ReadAsMultipartAsync equvialent in .NET core 2

Question

I'am rewriting a .net 4.5 application to aspnet core 2.0 and I have a method that i have some problem updating:

    [HttpPut]
    [Route("api/files/{id}")]
    public async Task<Person> Put(int id)
    {
        var filesReadToProvider = await Request.Content.ReadAsMultipartAsync();
        var fileStream = await filesReadToProvider.Contents[0].ReadAsStreamAsync();
        return _personService.UpdatePerson(id, fileStream);
    }

It seems that request no longer has Content, but body. Which is fine. But how how do i read the body if it is a MimeMultipart now?

I have looked into IFormFile, but don't I have to change something in the frontend?

Anything that will help me in the right direction is appreciated :)

Answer 1

See File uploads in ASP.NET Core ... mainly the section of Uploading large files with streaming. It has to be something like

var boundary = MultipartRequestHelper.GetBoundary(
    MediaTypeHeaderValue.Parse(Request.ContentType),
    _defaultFormOptions.MultipartBoundaryLengthLimit);
var reader = new MultipartReader(boundary, HttpContext.Request.Body);

var section = await reader.ReadNextSectionAsync();