Laravel Middleware to set language from subdomain

SetLanguage.php

<?php

namespace App\Http\Middleware;

use Closure;

class SetLanguage
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
	public function handle($request, Closure $next)
	{
		$pieces = explode('.', $request->getHost());

		if( ($pieces[0] == 'fr') || ($pieces[0] == 'ch')){
			session(['locale' => 'fr']);
		} 

		return $next($request);
	}
}