HX-Source ~ htmx

The HX-Source request header contains the element that triggered the request. Format is tag#id like button#submit.

Elements without an ID use only the tag name like div or form.

Example

Check which element triggered the request.


source = request.headers.get('HX-Source')
if source == 'button#submit-btn':
    # Handle button submission
    return handle_button_submit()