B4J Question Large file upload

There are several methods. Unfortunately the best approach is http but it will not give you feedback on the process

I use ssh

This one will give you the bytes already uploaded so you can know how much is missing. Afaik ftp does the same.

The downside is that is in the OS level. So you will have to thighten your security a notch.

Unfortunately SSH is not an option, since there need pre-communication between server and client on which file(s) to upload etc (part of a sync application).

Not receiving feedback is not a big issue (I think), but I am afraid to take an approach where a very large file needs to be put in memory (as is with a HTTP(s) POST I believe ?)

What's wrong with using FTP?

Did not think about this. Nice idea !