How to read data from session to view (Laravel)?

Question

Laravel

Good day everyone! I continue to get acquainted with Laravel, the question arose:
I try to manually authenticate the user using the attempt () method, everything works as it should, but if authorization fails, I redirect back and write an error message to the session
, it looks like this:

return redirect()->back()->with('error', 'Неверная пара логин пароль');

So how can I show this message to the user after the redirect? how to access session variable in view?
Thank you!

Answer 1

With validation

$user = \Auth::attempt(['email' => $request['email'], 'password' => $request['password']], true, true);

if(!$user) {
    $validator->errors()->add('email', 'Incorrect username or password.');
    return \Redirect::back()
                    ->withErrors($validator)
                    ->withInput();
}

Outputting an error to a template

@if ($errors->has())
     @foreach ($errors->all() as $error)
        {{ $error }}
     @endforeach
@endif

if just then
Output to template

if(Session::has('error'))
      {{ Session::get('error') }}
@endif

Answer 2

https://laravel.ru/docs/v5/session
I did this: I created a view that is included in the main site template. In the view, I checked the session, and if it existed, I displayed it.