IFormFile to Stream example

File

using System.IO;

namespace VestaProperty.Core.File
{
  public class File
  {
    public File()
    {
      this.Content = (Stream) new MemoryStream();
    }

    public string Name { get; set; }

    public Stream Content { get; set; }

    public string ContentType { get; set; }

    public long ContentLength { get; set; }

    public string Extension
    {
      get
      {
        return Path.GetExtension(this.Name);
      }
    }
  }
}

FormFileExtensions

using Microsoft.AspNetCore.Http;
using System.Threading;
using System.Threading.Tasks;

namespace VestaProperty.Core.File.FormFile
{
  public static class FormFileExtensions
  {
    public static async Task<VestaProperty.Core.File.File> NewFile(this IFormFile formFile)
    {
      VestaProperty.Core.File.File file = new VestaProperty.Core.File.File()
      {
        ContentLength = formFile.Length,
        ContentType = formFile.ContentType,
        Name = formFile.FileName
      };
      await formFile.CopyToAsync(file.Content, new CancellationToken());
      return file;
    }
  }
}