Task Management API (Backend Developer Assignment)

A simple full-stack task management system built with Node.js, Express, MongoDB, and JWT authentication.
This project demonstrates authentication, protected routes, role-based access control, and CRUD operations for tasks.

A basic frontend is included to interact with the backend APIs.

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Tech Stack

Backend

• Node.js
• Express.js
• MongoDB (Mongoose)
• JWT Authentication
• bcrypt (password hashing)

Frontend

• HTML
• CSS
• JavaScript (Fetch API)

Tools

• Postman (API testing)
• Git & GitHub

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Features

• User Registration
• User Login
• Password hashing using bcrypt
• JWT authentication
• Protected routes
• Role-based access control (Admin vs User)
• Create tasks
• View tasks
• Admin can view all tasks
• Basic frontend dashboard
• API documentation using Postman

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Project Structure

backend-assignment │ ├── config │ └── db.js # MongoDB connection │ ├── middleware │ ├── authMiddleware.js # JWT verification │ └── roleMiddleware.js # Role based access (admin/user) │ ├── models │ ├── User.js # User schema │ └── Task.js # Task schema │ ├── routes │ ├── authRoutes.js # Register & Login APIs │ └── taskRoutes.js # Task APIs │ ├── frontend │ ├── register.html # User registration page │ ├── login.html # Login page │ ├── dashboard.html # Task dashboard │ └── style.css # Styling │ ├── server.js # Main server file ├── package.json # Dependencies ├── .env # Environment variables ├── postman_collection.json # API documentation ├── scalability.md # Scalability explanation └── README.md

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API Endpoints

Authentication

Register

POST /api/auth/register

Body

{
"name": "Anshya",
"email": "anshya@gmail.com",
"password": "123456"
}
Login
POST /api/auth/login

Body

{
"email": "anshya@gmail.com",
"password": "123456"
}

Response

{
"token": "JWT_TOKEN"
}
Task APIs
Create Task
POST /api/tasks

Headers

Authorization: Bearer TOKEN

Body

{
"title": "Finish Backend Assignment",
"description": "Create REST API with JWT"
}
Get User Tasks
GET /api/tasks

Headers

Authorization: Bearer TOKEN
Admin Get All Tasks
GET /api/tasks/admin/all

Headers

Authorization: Bearer TOKEN

Admin role required.

Setup Instructions
1 Install Dependencies
npm install
2 Create .env file
PORT=5000
MONGO_URI=your_mongodb_connection_string
JWT_SECRET=your_secret_key
3 Run Server
npm run dev

Server will start on

http://localhost:5000
Frontend Usage

Open the frontend files in a browser.

Start with

frontend/register.html

Flow:

Register → Login → Dashboard → Create Tasks
API Documentation

Postman collection is included.

Import file:

postman_collection.json

into Postman to test APIs.