Is it possible to get a real progress of uploading file using Retrofit 2 and OkHttp 3?
I'm testing this solution: https://stackoverflow.com/a/36260692/1885562 but it's not working as you may expect. I'm getting 100% progress after couple dozens of milliseconds, but the upload should take over 10 seconds (3MB file on 1Mbit connection). I'm guessing that there's some sort of buffer before actual HTTP call.
How to solve this?
