Task Manager API

A Spring Boot-based RESTful Task Management System that enables users to securely manage tasks — create, update, delete, and track progress — with JWT-based authentication, database persistence, and container-ready architecture.

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Features

User Authentication & Authorization

• Secure login/register using Spring Security + JWT
• Role-based access control for users

Task Management APIs

• Create, update, delete, and list tasks
• Each user can manage their own tasks independently

Persistence & ORM

• Data persisted via Spring Data JPA (Hibernate)
• Currently runs on H2 in-memory database (can easily switch to MySQL)

Container-Ready

• Includes Dockerfile and docker-compose.yml for one-command deployment
• Stateless architecture for cloud scalability

Developer Tools

• Live H2 console for debugging
• In-memory database auto-schema creation
• Easily extensible for PostgreSQL or MySQL

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Tech Stack

Layer	Technology
Backend	Spring Boot 2.7.x
Security	Spring Security, JWT
Database	H2 (In-Memory) / MySQL (switchable)
ORM	Hibernate / JPA
Build Tool	Maven
Containerization	Docker
Language	Java 11
Testing	JUnit (Spring Boot Starter Test)

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Architecture Overview

                        ┌──────────────────────────────┐
                        │        REST Controller        │
                        │ (Handles API requests & maps) │
                        └──────────────┬────────────────┘
                                       │
                                       ▼
                        ┌──────────────────────────────┐
                        │          Service Layer        │
                        │  (Business logic, validation) │
                        └──────────────┬────────────────┘
                                       │
                                       ▼
                        ┌──────────────────────────────┐
                        │        Repository Layer       │
                        │ (CRUD operations via JPA/HQL) │
                        └──────────────┬────────────────┘
                                       │
                                       ▼
                        ┌──────────────────────────────┐
                        │     H2 / MySQL Database       │
                        │ (Data persistence & relations)│
                        └──────────────────────────────┘
                                       ▲
                                       │
                        ┌──────────────────────────────┐
                        │  JWT Auth + Spring Security   │
                        │ (Access control, token verify)│
                        └──────────────────────────────┘


**## API Endpoints Overview** 

| Method | Endpoint             | Description                          |
| :----- | :------------------- | :----------------------------------- |
| POST   | `/api/auth/register` | Register a new user                  |
| POST   | `/api/auth/login`    | Authenticate user and return JWT     |
| GET    | `/api/tasks`         | Get all tasks for the logged-in user |
| POST   | `/api/tasks`         | Create a new task                    |
| PUT    | `/api/tasks/{id}`    | Update an existing task              |
| DELETE | `/api/tasks/{id}`    | Delete a task                        |


**POST** `/api/auth/login`

```json
{
  "username": "hariish",
  "password": "password123"
}


{
  "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9..."
}