Assignment 9-A

Spring Boot Web Application

Build a complete Spring Boot web application with REST APIs. Apply Spring MVC, dependency injection, and JPA to create a production-ready application.

8-10 hours
Advanced
200 Points
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What You'll Practice
  • Create Spring Boot application
  • Build REST APIs
  • Implement MVC pattern
  • Integrate database with JPA
  • Apply dependency injection
Contents
01

Assignment Overview

Build a Book Management System using Spring Boot. This application will allow users to manage books, authors, and categories through a RESTful API with a database backend.

Skills Applied: Spring Basics (9.1), Spring MVC (9.2), and Spring Boot (9.3) from Module 9.
Spring Boot

Auto-configuration, starters, embedded server

REST APIs

Controllers, request mapping, ResponseEntity

JPA/Hibernate

Entities, repositories, CRUD operations

02

Requirements

Part 1: Project Setup (30 points)

  • Initialize Spring Boot project with Spring Initializr
  • Include dependencies: Web, JPA, H2/MySQL, Validation, Lombok
  • Configure application.properties for database
  • Set up proper package structure (controller, service, repository, model)

Part 2: Entity Classes and Repositories (50 points)

  • Create Book entity with JPA annotations (@Entity, @Id, @GeneratedValue)
  • Create Author entity with relationship to books
  • Create Category entity
  • Implement JpaRepository interfaces for CRUD operations
  • Add validation annotations (@NotNull, @Size, etc.)

Part 3: Service Layer (40 points)

  • Create service interfaces and implementations
  • Implement business logic in service layer
  • Use @Service and @Transactional annotations
  • Inject repositories using constructor injection

Part 4: REST Controllers (50 points)

  • Create BookController with all CRUD endpoints
  • Implement proper HTTP methods: GET, POST, PUT, DELETE
  • Use @PathVariable and @RequestBody appropriately
  • Return proper HTTP status codes
  • Implement pagination and sorting

Part 5: Error Handling and Validation (30 points)

  • Create global exception handler with @ControllerAdvice
  • Handle validation errors properly
  • Return meaningful error responses
  • Implement custom exceptions
03

Submission Guidelines

Folder Structure: Submit the complete Spring Boot project
Required Files:
  1. Complete Spring Boot project with Maven/Gradle build files
  2. src/main/java/ - All Java source files
  3. src/main/resources/ - Application properties
  4. src/test/java/ - Unit tests (bonus)
  5. API_DOCUMENTATION.md - API endpoints documentation
  6. README.md - Setup and run instructions
  7. Postman collection for testing (optional)
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04

Grading Rubric

Criteria Points Description
Project Setup 30 Proper Spring Boot configuration
Entities & Repositories 50 JPA entities and repository interfaces
Service Layer 40 Business logic implementation
REST Controllers 50 All CRUD endpoints working
Error Handling 30 Global exception handling
Total 200
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