This addon creates a field type that auto generates an url on the go.
Clone this project to the addons folder.
cd path/to/cockpit/addons
git clone https://github.com/MarcoDaniels/cockpit-field-autourl.git
Create a field Autourl field type with a pattern string options.
Use a colon : to define what field name to use in the pattern:
{
"pattern": "/myprefix/:field1/:field2/"
}
Note: Currently it only supports field types text and select