How to use curl post to give input form file in a request? or What's the correct way to curl post wit

Thanks everyone! The `-F` flag worked perfectly once I added the extra fields.

One follow-up: what if the server expects the file in a specific field name, like `upload_file` instead of `file`? Do I just change the `-F` param to match?

Also, httpbin.org was a lifesaver for testing—appreciate the tip!