# File lib/apipie/client/base.rb, line 87
      def fill_params_in_url(url, params)
        params          ||= { }
        # insert param values
        url_param_names = params_in_path(url)
        url             = params_in_path(url).inject(url) do |url, param_name|
          param_value = params[param_name] or
              raise ArgumentError, "missing param '#{param_name}' in parameters"
          url.sub(":#{param_name}", param_value.to_s)
        end

        return url, params.reject { |param_name, _| url_param_names.include? param_name }
      end