Upgrading an ASP.NET Core 3.1 Web API and Adding Swagger UI Integration

Sometimes, when we have an older version of an ASP.NET Core Web API, we need to upgrade it to the latest version. In such cases, it's essential to update our existing projects to ensure compatibility and access to new features. In this project, I have an ASP.NET Core Web API built using .NET Core 3.1. First, I will upgrade it to .NET 8.0. Then, I will add Swagger UI to generate easy-to-read, interactive API documentation. Contents Timestamps (0:00:34) 1. Upgrade Project (0:08:00) 2. Adding Swagger UI Integration (0:08:27) 2-1. Add NuGet Packages (0:11:19) 2-2. Add Swagger UI Codes (0:14:03) 2-3. Add "swagger" Keyword (0:15:56) 3. Summary