I would like to create a Grails resources mapper that appends a query string to the actualUrl. All attempts thus far have failed - but maybe I\'m going about things the wron
You can append the params to the URL in *Resources.groovy i.e. at the point where the resource is declared (rather than in the mapper) using:
*Resources.groovy
resource url: '/js/foo.js', wrapper: { baseUrl -> def query = [l:'en_US'] baseUrl + '?' + query.collect { it }.join('&') }