如何使用ajax在ASP.NET5中上传文件？

I've read many posts about uploading files using a traditional html form and using IFormFile on the server side (ASP.NET5 RC). However, I would like to upload a file using ajax (specifically ng-file-upload) and IFormFile doesn't seem to work when using ajax. The request payload looks like:I've read many posts about uploading files usin