arangodb/Documentation/DocuBlocks/JSF_foxx_controller_around.md

Controller.around(path, callback)

Similar to Controller.before(path, callback) callback will be invoked instead of the specific handler. callback takes two additional paramaters opts and next where opts contains options assigned to the route and next is a function. Whenever you call next in callback the specific handler is invoked, if you do not call next the specific handler will not be invoked at all. So using around you can execute code before and after a specific handler and even call the handler only under certain circumstances. If you omit path callback will be called on every request.

@EXAMPLES

app.around('/high/way', function(req, res, opts, next) {
  //Do some crazy request logging
  next();
  //Do some more crazy request logging
});