Adding app/Http/Middleware/Locale.php

app/Http/Kernel.php

@@ -33,6 +33,7 @@ class Kernel extends HttpKernel
             \App\Http\Middleware\EncryptCookies::class,
             \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
             \Illuminate\Session\Middleware\StartSession::class,
+            \App\Http\Middleware\Locale::class,
             // \Illuminate\Session\Middleware\AuthenticateSession::class,
             \Illuminate\View\Middleware\ShareErrorsFromSession::class,
             \App\Http\Middleware\VerifyCsrfToken::class,

app/Http/Middleware/Locale.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Illuminate\Cookie\Middleware\EncryptCookies as Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+
+class Locale extends Middleware
+{
+    /**
+     * Handle an incoming request.
+     * @param \Illuminate\Http\Request $request
+     * @param \Closure $next
+     * @return mixed
+     */
+    public function handle(Request $request, Closure $next)
+    {
+        if (session()->has('locale')) {
+            app()->setlocale(session()->get('locale'));
+        }
+        return $next($request);
+    }
+}