Laravel, IF, ELSE in Routing files?

Question

Laravel

Is it good practice in Laravel to use IF, ELSE in Routing files?
For example:
Route::group([ bla... bla...
if (Check)
Route::get(....
else
Route::get(...
});
Or use it according to other application logic?

Answer 1

middleware
up
router can process subdomains
https://laravel.com/docs/5.1/routing#route-group-s...