Translating route

Good afternoon.

I actually work on a multilingual website. I really enjoy how laravel deals with that. It's make things really pleasant. However, I'm facing difficulties to translate my routes. I would like url as

• mywebsite.com/en/applications in english
• mywebsite.com/fr/candidatures in french
• ...

So I write files in lang/fr/routes.php, and so in languages I want to support :

return [
    'applications'  => 'candidatures',
];

Then in my RouteServiceProvider, il add in mapWebRoutes()

Route::middleware('web', 'setlocale')
            ->namespace($this->namespace)
            ->prefix('{locale}')
            ->where(['locale' => '[a-zA-Z]{2}'])
            ->group(base_path('routes/web.php'));

With setlocale a middleware containing:

public function handle($request, Closure $next)
    {
        app()->setLocale($request->segment(1));
        return $next($request);
    }

So now, I would espect use the routes

Route::resource(Lang::get('routes.applications'), 'ApplicationController');

As I already verified than Lang::get('routes.applications') give me "candidature" if I am on french part. But there, I have a 404 error I cant explain. If I add this to my web.php :

Route::get('/', function () {
	    var_dump(Lang::get('routes.applications'));
	});

It give me "candidatures", and Route::resource('candidatures', 'ApplicationController'); lead me at the right place. But Route::resource(Lang::get('routes.applications'), 'ApplicationController'); don't...

Thank you a lot for your help !