Express Send File For Download ((exclusive)) -
Depending on whether you want to force a download or simply display a file, Express provides different approaches:
In Express.js, sending a file for download is primarily handled by the built-in res.download() method. This method is a wrapper around res.sendFile() that specifically sets the necessary HTTP headers, such as Content-Disposition , to trigger a "Save As" prompt in the user's browser. Core Implementation Methods express send file for download