What's the reason for wanting to use the URL? Does not using the Wildcard quick filter not work?
Actually I am embedding tableau dashboard in a website and I am passing filter values from webpage to tableau dashboard.
one of the filter in the webpage is a wildcard filter. so I want to pass the same wildcard to tableau also.
From what I could understand from your post is you want to pass dynamic user names to tableau viz.
To achieve that you can pass the username as parameter in the URL (comma separated if more than one).
The following link might help you in that
You can the filter value for that calculated field instead.
Haven't tried but I guess that would work