📝 Todo App

A full-stack to-do list application built with a Spring Boot backend and a modern React frontend. The backend provides a secure RESTful API with JWT-based authentication and per-user task management.

📁 Project Structure

todo-app/
├── backend/    # Java Spring Boot API (JWT-secured)
├── frontend/   # React client app

🛠️ Technologies Used

Backend

• Java 21+
• Spring Boot
• Spring Security
• Spring Data JPA
• MySQL
• JWT for authentication

Frontend (planned)

• React
• Axios (HTTP client)
• Bootstrap or Tailwind (optional)

🚀 Features

• ✅ User registration & login
• ✅ JWT-based authentication & authorization
• ✅ Secure endpoints by user (multi-user support)
• ✅ Create, update, delete, and view to-do tasks
• ✅ Filter tasks by completion status or due date (e.g. today)
• ✅ Validation using @Valid, @NotBlank, @FutureOrPresent
• ✅ Global error handling with structured responses
• ✅ Relational database integration (MySQL)
• ✅ Layered architecture (Controller → Service → Repository)

📡 API Endpoints

🔐 Authentication

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

👤 User

Method	Endpoint	Description
GET	/api/users/profile	Get current authenticated user

✅ Tasks (All require Authorization header)

Method	Endpoint	Description
GET	/api/tasks	Get tasks for user (supports filters)
GET	/api/tasks/{id}	Get a specific task by ID
POST	/api/tasks	Create a new task (validated input)
PUT	/api/tasks/{id}	Update an existing task
DELETE	/api/tasks/{id}	Delete a task (only if owned by the user)

▶️ Running the Backend Locally

Clone the Repository

git clone https://github.com/your-username/todo-app.git
cd todo-app

✨ Status

✅ Backend: Completed 🚧 Frontend: In development

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