When working in web applications in ASP.NET Core, you might often want to build services that are lightweight — i.e., services that don’t have a template or controller class — for lower resource consumption and improved performance. You can create these lightweight services or APIs in the Startup or the Program class.
This article talks about how you can build such lightweight services in ASP.NET Core 6. To work with the code examples provided in this article, you should have Visual Studio 2022 installed in your system. If you don’t already have a copy, you can download Visual Studio 2022 here.
[ Also on InfoWorld: Introducing Microsoft .NET 6 ]
Create an ASP.NET Core Web API project in Visual Studio 2022
First off, let’s create an ASP.NET Core project in Visual Studio 2022. Following these steps will create a new ASP.NET Core Web API 6 project in Visual Studio 2022:Launch the Visual Studio 2022 IDE. Click on “Create new project.” In the “Create new project” window, select “ASP.NET Core Web API” from the list of templates displayed. Click Next. In the “Configure your new project” window, specify the name and location for the new project. Optionally check the “Place solution and project in the same directory” check box, depending on your preferences. Click Next. In the “Additional Information” window shown next, select .NET 6.0 (Preview) as the target framework from the drop-down list at the top. Leave the “Authentication Type” as “None” (default). Ensure that the check boxes “Enable Docker,” “Configure for HTTPS,” and “Enable Open API Support” are unchecked as we won’t be using any of those features here. Click Create.
We’ll use this new ASP.NET Core 6 Web API project to illustrate working with lightweight services in the subsequent sections of this article.
Get started on a lightweight service in ASP.NET Core
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