arangodb/Documentation/DocuBlocks/JSF_foxx_controller_before.md

Controller.before(path, callback)

Defines an additional function on the route path which will be executed before the callback defined for a specific HTTP verb is executed. The callback function has the same signature as the callback in the specific route. You can also omit the path, in this case callback will be executed before handleing any request in this Controller.

If callback returns the Boolean value false, the route handling will not proceed. You can use this to intercept invalid or unauthorized requests and prevent them from being passed to the matching routes.

@EXAMPLES

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