Security + Thymeleaf)
• ✂️ Shorten URLs with generated short codes
• 🔄 Redirect from Short URL to Original URL
• 🧑‍💼 Role-Based Access Control (ROLE_USER, ROLE_ADMIN)
• 📦 Persistent Storage (e.g., PostgreSQL)
• 🌐 Thymeleaf-based Web Interface

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🛠️ Tech Stack

• Java 17+
• Spring Boot 3
• Spring MVC
• Spring Security (Form Login)
• Thymeleaf
• PostgreSQL
• Flyway (for database migrations)
• Maven

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🖼️ Web Pages

• /register → User registration form
• /login → Custom login form
• / → Homepage and shortening form (public)
• /my-urls → View and manage your own URLs (protected)
• /admin/** → Admin-only features (optional)
• /s/{shortCode} → Redirect to original URL

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🔐 Security

• Users are authenticated via form-based login
• User roles are defined using a custom Role enum:

  public enum Role {
      ROLE_USER, ROLE_ADMIN
  }

How to Run Locally

Clone the project

git clone https://github.com/yourusername/shorturlapp.git cd shorturlapp

Build the project

./mvnw clean install

Run the application

./mvnw spring-boot:run

🧪 Database Configuration

To run the project locally with PostgreSQL:

1. Create a PostgreSQL database named shorturlapp
2. Copy application-example.properties to application.properties
3. Update it with your own database username and password