Session::flash('success', 'Data has been saved successfully'); - laravel

Question

I am using the following code to show flash message, but it is not working.
PostController
public function store(Request $request){
$this->validate($request,array(
'title'=>'required|max:255',
'slug' =>'required|alpha_dash|min:5|max:255|unique:posts,slug',
'body' =>'required'
));
//store in the database
$post = new Post;
$post->title = $request->title;
$post->slug = $request->slug;
$post->body = $request->body;
$post->save();
//This code will generate flash message about success or failure about data insert
Session::flash('success', 'Data has been saved successfully!');
//Redirect to another page
return redirect()->route('posts.show', $post->id);
}
Then to display it the following code is used:
message.blade.php
#if(Session::has('success'))
<div class="alert alert-success" role= "alert">
<strong>Successful:</strong>
{{ Session::get('success') }}
</div>
#endif
#if(count($errors) > 0)
<div class="alert alert-danger" role="alert">
<strong>Errors:</strong>
<ul>
#foreach($errors as $error)
<li> {{ $error }} </li>
#endforeach
</ul>
</div>
#endif
The code above is not showing any flash message. But when
Session::flash('success', 'Data has been saved successfully!');
is written as:
Session::put('success', 'Data has been saved successfully!');
the flash message is displayed and does not disappear.
The routes.php is :
Route::group(['middleware' => ['web']], function(){
Route::get('auth/login', ['as' =>'login', 'uses'=>
'Auth\AuthController#getLogin']);
Route::post('auth/login', 'Auth\AuthController#postLogin');
Route::get('auth/logout', ['as' => 'logout', 'uses' =>
'Auth\AuthController#getLogout']);
Route::get('auth/register','Auth\AuthController#getRegister');
Route::post('auth/register','Auth\AuthController#postRegister');
Route::get('password/reset/{token?}',
'Auth\PasswordController#showResetForm');
Route::post('password/email',
'Auth\PasswordController#sendResetLinkEmail');
Route::post('password/reset','Auth\PasswordController#reset');
Route::get('contact', 'PagesController#getContact');
Route::get('about', 'PagesController#getAbout');
Route::get('/', 'PagesController#getIndex');
Route::get('reader/{slug}', ['as' => 'reader.single', 'uses' =>
'ReaderController#getSingle'])
->where('slug', '[\w\d\-\_]+');
Route::get('reader', ['as' => 'reader.index', 'uses' =>
'ReaderController#getIndex' ]);
Route::resource('posts', 'PostController');
});
Help please!

Answer 1

1.- Make sure if u are including the message template on your view, in this case your SHOW view
2.- Try replacing your message template for this:
#if(Session::has('success'))
<div class="alert alert-success" role= "alert">
<strong>Successful:</strong>
{!! session('success') !!}
</div>
#endif
#if(count($errors) > 0)
<div class="alert alert-danger" role="alert">
<strong>Errors:</strong>
<ul>
#foreach($errors as $error)
<li> {{ $error }} </li>
#endforeach
</ul>
</div>
#endif
Look, i'm using {!! session('success') !!} instead of yours