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Otabek

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Online Quiz Portal

ReactAntd-DesignReduxStripe.js

An Online Quiz Portal App is a web or mobile application that provides a platform for users to participate in quizzes over the internet. These applications are designed to offer a diverse range of quizzes on various topics, and users can engage with them for entertainment, education, or competition purposes.

Key Features

👤 User Management

  • Users can sign up, log in, and manage their profile.
  • Features include editing profiles and changing passwords.

📝 Quiz Creation

  • Admins can create quizzes with various question types (e.g., multiple choice, short answers).

❓ Quiz Participation

  • Users can join quizzes, answer questions, and get instant results after completion.

🕒 Real-time Scoring

  • Scores are calculated immediately upon answer submission.
  • Users can analyze their scores after the quiz ends.

📊 Quiz Results

  • Participants can review their scores and revisit incorrect answers.
  • Admins and users can view overall quiz statistics.

🔍 Quiz List & Search

  • Admins can view statistics, manage participants, and modify or delete quizzes.
  • Analyze quiz popularity and user engagement.

⏱️ Quiz Timer

  • Set start and end times for quizzes to enforce time limits.

💾 Data Storage

  • Stores user scores and quiz results for future reference and analysis.

Front-End Technical Implementation 💻

⚛️ React

  • Utilized React (^18.2.0) for building the user interface and managing the application's state.
  • Combined with ReactDOM (^18.2.0) to render React components into the DOM.

🔄 Redux & Redux Toolkit

  • Redux (^4.2.0) for global state management.
  • Implemented Redux Toolkit (^1.8.5) for efficient Redux development, simplifying store configuration, reducers, and actions.

🌐 React Router

  • Integrated React Router DOM (^6.4.1) to handle routing and navigation across different views and pages within the app.

💻 Ant Design

  • Used Ant Design (^4.23.4) for rich UI components like forms, tables, and buttons, offering a consistent design system.

🌍 Axios

  • Integrated Axios (^0.27.2) for making HTTP requests to the backend, handling API calls and data fetching seamlessly.

📅 Moment.js

  • Used Moment.js (^2.29.4) to parse, validate, manipulate, and display dates and times in a readable format.

Back-End Technical Implementation 🌐

🔐 bcryptjs

  • Used bcryptjs (^2.4.3) for password hashing to ensure user credentials are securely stored and protected in the database.

🌿 dotenv

  • Configured dotenv (^16.0.3) to load environment variables from a .env file, helping manage sensitive information like API keys, database credentials, and app settings securely.
  • Set up a server using Express (^4.18.1), a fast and minimalist web framework, to handle HTTP requests, routing, and middleware.

🔑 jsonwebtoken

  • Integrated jsonwebtoken (^8.5.1) for creating and verifying JWT (JSON Web Tokens), enabling secure user authentication and authorization.

💾 mongoose

  • Used mongoose (^6.6.4) for MongoDB object modeling, providing an easy-to-use API to interact with a MongoDB database, defining schemas, and handling CRUD operations.

🔄 nodemon

  • Configured nodemon (^2.0.20) for automatic server reloading during development, allowing for real-time updates when the backend code is modified.

⚙️ Environment Configuration

  • ⚙️ Integrated Stripe using the stripe and @stripe/stripe-js
  • 🔄 Development Workflow with Nodemon
  • 🔑 Used unique Identifiers with UUID

What I learned 📚

🕒 Real-Time Features Implementation

  • Implemented real-time communication for users to take quizzes and see results instantly.
  • Gained experience in asynchronous handling and real-time data flow, including live updates and scoreboards.

🔐 User Authentication and Session Management

  • Developed a JWT-based authentication system for login and registration.
  • Learned how to manage sessions to offer personalized experiences to users.

🌐 RESTful API Design and Data Handling

  • Designed and implemented RESTful APIs using HTTP methods (GET, POST, PUT, DELETE) for various features like user registration and score recording.
  • Strengthened API design and data handling skills.

📂 Real-Time Database Management

  • Used MongoDB for storing quiz questions and results, learning how to manage data concurrency.
  • Gained skills in database design, schema development, and query optimization.

🔗 Frontend-Backend Integration

  • Integrated React for the frontend with Node.js/Express.js for the backend.
  • Improved understanding of client-server interaction by reflecting quiz results in real-time.

📊 State Management

  • Used Redux to manage quiz progress (e.g., current question, score).
  • Efficiently handled shared state across components, ensuring consistent UI.
Copyright ⓒ —2025