GET and POST params from HttpServletRequest in Grails

GET and POST params from HttpServletRequest

package com.selly.filters

import org.codehaus.groovy.grails.web.util.WebUtils

class ParamsFilters {

    List globalParams = [
        "controller",
        "action",
        "format"
    ]

    def filters = {
        all(controller:'*', action:'*') {
            before = {
                Map paramsRequest = params.findAll {
                    return !globalParams.contains(it.key)
                }

                Map paramsGet = WebUtils.fromQueryString(request.getQueryString() ?: "")
                Map paramsPost = paramsRequest.minus(paramsGet)

                request.setAttribute('paramsGet', paramsGet)
                request.setAttribute('paramsPost', paramsPost)
            }
            after = { Map model ->

            }
            afterView = { Exception e ->

            }
        }
    }
}