How to properly cancel the upload of a file to the server?

Question

JavaScript

The server is written in Express.js using the multer module. I use ng-file-upload to upload files on the client. Files are submitted as multipart/form-data. The problem is that when you cancel the download of a file using .abort() (this function is called in the browser when the button is clicked), the file remains on the server.

Answer 1

First of all, the file needs to be uploaded to the temporary space, after a successful upload, the client says which files to save, and the server moves them to permanent storage, cron runs through the temporary storage and cleans the folder

Answer 2

What file system is worth? Not everyone maintains file integrity.