TaskTracker – Backend API

This is the backend API for TaskTracker, a full-stack task management system built with ASP.NET Core and React. It provides secure JWT authentication with refresh tokens, role-based access control, seeded demo data, and data export (PDF and CSV). Designed for lightweight deployment using an in-memory database, ideal for demos or CI environments.

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Live Deployment

Backend API: https://tasktracker-api-5qyf.onrender.com Frontend: https://a51398-tasktracker-client.netlify.app

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Admin Dashboard

Users Tab

View Users

Edit Role Before editing the role

After editing the role

Delete Users

Tasks Tab

View Tasks

Update Task

Delete User Tasks

Export

Both tabs support CSV and PDF exports

User Dashboard

Includes full task management capabilities:

• Create, update, delete tasks
• Filter and sort tasks
• Export tasks to CSV or PDF

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Features

• Role-based authentication (Admin/User)
• Dark/Light theme toggle with persistence
• Task management (Create, Update, Delete)
• PDF and CSV export
• Token refresh and session handling
• Responsive UI for all device sizes

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Tech Stack

• ASP.NET Core 9 Web API
• Entity Framework Core (InMemory)
• JWT + Refresh Token Authentication
• QuestPDF (PDF export)
• CSV export via StringBuilder
• xUnit for unit testing
• Hosted on Render (Docker deployment)

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Folder Structure

• Controllers/ – API endpoints
• Services/ – Core business logic (Auth, Tasks, Admin, Export)
• Repositories/ – Data access layer (optional, for extensibility)
• DTO/ – Data transfer objects for API communication
• Models/ – Entity definitions (User, Task, Tokens)
• Data/ – EF Core DbContext and seeding configuration
• Tests/ – xUnit test projects for services and controllers

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Authentication Overview

• JWT access token issued upon successful login
• Access token stored client-side in localStorage
• Refresh token stored securely in an HttpOnly cookie
• Automatic token refresh handled on the frontend via Axios interceptors

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Database & Seeding

• Uses EF Core InMemory database for development and demos

• Automatically seeds demo data on startup:

  • One admin user
  • Multiple demo users
  • Sample tasks

To persist data, update Program.cs to use SQL Server:

builder.Services.AddDbContext<TaskDbContext>(options =>
    options.UseSqlServer(builder.Configuration.GetConnectionString("DefaultConnection")));

Then, add your connection string in appsettings.json.

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Configuration Example (appsettings.json)

"Jwt": {
  "Key": "s3cr3tK3yJwtSecur3t0kenPassw0rd!!",
  "Issuer": "TaskTrackerApi",
  "Audience": "TaskTrackerClient"
},
"AdminCredentials": {
  "Email": "[email protected]",
  "UserName": "adminuser",
  "Password": "YourPassword123!"
}

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Testing

• Framework: xUnit

• Coverage:

  • Services (AuthService, TaskService, AdminService)
  • Controllers (AccountController, TasksController)

• Uses an in-memory database for isolated testing

Run tests:

dotnet test

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Deployment

• Hosting: Render (Docker)
• Builds from: GitHub repository
• Environment variables: Configured via Render Dashboard
• CI/CD: Automatic redeploys on push to main branch

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Future Plans

• Add persistent SQL Server or PostgreSQL database
• Implement dashboard statistics (task and user summaries)
• Extend test coverage for export and role management
• Improve admin tools and analytics

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