A middleware that will validate a version request parameter against the application
version, and generate an error if they don't match.
This is a "middleware/controller" because the wrappers for both are the same, the
difference is that, for controllers, Jimpex sends a second parameter with the route
where they are mounted.
By validating the route parameter, the function can know whether the implementation is
going to use the middleware by itself or as a route middleware.
If used as middleware, it will just return the result of
VersionValidator.getMiddleware; but if used as controller, it will mount it on
[route]/:version/*.
A middleware that will validate a
versionrequest parameter against the application version, and generate an error if they don't match. This is a "middleware/controller" because the wrappers for both are the same, the difference is that, for controllers, Jimpex sends a second parameter with the route where they are mounted. By validating the route parameter, the function can know whether the implementation is going to use the middleware by itself or as a route middleware. If used as middleware, it will just return the result of VersionValidator.getMiddleware; but if used as controller, it will mount it on[route]/:version/*.