Express.js : What is the difference between res.attachment and res.download?

Question

What is the difference between res.attachment and res.download and when to use which I am bit confused. In my case, I send my form data to the server as a JSON which will create a file out of it and respond with a download link. Which among the two: res.attachment and res.download should I use?

Answer 1

The res.attachment "Sets the HTTP response Content-Disposition header field to “attachment”."

This essentially says, 'Hey, this file should be viewed as an attachment, not a webpage.'

Whereas the res.download "Transfers the file at path as an “attachment”. Typically, browsers will prompt the user for download."

Find more about each HERE