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Building a Robust Quiz Application: A Full-Stack Approach

Nnaemeka Uzuegbu's photo
Nnaemeka Uzuegbu
·

2 min read

Hello Hashnode community!

I'm excited to share my latest project: a robust Quiz Application built using Node.js, Express, PostgreSQL, and various other technologies. This project has been an excellent opportunity for me to apply my skills and learn new techniques. In this post, I'll walk you through the key features and architecture of the application.

🛠️ Project Overview

The Quiz Application is designed to manage quiz questions and multiple-choice options efficiently. The application includes functionality for:

  • Creating Quiz Questions: Users can add new quiz questions along with multiple-choice options.

  • Fetching Quiz Questions: Retrieve all existing questions and their associated options.

  • Deleting Quiz Questions: Remove quiz questions and their options from the database.

🚀 Key Features

User Authentication

  • Register: Users can create a new account.

  • Login: Users can log in to receive a JWT token for secure access.

  • Profile: Users can view their profile information (JWT required).

Quiz Management

  • Add Questions: Post new quiz questions and associated options.

  • Retrieve Questions: Fetch all questions along with their options.

  • Delete Questions: Remove a question and its options from the system.

🌐 API Endpoints

Here are the main API endpoints for interacting with the application:

Authentication

  • POST /auth/register: Register a new user.

  • POST /auth/login: Log in and get a JWT token.

Quiz Category

  • POST /category: Create a new quiz category (JWT required).

  • GET /category: Retrieve all quiz categories(JWT required).

  • DELETE /category/:id: Delete a quiz category by ID(JWT required).

Quiz Questions

  • POST /questions: Create a new quiz question with options(JWT required).

  • GET /questions: Retrieve all quiz questions with options(JWT required).

  • DELETE /questions/:id: Delete a quiz question by ID(JWT required).

User Answers

  • POST /answers/submit: Submit User answer to quiz question(JWT required).

  • GET /answers/:id: Retrieve User answer by ID(JWT required).

🧩 Architecture & Technology Stack

  • Backend: Node.js with Express

  • Database: PostgreSQL

  • Authentication: JWT (JSON Web Tokens)

  • Validation: express-validator

  • Error Handling: Custom middleware

🎯 Future Improvements

Here are a few ideas for enhancing the application:

  • User Roles: Implement different user roles (e.g., admin, regular user).

  • Advanced Analytics: Provide detailed analytics and reporting for quizzes.

Feel free to check out the GitHub repo for the full code

Node.jsbackendJavaScript