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Upgrading your C# codebase to Umbraco 17 means saying a final goodbye to legacy startup patterns and deprecated service ...

You click submit and send one single API request. Most developers think that request goes straight to their ASP.NET Core ...

Add the #:sdk directive to a single .cs file and dotnet run serves it as a web API. Full tutorial ...

Minimal API endpoints won't build in a file-based app until you set PublishAot to false with a #:property directive. Why native AOT ...

dotnet new, run and build, a NuGet package, xUnit tests going from red to green, a minimal web API called with curl, then a single ...

NET Playlists: AI Explained Simply · ASP.NET Core Web API Tutorials Subscribe + tap the bell (All) — a new AI for .NET ...

Day 136 of the Backend Software Journey. Today, I review how JobTrackr returns predictable and secure API error responses.

NET API Works — But Is It Production-Ready?* Your ASP.NET Core API returns a `200 OK`, saves data successfully, and passes ...

Why do ASP.NET Core applications pass args to WebApplication.CreateBuilder? Command-line arguments become part of the ...

Resource-based authorization in ASP.NET Core stops a signed-in user from editing someone else's order just by changing the id ...

NET Core minimal API endpoint in C#, asynchronously, and render Razor components such as invoices to PDF. Step-by-step ...

NET Framework vs Modern .NET Why learn .NET in 2026 C# programming tutorial ASP.NET Core Web API ASP.NET Core tutorial ...

JWT Authentication in ASP.NET Core Learn how to implement JWT (JSON Web Token) Authentication in ASP.NET Core in this ...

Mistakes: 1. Not using using for scope, 2. Storing scoped service in field, 3. Not passing CancellationToken, 4. Long-running ...

Create your first API with ASP.NET Core in under a minute: project setup, a GET endpoint, JSON, and POST. Follow ArdentTechie ...

This class isn't registered in DI, but its constructor still receives a registered dependency. Discover how ActivatorUtilities.

Welcome to CODER ‍ Practical tutorials on C#, .NET, ASP.NET Core, Web APIs, backend development, databases, and AI.

... umbraco asp.net core, dotnet dependency injection, c# dependency injection, dotnet 8, dotnet 9, asp.net core tutorial, umbraco ...

NET 8 support ends November 10. Skip 9. Land on .NET 10 LTS. Full upgrade on the channel (Products API + React + Scalar).

I removed a singleton registration. The endpoint still worked—but its object IDs started changing. This C# demo explains ...