[Vuejs]-How to setup file upload from NodeJS/VueJS to another server?

You have many options on how to move the files to another site.

You could store them in a shared bucket or shared directory between your 2 backends or you could add another route to download that file.

You could configure a cronjob to scp or rsync those files to your target machine.

This is really more of a question of how to sync a directory to some place else.