🗳️ Voting Application using Node.js

A backend-based Voting Application built using Node.js, Express.js, and MongoDB.
This project implements secure user authentication, role-based access (Admin/User), and a one-time voting system.

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🚀 Features

👤 User

• Sign up and login using Aadhar Card Number
• View list of candidates
• Vote for a candidate (only once)
• View user profile
• Change password

🛠️ Admin

• Add new candidates
• Update candidate details
• Delete candidates
• View vote count of all candidates
• ❌ Admin is not allowed to vote

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🧰 Tech Stack

• Node.js
• Express.js
• MongoDB
• Mongoose
• JWT (JSON Web Token)

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📁 Project Structure

Voting_Application_using_Nodejs/
│
├── models/          # Mongoose schemas
├── routers/         # API routes
├── db.js            # MongoDB connection
├── jwt.js           # JWT utilities & middleware
├── server.js        # Application entry point
├── .gitignore
├── package.json
└── README.md

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⚙️ Installation & Setup

1️⃣ Clone the repository

git clone https://github.com/muskan-am/Voting_Application_using_Nodejs.git

2️⃣ Go to project directory

cd Voting_Application_using_Nodejs

3️⃣ Install dependencies

npm install

4️⃣ Create .env file

PORT=3000
MONGODB_URI=your_mongodb_connection_string
JWT_SECRET=your_jwt_secret

5️⃣ Start the server

node server.js

Server will run on:

http://localhost:3000

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🔐 API Endpoints

🔑 Authentication

Method	Endpoint	Description
POST	/user/signup	Register a new user
POST	/user/login	Login user & get JWT

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👥 Candidates

Method	Endpoint	Access
GET	/candidates	User
POST	/candidates	Admin
PUT	/candidates/:id	Admin
DELETE	/candidates/:id	Admin

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🗳️ Voting

Method	Endpoint	Access
POST	/candidates/vote/:id	User
GET	/candidates/vote/count	Admin

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👤 User Profile

Method	Endpoint
GET	/user/profile
PUT	/user/profile/password

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🔒 Security Rules

• JWT-based authentication
• Role-based authorization (Admin/User)
• One user can vote only once
• Admin cannot vote
• Sensitive data handled using environment variables

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📌 Future Enhancements

• Swagger API documentation
• Pagination for candidates
• Frontend integration
• Election result declaration

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👩‍💻 Author

Muskan Kesharwani
Backend Developer | Node.js | MongoDB

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⭐ If you like this project, don’t forget to star the repository!