.NET & C# Backend Engineering
Build production-grade APIs and services with modern .NET and C# — minimal APIs, EF Core, dependency injection, auth, and testing.
About this course
A complete, production-focused curriculum for building backend systems with .NET 8 and C#. Covers the runtime and language fundamentals, ASP.NET Core minimal APIs and controllers, dependency injection, Entity Framework Core, authentication and authorization with JWT and Identity, clean architecture, background services, and full testing with xUnit. Every pattern is idiomatic, current, and ready to ship.
Curriculum (10 modules)
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.NET & C# Fundamentals
How .NET works — the runtime, SDK vs runtime, the CLI, project structure, and modern C# language features you'll use daily.
ASP.NET Core & Minimal APIs
Build HTTP APIs with the minimal API model — routing, the request pipeline, results, and when to reach for controllers instead.
Dependency Injection & Configuration
The built-in DI container, service lifetimes, the options pattern, and layering configuration from files, environment, and secrets.
Entity Framework Core
Model your database with EF Core — DbContext, relationships, migrations, LINQ queries, and avoiding the N+1 trap.
Validation & Error Handling
Validate input with data annotations and FluentValidation, and return consistent RFC 7807 problem responses across the API.
Authentication & Authorization
Secure your API with JWT bearer tokens and ASP.NET Core Identity, then gate endpoints with policies and role-based rules.
Clean Architecture & Project Layout
Structure a real .NET solution into layers, apply the repository and service patterns, and keep dependencies pointing inward.
Async, Concurrency & Background Services
Master async/await, cancellation tokens, and running scheduled or queued work with hosted background services.
Testing .NET Applications
Write unit tests with xUnit and Moq, and full integration tests against your API using WebApplicationFactory.
Deployment, Docker & Observability
Containerize with a multi-stage Dockerfile, add structured logging and health checks, and ship a production-ready service.
Free
Free for everyone · Lifetime access
100% free — no payment details needed