code: function (req, res) {
              // Add items
              if (req.body.items instanceof Array) {
                  self.removeItems(req.body.items, function (err, result) {
                      if (!err) {
                          res.json( result );
                      } else {
                          res.json(500, { error: err });
                      }
                  });
              } else {
                  res.json(500, { error: "No `items` array in request body" });
              }
          }
docs: Expects an JSON object in the request with an array of items called `items`.