StartSession middleware clearing validate errors - php

Question

I was working with localization and had to add \Illuminate\Session\Middleware\StartSession::class, to my kernel.
My previous question about it here.
But now my $errors is always empty and the errors don't show up in view.
I also tried adding \Illuminate\View\Middleware\ShareErrorsFromSession::class, after StartSession to my kernel but the errors are still empty.
Controller :
public function postRegister(Request $request) {
$request_data = $request->all();
$request->validate([
'first-name' => 'required',
'last-name' => 'required',
]);
//other processing stuff
}
kernel
<?php
namespace App\Http;
use Illuminate\Foundation\Http\Kernel as HttpKernel;
class Kernel extends HttpKernel
{
/**
* The application's global HTTP middleware stack.
*
* These middleware are run during every request to your application.
*
* #var array
*/
protected $middleware = [
\Illuminate\Session\Middleware\StartSession::class,
\Illuminate\View\Middleware\ShareErrorsFromSession::class,
\Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
\Illuminate\Foundation\Http\Middleware\ValidatePostSize::class,
\App\Http\Middleware\TrimStrings::class,
\Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull::class,
\App\Http\Middleware\TrustProxies::class,
\App\Http\Middleware\Localization::class,
];
/**
* The application's route middleware groups.
*
* #var array
*/
protected $middlewareGroups = [
'web' => [
\App\Http\Middleware\EncryptCookies::class,
\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
\Illuminate\Session\Middleware\StartSession::class,
// \Illuminate\Session\Middleware\AuthenticateSession::class,
\Illuminate\View\Middleware\ShareErrorsFromSession::class,
\App\Http\Middleware\VerifyCsrfToken::class,
\Illuminate\Routing\Middleware\SubstituteBindings::class,
],
'api' => [
'throttle:60,1',
'bindings',
],
];
/**
* The application's route middleware.
*
* These middleware may be assigned to groups or used individually.
*
* #var array
*/
protected $routeMiddleware = [
'auth' => \Illuminate\Auth\Middleware\Authenticate::class,
'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
'bindings' => \Illuminate\Routing\Middleware\SubstituteBindings::class,
'can' => \Illuminate\Auth\Middleware\Authorize::class,
'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,
];
}
I read errors like this {{ $errors->first('first-name') }}
What am I doing wrong?

Answer 1

I think you are adding StartSession and ShareErrorsFromSession into a wrong variable, they are not alone HTTP middlewares, but rather features of a certain group of middleware, for example.
Web is a middleware group which includes various smaller middleware's which enrich further usable features which evolve around Request, like using Cookie, Session, CsrfToken, etc.
Try removing StartSession and ShareErrorsFromSession from $middleware variable.
EDIT: Also show us your Localization.php code, thanks

Answer 2

I had the same problem and I solved it by adding StartSession class then Localization class in $middlewareGroups web array and not in $middleware
because if you put it in $middleware (executed every HTTP request) the old session will be removed then create a new session.