how to get request.files attribute after flask send_from_directory?

[dayyass]

I have a master/slave architecture with master and slave flask restful apps and I want to send file from slave node to master node to send it further to user (different node).

I used send_from_directory function to do it, but after applying that function on slave node, the request on master node doesn’t have files attribute, so can neither push it forward to user node nor save it in tmp folder and send it to user from file system with send_from_directory.

Could anyone help me with my problem?
I’ve spent several days for that without any success.