How to add Web API to existing Windows Service

is there any way to add Web API to existing Windows Service application ? Like adding new port on which to listen for http requests.

Currently service start point is looking like this:

ServicesToRun = new System.ServiceProcess.ServiceBase[] { new WinService1() };   
System.ServiceProcess.ServiceBase.Run(ServicesToRun);  

Using .net 6.

I know there is also worker service provided by .net core if the former is not possible can i migrate existing project to worker service and then add Web API ? Thanks for any advice!

I figured out how to do it. So this is the steps:

1. In project .csproj file Changed target project SDK

<Project Sdk="Microsoft.NET.Sdk"> to <Project Sdk="Microsoft.NET.Sdk.Web>

2. Changed base class of service

WinService1: ServiceBase to WinService1: BackgroundService

3. Changed application entry point like this

using this example: https://github.com/dotnet/AspNetCore.Docs/tree/main/aspnetcore/host-and-deploy/windows-service/samples/6.x/WebAppServiceSample

ServicesToRun = new System.ServiceProcess.ServiceBase[] { new WinService1() };   
System.ServiceProcess.ServiceBase.Run(ServicesToRun);

to

var options = new WebApplicationOptions
{
    Args = args,
    ContentRootPath = WindowsServiceHelpers.IsWindowsService() ? AppContext.BaseDirectory : default
};

var builder = WebApplication.CreateBuilder(options);
builder.Services.AddRazorPages();
builder.Services.AddHostedService<WinService1>();

builder.Host.UseWindowsService();

var app = builder.Build();


app.UseStaticFiles();
app.UseRouting();
app.MapRazorPages();
await app.Run();