How can I receive an image in C# ASP.NET Core MVC from Xamarin.Forms Android?

Question

I'm trying to receive an image from Xamarin Forms on Android in my ASP.NET Core MVC web page (written in C#).

My Xamarin.form code:

var file = await MediaPicker.PickPhotoAsync();

if (file == null) 
    return;

var content = new MultipartFormDataContent();
content.Add(new StreamContent(await file.OpenReadAsync()), "file", file.FileName);

var httpClient = new HttpClient();

String url = "http://urlMyWeb/";
httpClient.BaseAddress = new Uri(url);
            
var response = await httpClient.PostAsync("", content);

if (response.IsSuccessStatusCode)
{
    lblStatus.Text = "successful upload";
}
else
{
    lblStatus.Text = "upload failed";
}

ASP.NET Core MVC web app HomeController code:

[HttpPost]
public async Task<ActionResult> UploadFile(IFormFile file)
{
        try
        {
            if (file.Length > 0)
            {
                string _FileName = Path.GetFileName(file.FileName);
                string _path = Path.Combine(Directory.GetCurrentDirectory(), "Images", _FileName);

                using (var stream = new FileStream(_path, FileMode.Create))
                {
                    await file.CopyToAsync(stream);
                }
            }

            ViewBag.Message = "File uploaded successfully!";
            return View();
        }
        catch
        {
            ViewBag.Message = "File upload failed";
            return View();
        }
}

I am trying to save the image that I sent from Xamarin Forms to my server in a folder called Images. I tried this code but I can't make it work.

When I sent the file, Xamarin responds with "successful upload". So, it sent the image, but I never receive it in the ASP.NET Core web app.

How could I resolve this?

Thank you very much!