📚 Online Exam Portal

Welcome to the Online Exam Portal, a modern and feature-rich platform designed for conducting online examinations efficiently. This project demonstrates a full-stack web application, integrating a powerful backend with a user-friendly frontend.

The platform enables students to take exams, teachers to upload and evaluate papers, and administrators to manage roles securely.

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🚀 Key Features

🔐 Secure Authentication and Role-Based Access

• User Registration & Login: Secure authentication system with email-based sign-up and login.
• Session-Based Authentication: Uses PostgreSQL-backed sessions for persistent logins.
• Password Encryption with BCrypt: Ensures that user credentials are securely hashed.

👤 User & Exam Management

• Students:

  • Attempt exams and submit answers for evaluation.
  • View their results after evaluation.

• Teachers:

  • Upload new question papers.
  • Evaluate student answers and assign marks.
  • View all student results.

📑 Paper & Question Management

• Upload Question Papers: Teachers can upload text files containing questions and answers.
• Evaluate Student Responses: Automatic and manual evaluation of answers.
• Result Generation: Generates student scores and stores them in the database.

🛠️ Admin Privileges

• Role-Based Dashboard: Teachers and students see different views tailored to their access levels.
• Admin Controls: Admins can manage users and ensure a smooth workflow.

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🛠 Tech Stack

🖥️ Frontend

• HTML: For page structure.
• CSS: For styling and layout.
• EJS (Embedded JavaScript): For dynamic rendering of server-side templates.

⚙️ Backend

• Node.js: Fast and scalable backend framework.
• Express.js: Handles routing and server logic.

🗄️ Database

• PostgreSQL: Stores users, exams, and results.

🔐 Security

• BCrypt: Encrypts user passwords for secure authentication.
• Session-Based Authentication: Uses connect-pg-simple for secure session storage.

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🌐 Live Server

🌐 Live Server

🚀 The server is live and running at:

🔗 [https://answer-sheet.onrender.com/]

Click the link above to access the Online Exam Portal and start using its features! 🎯

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📂 Project Structure

📁 Main Directories

1. public/ - Contains static files like CSS, JavaScript, and images.
2. views/ - Stores EJS templates for rendering dynamic web pages.
3. uploads/ - Stores uploaded question papers and other files.

📄 Main Files

• db.js - Handles database connection with PostgreSQL.
• server.js - Main application file managing routes and logic.
• package.json - Contains project dependencies and scripts.
• .env - Stores environment variables (session secrets, database credentials, etc.).
• README.md - Documentation for the project.

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⚙️ Setup & Installation

🔽 Clone the Repository

Run the following command to clone the repository:

git clone [https://github.com/your-username/Online-Exam-Portal.git](https://github.com/BikoMaster6589/Answer_Sheet.git)

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🔧 Install Dependencies

Install all required dependencies using:

npm install

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🛠 Set Up Environment Variables

Create a .env file in the root directory and add:

SESSION_SECRET=your_secret_key
DATABASE_URL=your_postgresql_url

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###** 🏁 Run the Server ** Start the server with:

npm start

📌 The server will run on: http://localhost:3000 🚀

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🔑 User Roles & Access

👨‍🏫 Teacher

• Upload & manage question papers
• View student evaluations

🎓 Student

• Attempt question papers
• Submit answers for evaluation

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📜 API Routes

Method	Route	Description
GET	/	Redirect to Sign-up
GET	/signin	User login page
GET	/home	Dashboard (Role-based)
GET	/add-paper	Add question paper (Teacher only)
GET	/evaluate	Evaluate papers (Student only)
POST	/signup	Register a new user
POST	/signin	Login user

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✨ Thank you for exploring the Online Exam Portal! We hope this project helps in understanding and implementing online examination systems effectively.

💡 Contributions & Feedback are always welcome! Feel free to submit issues, suggest improvements, or contribute to the repository.

🚀 Happy Coding & Learning! 🎯