title: Medium to large file uploads with progress updates in AspNet Core
body: <p>By medium to large I mean anything from 10mb -> 200mb (sound files if that is important)</p>
  
  <p>basically I want to make an API that does some spectral analysis on the file itself, this would require a file upload. But for UI/UX reasons it would be nice to have a progress bar for the upload process. What are the common architectures for achieving this interaction.</p>
  
  <p>The client application uploading the file will be a javascript client (reactjs/redux) and the API is written in ASP.NET Core. I have seen some examples which use websockets to update the client on progress, and other examples where the client polls for status updates given a resource url to query the status. Are there any best practices (or the "modern way of doing this") for doing such a thing that I should know of? TIA</p>