Task Manager

Overview

A task management web application built top to bottom on the .NET stack: ASP.NET Core MVC, Entity Framework Core, PostgreSQL, and a Bootstrap-5 UI, deployed on Railway with Docker and automated CI/CD. The point was to learn the .NET ecosystem properly and ship something production-shaped, not a tutorial sandbox.

What it does

• Authentication. Registration and login via ASP.NET Core Identity, with custom UI pages that fit the rest of the design.
• Task CRUD. Create, edit, delete, mark done.
• Prioritization & due dates. Priority levels, deadline tracking, and status states.
• Real-time sorting and filtering. Slice the list by priority, status, or due date without a roundtrip.
• Feedback. Success notifications on every state change.
• Responsive UI. Bootstrap 5, works on phone and desktop.

Stack

• App. ASP.NET Core 9.0 MVC.
• Data. Entity Framework Core, with SQLite in development and PostgreSQL in production. Automatic migrations and schema management on startup.
• UI. Bootstrap 5, server-rendered Razor views.
• Infra. Railway for hosting, Docker for packaging, GitHub for CI/CD. A custom multi-stage Dockerfile keeps the production image small and reproducible.

What I built

• Auth on top of ASP.NET Identity. Wired up registration and login and replaced the scaffolded views with custom pages that match the app’s look and feel.
• A data layer that works in two databases. EF Core abstracts the provider; the same migrations work against SQLite locally and PostgreSQL in production. Resolved the inevitable cross-database quirks, most painfully DateTime timezone handling and schema differences between the two providers.
• Docker, multi-stage. Build stage compiles and publishes; runtime stage carries only what’s needed. The production image is small and cold-starts fast.
• CI/CD on Railway. Every push to main triggers a rebuild and redeploy, with a persistent PostgreSQL database and environment-based configuration so dev and prod stay cleanly separated.

Why this project

A deliberate stretch outside my Python / TypeScript comfort zone: I wanted to learn ASP.NET Core, EF Core, and the .NET deployment story by shipping a real, useful, end-to-end app rather than reading tutorials.

Try it: taskmanager1.up.railway.app