Task Manager API

Task and Project Management System developed in Java with Spring Boot and SQLite.

Technologies

• Java 17
• Spring Boot 3.2.0
• Spring Data JPA
• SQLite
• Lombok
• Maven

Project Structure

src/main/java/com/taskmanager/
├── builder/           # Builder Pattern
├── config/            # Configurations and Singleton
├── controller/        # REST Controllers
├── dto/               # Data Transfer Objects
├── exception/         # Exception Handling
├── factory/           # Factory Pattern
├── model/             # JPA Entities
│   └── enums/        # Enumerations
├── observer/          # Observer Pattern
├── repository/        # JPA Repositories
├── service/           # Business Logic
└── strategy/          # Strategy Pattern

How to Run

Prerequisites

• JDK 17 or higher
• Maven 3.6+
• IntelliJ IDEA (recommended)

Steps

1. Clone or create the project in IntelliJ:

   • File → New → Project
   • Name: task-manager-api
   • Group: com.taskmanager

2. Copy the pom.xml file to the project root directory

3. Create the package structure as indicated above

4. Copy all Java files to their respective packages

5. Copy the application.properties to src/main/resources/

6. Run Maven to download dependencies:

   mvn clean install

7. Run the application:

   mvn spring-boot:run

   Or run the TaskManagerApiApplication class directly in IntelliJ

8. The API will be available at: http://localhost:8080

API Endpoints

Projects

• POST /api/projects - Create project
• GET /api/projects - List all
• GET /api/projects/{id} - Get by ID
• GET /api/projects/search?name= - Search by name
• PUT /api/projects/{id} - Update
• DELETE /api/projects/{id} - Delete

Tasks

• POST /api/tasks - Create task
• GET /api/tasks - List all
• GET /api/tasks/{id} - Get by ID
• GET /api/tasks/project/{projectId} - Tasks by project
• GET /api/tasks/status/{status} - Filter by status
• GET /api/tasks/sorted/priority - Sort by priority (Strategy)
• PUT /api/tasks/{id} - Update
• DELETE /api/tasks/{id} - Delete

Comments

• POST /api/tasks/{taskId}/comments - Add comment
• GET /api/tasks/{taskId}/comments - List comments
• DELETE /api/tasks/{taskId}/comments/{commentId} - Delete comment