QuizApp Demo

Overview

QuizApp is a simple quiz application built using Java and Spring Boot. This application allows users to attempt quizzes, manage questions. It was developed as a demo project for learning purposes and does not include update or delete functionalities for quizzes or questions.

The application is built using a microservices architecture with the following four microservices:

• question-service: Manages quiz questions.
• quiz-service: Handles quiz-related operations.
• service-registry: Eureka client for connecting microservices.
• API gateway: A common API gateway to control API calls to specific microservices.

In the service-registry microservice, Eureka client is used for all the microservices to communicate. A Load Balancer is implemented to handle multiple instances of microservices within Eureka.

Features

• Create and attempt quizzes
• Add and manage questions
• View quiz results
• RESTful API endpoints for quiz operations
• Uses Spring Boot for backend development

Tech Stack

• Java
• Spring Boot
• Spring Cloud (for microservices management)
• Spring Data JPA
• MySQL Database
• Maven
• FeignClient (used in quiz-service to access question-service API endpoints)

Folder Structure

quizApp-demo/
│-- src/
│   ├── main/
│   │   ├── java/com/example/quizapp/
│   │   │   ├── controller/   # Contains REST controllers for handling HTTP requests
│   │   │   ├── service/      # Business logic for quiz management
│   │   │   ├── repository/   # Interfaces for database interactions using JPA
│   │   │   ├── entities/     # Entity classes representing database tables
│   │   ├── resources/
│   │   │   ├── application.properties  # Configuration file for database and server settings
│-- src/test/java/com/example/quizapp/  # Unit and integration tests
│-- pom.xml  # Maven dependencies and build configuration
│-- README.md  # Project documentation

API Access

API access is configured in the application.properties file.

API Gateways

1. quiz-service:

   • POST /quiz → Create a quiz
   • GET /quiz → Get all quizzes
   • GET /quiz/{id} → Get quiz by ID

2. question-service:

   • POST /question → Create a question
   • GET /question → Get all questions
   • GET /question/{id} → Get question by ID

3. API Gateway:

   • Routes from a common port 8083 to fetch /quiz/** and /question/** endpoints.

Contributing

Feel free to fork this repository and submit pull requests with improvements!

License

This project is open-source and available under the MIT License.