Laravel error is not passed to view - laravel

Question

I can't figure put why laravel blade doesn't catch my error validation and doesn't pass it to my view.
In detail
I do have error snippet in my blade template
below is my validation which works correctly
What I'm missing?
Thank you
This is json message I see instead of message in blade template
{
message: "The given data was invalid.",
status_code: 500
}
This snippet I use to let user know about error
#if(count($errors))
<div class="form-group">
<div class="alert alert-danger">
<ul>
#if($errors->all())
#foreach($errors->all() as $error)
<li>{{$error}}</li>
#endforeach
#endif
</ul>
</div>
</div> #endif
And finally this is my correctly working validation
$request->validate([
'email' => 'required|email|unique:subscribers|max:255',
]);
EDIT:
This is the rout in web.php
Route::post('saveemail', 'SaveSubscriberEmailController#saveEmail');
And this is the method
namespace App\Http\Controllers;
use App\subscriber;
use Carbon\Carbon;
use Illuminate\Http\Request;
use Ramsey\Uuid\Uuid;
class SaveSubscriberEmailController extends Controller
{
public function saveEmail(Request $request)
{
$request->validate([
'email' => 'required|email|unique:subscribers|max:255',
]);
$uuid = Uuid::uuid4();
$subscriber = new subscriber();
$subscriber->email = $request->email;
$subscriber->uuid = $uuid->toString();
$subscriber->created_at = Carbon::now();
$subscriber->save();
flash('Registration conformation email has been sent. Please check your mailbox. Thank you!')->success();
return redirect()->back();
}
}

Answer 1

I've had this problem before and the way I was able to fix it was to wrap the routes with a middleware group that includes the middleware \Illuminate\View\Middleware\ShareErrorsFromSession::class. It adds the session's errors to the view.
In your Kernel.php class's protected $middlewareGroups array it can look something like:
'web' => [
\Illuminate\View\Middleware\ShareErrorsFromSession::class,
// other middleware
],
Then where you declare your routes you can do:
Route::group(['middleware' => ['web']], function () {
Route::post('saveemail', 'SaveSubscriberEmailController#saveEmail');
};

Answer 2

Request validation only send error of 422 not 500 if you are getting this error it's because of something else and the formRequest error bag won't catch this error .

Answer 3

Route::post('saveemail', 'SaveSubscriberEmailController#saveEmail');
Put this route into web middleware. you can do this like
Route::middleware(['web'])->group(function () {
Route::post('saveemail', 'SaveSubscriberEmailController#saveEmail');
});
Change your controller to this.
class SaveSubscriberEmailController extends Controller
{
public function saveEmail(Request $request)
{
$validator = validate($request->all(),[
'email' => 'required|email|unique:subscribers|max:255',
]);
if($validator->fails()){
return back()->withErrors($validator);
}
$uuid = Uuid::uuid4();
$subscriber = new subscriber();
$subscriber->email = $request->email;
$subscriber->uuid = $uuid->toString();
$subscriber->created_at = Carbon::now();
$subscriber->save();
flash('Registration conformation email has been sent. Please check your mailbox. Thank you!')->success();
return redirect()->back();
}
}
Hope this helps