API Versioning in ASP.NET Core Web API (.NET 9) 🚀

Elegant API Versioning in ASP.NET Core Web API (.NET 9) 🔥🚀
Learn how to implement API Versioning in ASP.NET Core Web API step-by-step!
In this tutorial, we’ll explore why API versioning is important and how to support multiple versions of your API without breaking existing clients.

You’ll learn how to:
✅ Add API versioning using asp.versioning.mvc and asp.versioning.api.explorer
✅ Create versioned controllers (v1 and v2)
✅ Configure API versioning in Program.cs
✅ Integrate Swagger to automatically document API versions
✅ Use IApiVersionDescriptionProvider to display versioned endpoints in Swagger UI

By the end of this video, you’ll know how to manage multiple API versions effectively in your ASP.NET Core Web API, ensuring backward compatibility for existing users while delivering new features for future releases.

📚 Topics Covered:

Why API versioning matters

Setting up an ASP.NET Core Web API project

Installing API versioning NuGet packages

Creating v1 and v2 controllers

Configuring API versioning options in Program.cs

Setting up Swagger for versioned documentation

🧩 Tools & Packages Used:

Visual Studio 2022

ASP.NET Core 9 (or latest version)

asp.versioning.mvc

asp.versioning.api.explorer

Swashbuckle.AspNetCore (Swagger)

#aspnetcore #webapi #dotnetcore #csharp #programming