How can I track file changes by url?

Question

Computer networks

The file is located on the http server. You need to check its weight every 5 minutes. If weight has changed=tray popup\beep.

Answer 1

It seems to me that what you need is a HEAD request :

Similar to the GET method, except that there is no body in the server response. The HEAD request is typically used to retrieve metadata, check for the existence of a resource (URL validation), and see if it has changed since it was last accessed.