https://learn.microsoft.com/en-us/uwp/api/windows.web.http.httpclient.sendrequestasync?view=winrt-28000
HttpClient.SendRequestAsync Method (Windows.Web.Http) - Windows apps | Microsoft Learn
Send an HTTP request as an asynchronous operation. For programming guidance for the HttpClient class, and code examples, see the HttpClient conceptual topic.
httpclientmethodwindowswebapps