uploadfiles.cs

[HttpPost]
[RequestSizeLimit(300_000_000)]
[Authorize(Policy = "Administrator")]
public async Task<IActionResult> UploadFiles(List<IFormFile> files)
{
    if (files == null || files.Count == 0)
        return Content("files not selected");

    foreach (var file in files)
    {
        string todayDate = DateTime.UtcNow.ToString("yyyyMMdd");
        var path = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", todayDate, file.GetFilename());
        Directory.CreateDirectory(Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", todayDate));

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

    return RedirectToAction("Files", new { date = DateTime.UtcNow.ToString("yyyyMMdd") });
}