How to save IFormFile to disk?

I'm trying to save a file on disk using this piece of code.

IHostingEnvironment _hostingEnvironment;
public ProfileController(IHostingEnvironment hostingEnvironment)
{
   _hostingEnvironment = hostingEnvironment;
}

[HttpPost]
public async Task<IActionResult> Upload(IList<IFormFile> files)
{
    foreach (var file in files)
    {
        var fileName = ContentDispositionHeaderValue
            .Parse(file.ContentDisposition)
            .FileName
            .Trim('"');

        var filePath = _hostingEnvironment.WebRootPath + "\\wwwroot\\" + fileName;
        await file.SaveAsAsync(filePath);
    }
    return View();
}

I was able to replace IApplicationEnvironment with IHostingEnvironment, and ApplicationBasePath with WebRootPath.

It seems like IFormFile doesn't have SaveAsAsync() anymore. How do I save file to disk then?

Solution 1:

A few things have changed since core's release candidates

public class ProfileController : Controller {
    private IWebHostEnvironment _hostingEnvironment;

    public ProfileController(IWebHostEnvironment environment) {
        _hostingEnvironment = environment;
    }

    [HttpPost]
    public async Task<IActionResult> Upload(IList<IFormFile> files) {
        string uploads = Path.Combine(_hostingEnvironment.WebRootPath, "uploads");
        foreach (IFormFile file in files) {
            if (file.Length > 0) {
                string filePath = Path.Combine(uploads, file.FileName);
                using (Stream fileStream = new FileStream(filePath, FileMode.Create)) {
                    await file.CopyToAsync(fileStream);
                }
            }
        }
        return View();
    }
}

Solution 2:

There are to be further changes in Core 3.0 as IHostingEnvironment is now marked as obsolete.

using Microsoft.Extensions.Hosting;

public class ProfileController  : Controller
{
    private IHostEnvironment _hostingEnvironment;

    public ProfileController(IHostEnvironment environment)
    {
        _hostingEnvironment = environment;
    }